NORTHROP GRUMMAN CORP
S-4, 1997-06-09
AIRCRAFT
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<PAGE>
 
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 9, 1997
                                                     REGISTRATION NO. 333-
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                --------------
                                   FORM S-4
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                                --------------
                         NORTHROP GRUMMAN CORPORATION
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                <C>                                <C>
            DELAWARE                              3721                            95-1055798
 (STATE OR OTHER JURISDICTION OF      (PRIMARY STANDARD INDUSTRIAL             (I.R.S. EMPLOYER
  INCORPORATION OR ORGANIZATION)      CLASSIFICATION CODE NUMBERS)           IDENTIFICATION NO.)
</TABLE>
 
                            1840 CENTURY PARK EAST
                         LOS ANGELES, CALIFORNIA 90067
                                (310) 201-3000
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                                --------------
 
                            JAMES C. JOHNSON, ESQ.
       CORPORATE VICE PRESIDENT, SECRETARY AND ASSISTANT GENERAL COUNSEL
                         NORTHROP GRUMMAN CORPORATION
                            1840 CENTURY PARK EAST
                         LOS ANGELES, CALIFORNIA 90067
                                (310) 201-3000
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
 
                                --------------
                                  COPIES TO:

  ANDREW E. BOGEN, ESQ.                        E. BENJAMIN MITCHELL, JR., ESQ.
GIBSON, DUNN & CRUTCHER LLP                           LOGICON, INC.
  333 SOUTH GRAND AVENUE                           3701 SKYPARK DRIVE
LOS ANGELES, CALIFORNIA 90071                    TORRANCE, CALIFORNIA 90505
    (213) 229-7000                                   (310) 373-0220
 
                                --------------

  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement and the
effective time of the merger (the "Merger") of NG Acquisition, Inc., a
Delaware corporation ("Acquisition") and a wholly owned subsidiary of Northrop
Grumman Corporation, a Delaware corporation ("Northrop"), with and into
Logicon, Inc., a Delaware corporation ("Logicon"), as described in the
Agreement and Plan of Merger, dated as of May 4, 1997 (the "Merger
Agreement"), among Northrop, Logicon and Acquisition attached as Annex A to
the Proxy Statement/Prospectus forming part of this Registration Statement.
  If the securities being registered on this Form are to be offered in
connection with the formation of a holding company and there is compliance
with General Instruction G, check the following box. [_]

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                                                         PROPOSED
                                           PROPOSED      MAXIMUM
 TITLE OF EACH CLASS OF      AMOUNT        MAXIMUM      AGGREGATE    AMOUNT OF
    SECURITIES TO BE         TO BE      OFFERING PRICE   OFFERING   REGISTRATION
       REGISTERED        REGISTERED(1)     PER UNIT      PRICE(2)      FEE(3)
- --------------------------------------------------------------------------------
<S>                      <C>            <C>            <C>          <C>
Common Stock, $1.00 par
 value.................    8,633,619      $82 15/16    $716,050,776   $216,986
- --------------------------------------------------------------------------------
Common Stock Purchase
 Rights................    8,633,619            (4)           (4)          (4)
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
</TABLE> 
(1) The amount of common stock, $1.00 par value, of Northrop (including the
    associated common stock purchase rights, the "Northrop Common Stock") to
    be registered hereunder has been determined on the basis of the exchange
    ratio for such shares in the Merger (i.e., 0.6161 of a share of Northrop
    Common Stock for each outstanding share of common stock, $0.10 par value,
    of Logicon (including the associated common stock purchase rights, the
    "Logicon Common Stock")), and the maximum number of shares of Northrop
    Common Stock (i.e., 8,633,619) to be received in the Merger by holders of
    Logicon Common Stock (assuming for purposes of calculating the fee payable
    in respect of this Registration Statement only that all outstanding and
    currently exercisable options to purchase shares of Logicon Common Stock
    will be exercised in full prior to the effective time of the Merger).
(2) Estimated pursuant to Rule 457(f)(1) of the Securities Act of 1933, as
    amended (the "Securities Act"), based upon the market value of the shares
    of Northrop Common Stock to be received by the holders of Logicon Common
    Stock in the Merger ($82 15/16 per share, i.e., the average of the high
    and low sales prices per share of the Northrop Common Stock as reported on
    The New York Stock Exchange, Inc. ("NYSE") Composite Transactions
    reporting system on June 5, 1997).
(3) The registration fee for the Northrop Common Stock registered hereby,
    $216,986 has been calculated pursuant to Section 6(b) of, and Rule 457(c)
    under, the Securities Act, as follows: 1/33rd of 1% of the product of: (x)
    $82 15/16, the average of the high and low sale prices per share of
    Northrop Common Stock as reported in the NYSE Composite Transactions on
    June 5, 1997, and (y) 8,633,619, the maximum number of shares of Northrop
    Common Stock to be received by Logicon stockholders in the Merger. A fee
    of $163,945 was paid on May 16, 1997 pursuant to Rules 0-11(a)(4) and (c)
    and 14a-6(i)(4) under the Securities Exchange Act of 1934, as amended (the
    "Exchange Act"), in respect of the Merger upon filing by Logicon with the
    Commission of its preliminary proxy materials relating thereto pursuant to
    Rules 0-11(a)(2) and 14a-6(a)(4) under the Exchange Act, the registration
    fee payable herewith has been reduced by the amounts of the fee previously
    paid upon the filing of such preliminary proxy materials. Accordingly, an
    additional fee of $53,041 has been paid with the filing of this
    Registration Statement.
(4) The common stock purchase rights (the "Rights") of Northrop initially are
    attached to and trade with the shares of Northrop Common Stock being
    registered hereby. The value attributable to such Rights, if any, is
    reflected in the market price of the Northrop Common Stock.
                                --------------
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(a) OF THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THE
REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION,
ACTING PURSUANT TO SUCH SECTION 8(a), MAY DETERMINE.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                        [LETTERHEAD OF LOGICON, INC.]
 
                                 June 6, 1997
 
Dear Stockholder:
 
  On May 4, 1997, Logicon, Inc. and Northrop Grumman Corporation signed a
definitive agreement for the merger of Northrop Grumman and Logicon in a
stock-for-stock transaction. If approved by Logicon Stockholders at a special
meeting scheduled for July 17, 1997 stockholders of Logicon will receive
0.6161 shares of Northrop Grumman common stock for each share of Logicon
common stock. The transaction is subject to normal government review/approval.
 
  Enclosed is the Notice of Meeting and Proxy Statement/Prospectus relating to
the proposed merger and a proxy. The Proxy Statement/Prospectus fully explains
why the board of directors has unanimously voted in favor of the proposed
merger. Please read this material carefully and vote.
 
  Also enclosed is our annual report for fiscal year 1997 as submitted on Form
10-K to the Securities and Exchange Commission. For the year, the company
recorded $566 million in revenues, up 19 percent over last year's revenues of
$476 million. Net income was $32.7 million compared with $25.3 million for
last year; earnings per share were $2.29 compared with $1.78 in the previous
year. The results of this year include the operations of Geodynamics, which
was acquired on March 28, 1996.
 
  I am very pleased about the proposed merger with Northrop Grumman. This
merger will improve the business prospects of both companies, provide much
broader resources for our customers and enhance opportunities for our
employees. I strongly urge each of you to vote in favor of the merger.
 
  I have had the privilege of being CEO of this public company for almost 28
years. I can simply say that it has been a singularly satisfying business
experience for me and one that I would not trade for any other. Lastly, as
this will probably be my last letter to you, I want to take this opportunity
to thank you for your trust, faith and support.
 
                                          Sincerely,
                                          /s/ J. R. Woodhull
                                          J. R. Woodhull
                                          President and Chief Executive
                                           Officer
<PAGE>
 
                                 LOGICON, INC.
                             TORRANCE, CALIFORNIA
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
 
                     TO BE HELD ON THURSDAY, JULY 17, 1997
 
  A Special Meeting of Stockholders of Logicon, Inc., a Delaware corporation
("Logicon"), will be held in the Roman Room, The Biltmore Hotel, 506 South
Grand Avenue, Los Angeles, California, 90071, at 10:30 a.m., Pacific Daylight
Savings Time, on Thursday, July 17, 1997, for the following purposes:
 
    1. To consider and vote upon a proposal to approve and adopt the
       Agreement and Plan of Merger, dated as of May 4, 1997 (the "Merger
       Agreement"), relating to the merger of a wholly owned subsidiary of
       Northrop Grumman Corporation ("Northrop") with and into Logicon,
       pursuant to which each outstanding share of common stock, $0.10 par
       value per share, of Logicon, including the associated Logicon common
       stock purchase rights, would be converted into the right to receive
       0.6161 of a share of common stock, $1.00 par value per share, of
       Northrop, including the associated Northrop common stock purchase
       rights provided by Northrop, all as more fully set forth in the
       accompanying Proxy Statement/Prospectus and in the Merger Agreement,
       a copy of which is included as Annex A thereto; and
 
    2. To transact any other business that may properly come before the
       meeting or any adjournment thereof.
 
  Only stockholders of record at the close of business on June 6, 1997 are
entitled to notice of and to vote at the meeting.
 
                                        By Order of the Board of Directors of
                                                    LOGICON, INC.

                                          /s/ E. BENJAMIN MITCHEL, JR.
                                              E. BENJAMIN MITCHELL, JR.
                                                      Secretary
 
June 13, 1997
 
  IT IS DESIRABLE THAT AS MANY AS POSSIBLE OF THE STOCKHOLDERS BE REPRESENTED
AT THE MEETING. THEREFORE, WHETHER OR NOT YOU EXPECT TO ATTEND THE MEETING IN
PERSON, PLEASE SIGN AND RETURN THE ACCOMPANYING PROXY. YOU MAY REVOKE OR
CHANGE YOUR PROXY AT ANY TIME BEFORE THE VOTING. IF YOU ATTEND THE MEETING YOU
MAY REVOKE YOUR PROXY AND VOTE IN PERSON. A RETURN ENVELOPE IS ENCLOSED FOR
YOUR USE AND NO POSTAGE IS REQUIRED IF MAILED IN THE UNITED STATES. PLEASE
RESPOND AS SOON AS POSSIBLE.
<PAGE>
 
                                 LOGICON, INC.
 
                               ----------------
 
                                PROXY STATEMENT
 
                               ----------------
 
                         NORTHROP GRUMMAN CORPORATION
 
                               ----------------
 
                                  PROSPECTUS
 
                               ----------------
 
  This Proxy Statement/Prospectus and the annexes hereto (the "Proxy
Statement/Prospectus") is being furnished to the holders of common stock, par
value $0.10 per share (including the associated Logicon common stock purchase
rights, the "Logicon Common Stock"), of Logicon, Inc., a Delaware corporation
("Logicon"), in connection with the solicitation of proxies by the Board of
Directors of Logicon (the "Board of Directors") for use at a Special Meeting
of Stockholders of Logicon to be held at the Roman Room, The Biltmore Hotel,
Los Angeles, California, 90071, on Thursday, July 17, 1997, at 10:30 a.m.,
Pacific Daylight Savings Time, and at any and all adjournments or
postponements thereof (the "Special Meeting").
 
  This Proxy Statement/Prospectus relates, among other things, to the proposed
merger (the "Merger") of NG Acquisition, Inc., a Delaware corporation
("Acquisition") and a wholly owned subsidiary of Northrop Grumman Corporation,
a Delaware corporation ("Northrop"), with and into Logicon, pursuant to an
Agreement and Plan of Merger, dated as of May 4, 1997 (the "Merger
Agreement"), among Northrop, Logicon and Acquisition, a copy of which is
attached as Annex A to this Proxy Statement/Prospectus. Upon consummation of
the Merger, Logicon will be a wholly owned subsidiary of Northrop. In the
Merger, each outstanding share of Logicon Common Stock (other than shares
owned by Logicon as treasury stock or by its subsidiaries or by Northrop,
Acquisition or any of their subsidiaries, all of which shall be canceled) will
be converted into and will become 0.6161 (the "Exchange Ratio") of a fully
paid and nonassessable share of common stock, par value $1.00 per share, of
Northrop (including the associated Northrop common stock purchase rights, the
"Northrop Common Stock"). Cash will be paid in lieu of any fractional shares
of Northrop Common Stock. Consummation of the Merger is subject to various
conditions, including the approval and adoption of the Merger Agreement by a
majority of the outstanding shares of Logicon Common Stock at the Special
Meeting.
 
  Northrop has filed a Registration Statement on Form S-4 (such Registration
Statement and all exhibits relating thereto and any amendments thereof, the
"Registration Statement") under the Securities Act of 1933, as amended (the
"Securities Act"), with the Securities and Exchange Commission (the
"Commission") covering the shares of Northrop Common Stock to be issued in
connection with the Merger. This Proxy Statement/Prospectus, along with the
documents and portions of documents incorporated herein by reference, also
constitutes the prospectus of Northrop filed as part of the Registration
Statement relating to up to 8,633,619 shares of Northrop Common Stock to be
issued to Logicon stockholders in connection with the Merger.
 
  Northrop Common Stock is traded on the New York Stock Exchange (the "NYSE")
and the Pacific Exchange (the "PE") under the symbol "NOC." On June 6, 1997,
the closing sales price for Northrop Common Stock as reported on the NYSE
Composite Transactions reporting system was $83 per share.
 
  All information contained in this Proxy Statement/Prospectus with respect to
Northrop and Acquisition has been provided by Northrop. All information
contained in this Proxy Statement/Prospectus with respect to Logicon has been
provided by Logicon.
 
  This Proxy Statement/Prospectus and the accompanying form of proxy are first
being mailed to stockholders of Logicon on or about June 13, 1997. A
stockholder who has given a proxy may revoke it at any time prior to its
exercise. See "The Special Meeting--Record Date; Voting Rights; Proxies."
 
                               ----------------
 
 THESE  SECURITIES HAVE NOT  BEEN APPROVED OR  DISAPPROVED BY THE  SECURITIES
   AND EXCHANGE COMMISSION  OR ANY STATE SECURITIES COMMISSION  NOR HAS THE
     SECURITIES  AND   EXCHANGE  COMMISSION   OR  ANY   STATE  SECURITIES
       COMMISSION PASSED  UPON THE ACCURACY  OR ADEQUACY  OF THIS PROXY
         STATEMENT/PROSPECTUS. ANY REPRESENTATION  TO THE CONTRARY  IS
          A CRIMINAL OFFENSE.
 
         The date of this Proxy Statement/Prospectus is June 9, 1997.
<PAGE>
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION NOT CONTAINED OR INCORPORATED BY REFERENCE IN THIS PROXY
STATEMENT/PROSPECTUS AND, IF SO GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATION NOT CONTAINED HEREIN MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED. THIS PROXY STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO
SELL, OR THE SOLICITATION OF AN OFFER TO PURCHASE, ANY OF THE SECURITIES
OFFERED BY THIS PROXY STATEMENT/PROSPECTUS, OR THE SOLICITATION OF A PROXY, IN
ANY JURISDICTION TO OR FROM ANY PERSON TO OR FROM WHOM IT IS UNLAWFUL TO MAKE
SUCH OFFER OR SOLICITATION OF AN OFFER, OR PROXY SOLICITATION IN SUCH
JURISDICTION. NEITHER THE DELIVERY OF THIS PROXY STATEMENT/PROSPECTUS NOR THE
ISSUANCE OR SALE OF ANY SECURITIES HEREUNDER SHALL UNDER ANY CIRCUMSTANCES
CREATE ANY IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE INFORMATION SET
FORTH HEREIN OR INCORPORATED BY REFERENCE HEREIN SINCE THE DATE HEREOF.
 
 
                             AVAILABLE INFORMATION
 
  Northrop and Logicon are subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, in
accordance therewith, each files reports, proxy statements and other
information with the Commission. Such reports, proxy statements and other
information filed may be inspected and copied at the public reference
facilities maintained by the Commission at Room 1024, Judiciary Plaza,
450 Fifth Street, N.W., Washington, D.C., 20549 and may be available at the
following regional offices of the Commission: Chicago Regional Office,
Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, Illinois,
60661; and New York Regional Office, Seven World Trade Center, Suite 1300, New
York, New York, 10048. Copies of such materials can be obtained at prescribed
rates from the Public Reference Section of the Commission at Judiciary Plaza,
450 Fifth Street, N.W., Washington, D.C., 20549. The Commission also maintains
a web site that contains reports, proxy and information statements and other
information regarding registrants that file electronically with the
Commission, including Northrop and Logicon. The address of the Commission's
web site is http://www.sec.gov. In addition, material filed by Northrop can be
inspected at the offices of the NYSE, 20 Broad Street, New York, New York,
10005, and the PE, 301 Pine Street, San Francisco, California, 94104, on which
the shares of Northrop Common Stock are listed. Material filed by Logicon can
be inspected at the offices of the NYSE at the address set forth in the
preceding sentence.
 
  This Proxy Statement/Prospectus does not contain all the information set
forth in the Registration Statement, of which this Proxy Statement/Prospectus
is a part, which Northrop has filed with the Commission under the Securities
Act. Reference is made to such Registration Statement for further information
with respect to Northrop and the securities of Northrop offered hereby.
Statements contained herein concerning the provisions of documents are
necessarily summaries of such documents, and each statement is qualified in
its entirety by reference to the copy of the applicable document filed with
the Commission or attached as an annex hereto.
 
                                       2
<PAGE>
 
                          INCORPORATION BY REFERENCE
 
  The following documents filed by Logicon with the Commission (File No. 1-
07777) pursuant to the Exchange Act hereby are incorporated by reference into
this Proxy Statement/Prospectus:
 
    1. Logicon's annual report on Form 10-K filed May 30, 1997 for the fiscal
  year ended March 31, 1997.
 
  The following documents filed by Northrop with the Commission (File No. 1-
03229) pursuant to the Exchange Act hereby are incorporated by reference into
this Proxy Statement/Prospectus:
 
    1. Northrop's quarterly report on Form 10-Q filed May 7, 1997 for the
  quarter ended March 31, 1997;
 
    2. Northrop's annual report on Form 10-K filed February 25, 1997 for the
  fiscal year ended December 31, 1996;
 
    3. Northrop's Proxy Statement filed April 3, 1997 in connection with
  Northrop's Annual Meeting of Stockholders held on May 21, 1997;
 
    4. The description of Northrop Common Stock contained in Northrop's
  Registration Statement on Form 8-B filed on June 20, 1985; and
 
    5. The description of the Northrop Rights (as defined below) contained in
  Northrop's Registration Statement on Form 8-A filed on September 22, 1988,
  as amended by Northrop's Registration Statement on Form 8 filed on August
  2, 1991, as amended by Northrop's Registration Statement on Form 8-A/A
  filed on October 7, 1994.
 
  All reports and other documents filed by Northrop or Logicon pursuant to
Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the date
hereof and prior to the Special Meeting shall be deemed to be incorporated by
reference herein and to be a part hereof from the date of filing of such
reports and documents. Any statement contained in a document incorporated or
deemed to be incorporated by reference herein shall be deemed to be modified
or superseded for purposes of this Proxy Statement/Prospectus and the
Registration Statement of which it is a part to the extent that a statement
contained herein, or in any other subsequently filed document that also is
incorporated or deemed to be incorporated by reference herein, modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of
this Proxy Statement/Prospectus.
 
  THIS PROXY STATEMENT/PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE WHICH
ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. COPIES OF THESE DOCUMENTS
(OTHER THAN EXHIBITS TO SUCH DOCUMENTS UNLESS SUCH EXHIBITS ARE SPECIFICALLY
INCORPORATED BY REFERENCE HEREIN) ARE AVAILABLE WITHOUT CHARGE TO ANY PERSON
TO WHOM THIS PROXY STATEMENT/PROSPECTUS IS DELIVERED, INCLUDING ANY BENEFICIAL
OWNER, UPON WRITTEN OR ORAL REQUEST TO, IN THE CASE OF DOCUMENTS RELATING TO
LOGICON, LOGICON, INC., 3701 SKYPARK DRIVE, TORRANCE, CALIFORNIA, 90505-4794,
ATTENTION: SECRETARY (TELEPHONE NO. (310) 373-0220), OR, IN THE CASE OF
DOCUMENTS RELATING TO NORTHROP, NORTHROP GRUMMAN CORPORATION, 1840 CENTURY
PARK EAST, LOS ANGELES, CALIFORNIA, 90067, ATTENTION: SECRETARY (TELEPHONE NO.
(310) 201-3000). IN ORDER TO ENSURE TIMELY DELIVERY OF THE DOCUMENTS, ANY
REQUEST SHOULD BE MADE BY JUNE 20, 1997.
 
 
                                       3
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
AVAILABLE INFORMATION......................................................   2

INCORPORATION BY REFERENCE.................................................   3

SUMMARY....................................................................   7
  The Companies ...........................................................   7
  The Special Meeting .....................................................   7
  Surrender of Stock Certificates .........................................   8
  Recommendation of the Board of Directors ................................   8
  The Merger...............................................................   8
  Effective Time of the Merger ............................................  10
  Opinion of Financial Adviser ............................................  11
  Interests of Certain Persons in the Merger...............................  11
  Certain Federal Income Tax Consequences..................................  11
  Comparative Rights of Stockholders ......................................  11
  Comparative Per Share Prices ............................................  11
  Certain Other Agreements.................................................  12
  Selected Historical Consolidated Combined Financial Data ................  12
  Selected Unaudited Pro Forma Combined Financial Data ....................  14
  Comparative Per Share Data ..............................................  14

GENERAL INFORMATION........................................................  16

THE COMPANIES..............................................................  16
  Northrop.................................................................  16
  Acquisition..............................................................  16
  Logicon..................................................................  16

PRICE RANGE OF COMMON STOCK AND DIVIDEND INFORMATION ......................  17
  Common Stock.............................................................  17
  Dividend Policy..........................................................  18

THE SPECIAL MEETING........................................................  19
  Purpose of the Special Meeting...........................................  19
  Record Date; Voting Rights; Proxies......................................  19
  Solicitation of Proxies..................................................  19
  Quorum...................................................................  19
  Required Vote............................................................  19

THE MERGER.................................................................  20
  General..................................................................  20
  Effective Time...........................................................  20
  Conversion of Shares; Procedures for Exchange of Certificates ...........  20
  Background of the Merger ................................................  21
  Recommendation of the Board of Directors; Reasons for the Merger ........  25
  Opinion of Financial Adviser.............................................  26
  Management of Logicon after Merger ......................................  29
  Interests of Certain Persons in the Merger ..............................  29
  Certain Federal Income Tax Consequences .................................  31
  Accounting Treatment.....................................................  32
  Effect on Employee Benefits Plans........................................  32
</TABLE>
 
                                       4
<PAGE>
 
                         TABLE OF CONTENTS--(CONTINUED)
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
  Certain Legal Matters ...................................................  32
  Federal Securities Law Consequences......................................  33
  Stock Exchange Listing...................................................  33
  No Appraisal Rights......................................................  33
  Certain Other Agreements.................................................  34

THE MERGER AGREEMENT.......................................................  35
  General..................................................................  35
  The Merger...............................................................  35
  Effective Time...........................................................  35
  Terms of the Merger......................................................  35
  Fractional Shares........................................................  36
  Surrender and Payment....................................................  36
  Conditions to Consummation of the Merger.................................  37
  Representations and Warranties...........................................  38
  Conduct of Business Pending the Merger...................................  39
  No Solicitation of Transactions..........................................  40
  Employee Benefit Plans...................................................  41
  Pooling of Interests Accounting Treatment................................  41
  Indemnification..........................................................  41
  Certain Other Covenants..................................................  41
  Termination; Fees and Expenses...........................................  42
  Amendment; Waiver........................................................  43

DESCRIPTION OF NORTHROP CAPITAL STOCK......................................  45
  Authorized Capital Stock.................................................  45
  Preferred Stock..........................................................  45
  Common Stock.............................................................  45
  Common Stock Purchase Rights.............................................  45

COMPARISON OF STOCKHOLDER RIGHTS...........................................  46
  General..................................................................  46
  Size and Classification of the Board of Directors........................  46
  Removal of Directors; Filling Vacancies on the Board of Directors........  46
  Stockholder Action by Written Consent....................................  47
  Special Meetings of Stockholders.........................................  47
  Required Vote for Authorization of Certain Actions.......................  47
  Amendment of Corporate Charter and Bylaws................................  48
  Appraisal and Dissenters' Rights.........................................  48
  Limitation on Directors' Liability.......................................  48
  Indemnification of Officers and Directors................................  49
  Cumulative Voting........................................................  49
  Conflict-of-Interest Transactions........................................  49
  Dividends and Other Distributions........................................  49
  Northrop Rights Plan.....................................................  50
  Logicon Rights Plan......................................................  51

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.............  52
  Certain Stockholders of Logicon..........................................  52
  Certain Stockholders of Northrop.........................................  52
</TABLE>
 
 
                                       5
<PAGE>
 
                         TABLE OF CONTENTS--(CONTINUED)
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
OTHER MATTERS..............................................................  52

LEGAL MATTERS..............................................................  52

EXPERTS....................................................................  52

RELATIONSHIP WITH INDEPENDENT PUBLIC ACCOUNTANTS...........................  52

Annex A--Merger Agreement
Annex B--Opinion of Goldman, Sachs & Co.
</TABLE>
 
                                       6
<PAGE>
 
                                    SUMMARY
 
  The following is a brief summary of certain information contained elsewhere
in this Proxy Statement/Prospectus. This summary does not contain a complete
statement of all material information relating to the Merger Agreement and the
Merger and is subject to, and is qualified in its entirety by, the more
detailed information and financial statements contained or incorporated by
reference in this Proxy Statement/Prospectus. Stockholders should read
carefully this Proxy Statement/Prospectus in its entirety. Certain capitalized
terms used in this summary are defined elsewhere in this Proxy
Statement/Prospectus.
 
THE COMPANIES
 
  Northrop and Acquisition. Northrop Grumman Corporation is an advanced
technology company operating in the aircraft and electronics industry segments
of the broadly defined aerospace industry. The aircraft segment includes the
design, development and manufacturing of aircraft and aircraft subassemblies.
The electronics segment includes the design, development, manufacturing and
integration of electronic systems for military and commercial use and the
operation and support of computer systems for scientific and management
information. Acquisition is a wholly owned subsidiary of Northrop and was
incorporated on May 2, 1997. As used herein, the term "Northrop" refers to
Northrop Grumman Corporation and its consolidated subsidiaries, unless the
context otherwise requires. The principal executive offices of Northrop are
located at 1840 Century Park East, Los Angeles, California, 90067, and its
telephone number at such offices is (310) 553-6262. Northrop was incorporated
in California as "Northrop Aircraft, Inc." on March 7, 1939, and subsequently
renamed "Northrop Corporation." Northrop reincorporated under the same name in
Delaware in 1985. Effective May 18, 1994, Northrop was renamed "Northrop
Grumman Corporation."
 
  Logicon. Logicon, Inc. provides advanced technology systems and services to
support national security, civil and industrial needs. As used herein, the term
"Logicon" refers to Logicon, Inc. and its consolidated subsidiaries, unless the
context otherwise requires. The principal executive offices of Logicon are
located at 3701 Skypark Drive, Torrance, California 90505-4794, and its
telephone number at such offices is (310) 373-0220. Logicon was incorporated in
California on April 10, 1961, and reincorporated in Delaware on July 28, 1978.
 
THE SPECIAL MEETING
 
 Time, Place and Date
 
  A Special Meeting of the stockholders of Logicon will be held in the Roman
Room, The Biltmore Hotel, 506 South Grand Avenue, Los Angeles, California,
90071, on Thursday, July 17, 1997, at 10:30 a.m., Pacific Daylight Savings Time
(including any and all adjournments or postponements thereof, the "Special
Meeting").
 
 Purposes of the Special Meeting
 
  At the Special Meeting, holders of Logicon Common Stock will consider and
vote upon a proposal to approve and adopt the Merger Agreement. As a result of
the Merger, Logicon will become a wholly owned subsidiary of Northrop.
Stockholders will also consider and vote upon any other matter that may
properly come before the meeting.
 
 Vote Required; Record Date
 
  The approval and adoption of the Merger Agreement will require approval by
the affirmative vote of the holders of a majority of the outstanding shares of
Logicon Common Stock entitled to vote thereon. Holders of Logicon Common Stock
are entitled to one vote per share. Only holders of Logicon Common Stock at the
close of business on June 6, 1997 (the "Record Date") will be entitled to
notice of and to vote at the Special
 
                                       7
<PAGE>
 
Meeting. See "The Special Meeting." As of the Record Date, directors and
executive officers of Logicon and their affiliates were beneficial owners of
approximately 13% of the outstanding shares of Logicon Common Stock. All of
such persons have advised Logicon that they intend to vote all shares
beneficially owned by them in favor of the Merger Agreement.
 
SURRENDER OF STOCK CERTIFICATES
 
  As soon as practicable after the Effective Time, ChaseMellon Shareholder
Services, L.L.C., or another agent designated by Northrop, in its capacity as
exchange agent for the Merger (the "Exchange Agent"), will send a transmittal
letter to each Logicon stockholder of record at the Effective Time. The
transmittal letter will contain instructions with respect to the surrender of
certificates representing Logicon Common Stock to be exchanged for Northrop
Common Stock and cash in lieu of fractional shares of Northrop Common Stock.
Holders of certificates which prior to the Effective Time represented Logicon
Common Stock will not be entitled to receive any payment of dividends or other
distributions with respect to Northrop Common Stock until such certificates
have been surrendered for certificates representing Northrop Common Stock. See
"The Merger--Conversion of Shares; Procedures for Exchange of Certificates."
 
  STOCKHOLDERS SHOULD NOT FORWARD CERTIFICATES FOR LOGICON COMMON
  STOCK TO THE EXCHANGE AGENT UNTIL THEY HAVE RECEIVED TRANSMITTAL
  LETTERS. STOCKHOLDERS SHOULD NOT RETURN STOCK CERTIFICATES WITH THE
  ENCLOSED PROXY.
 
RECOMMENDATION OF THE BOARD OF DIRECTORS
 
  The Board of Directors believes that the terms of the Merger are fair to and
in the best interests of its stockholders and has unanimously approved the
Merger Agreement and the related transactions. The Board of Directors
unanimously recommends that its stockholders approve and adopt the Merger
Agreement and the transactions contemplated thereby. See "The Merger--
Background of the Merger"; "--Recommendation of the Board of Directors; Reasons
for the Merger"; and "--Interests of Certain Persons in the Merger."
 
THE MERGER
 
 Merger Consideration
 
  In the Merger, each outstanding share of Logicon Common Stock (other than
shares owned by Logicon as treasury stock or by its subsidiaries or by
Northrop, Acquisition or any of their subsidiaries, all of which shall be
canceled) will be automatically converted (subject to certain provisions
described herein with respect to fractional shares of Northrop Common Stock)
into 0.6161 of a fully paid and nonassessable share of Northrop Common Stock
(the "Merger Consideration"). Cash will be paid in lieu of fractional shares of
Northrop Common Stock. Upon consummation of the Merger, Acquisition will be
merged with and into Logicon and Logicon, as the surviving corporation in the
Merger (sometimes referred to hereinafter as the "Surviving Corporation"), will
become a wholly owned subsidiary of Northrop. See "The Merger Agreement--Terms
of the Merger."
 
  At the Effective Time, each outstanding option to purchase shares of Logicon
Common Stock (a "Logicon Stock Option") (a) issued by Logicon pursuant to
Logicon stock option plans or otherwise, in the case of certain individual
nonqualified stock option agreements, or (b) issued by Geodynamics Corporation
and assumed by Logicon pursuant to the Agreement and Plan of Merger dated as of
October 18, 1995, as amended, by and among Logicon, LIN, Inc. and Geodynamics
Corporation, whether vested or unvested, shall be assumed by Northrop. Each
Logicon Stock Option shall be deemed to constitute an option to acquire, on the
same terms and conditions as were applicable under such Logicon Stock Option,
the same number of shares of Northrop Common Stock as
 
                                       8
<PAGE>
 
the holder of such Logicon Stock Option would have been entitled to receive
pursuant to the Merger had such holder exercised such option in full
immediately prior to the Effective Time, at a price per share equal to the
aggregate exercise price for the Logicon Stock Option divided by the number of
whole shares of Northrop Common Stock subject to such Logicon Stock Option.
 
 Conditions to the Merger; Termination
 
  The obligations of Northrop and Logicon to consummate the Merger are subject
to various conditions, including, but not limited to: (a) obtaining Logicon
stockholder approval; (b) the absence of any preliminary or permanent
injunction or other order by any federal or state court which prevents the
consummation of the Merger; (c) approval for listing on the NYSE, subject to
official notice of issuance, of the Northrop Common Stock to be issued in
connection with the Merger; (d) receipt of opinions of counsel at the closing
of the Merger in respect of certain federal income tax consequences of the
Merger; (e) receipt of an accountant's letter to the effect that the Merger
qualifies for "pooling of interests" accounting treatment; and (f) the absence
of changes in the business of either Northrop or Logicon that would have a
material adverse effect on Northrop or Logicon, respectively. See "The Merger
Agreement--Conditions to Consummation of the Merger."
 
  The Merger Agreement may be terminated at any time prior to the Effective
Time, whether before or after approval and adoption of the Merger Agreement by
the stockholders of Logicon: (a) by mutual consent of Northrop, Acquisition and
Logicon; (b) by Northrop and Acquisition or Logicon if (i) the Merger has been
enjoined or otherwise prohibited by a final nonappealable court order, decree
or ruling or any other final governmental action, or (ii) the Merger shall not
have been consummated by September 30, 1997 (provided the terminating party's
failure to fulfill its obligations under the Merger Agreement is not the reason
that the Effective Time shall not have occurred on or before said date). The
Merger Agreement may also be terminated by Northrop and Acquisition in the
event the Board of Directors (a) recommends to stockholders a Superior Proposal
(as defined below) or (b) withdraws or materially weakens its recommendation of
the Merger Agreement or the Merger. The Merger Agreement may also be terminated
under certain other circumstances, see "The Merger Agreement--Termination; Fees
and Expenses."
 
 Listing
 
  It is a condition to the Merger that the shares of Northrop Common Stock to
be issued in the Merger be authorized for listing on the NYSE, subject to
official notice of issuance.
 
 No Appraisal Rights
 
  Under the General Corporation Law of the State of Delaware (the "DGCL"), the
holders of Logicon Common Stock are not entitled to appraisal rights with
respect to the Merger. See "The Merger--No Appraisal Rights;" "Comparison of
Stockholder Rights--Appraisal and Dissenters' Rights."
 
 Governmental Approvals Required
 
  The Merger is subject to the pre-merger notification requirements of the
Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR Act"). On May
15, 1997, Northrop and Logicon each filed a pre-merger notification form with
the Federal Trade Commission (the "FTC") and the Antitrust Division of the
Department of Justice (the "Antitrust Division") under the HSR Act. The waiting
period under the HSR Act with respect to such filings will expire on June 14,
1997, unless additional information is requested. See "The Merger--Certain
Legal Matters."
 
 
                                       9
<PAGE>
 
 Accounting Treatment
 
  The Merger will be treated as a "pooling of interests" for accounting and
financial reporting purposes. The receipt of an opinion from Deloitte & Touche
LLP, the independent auditor of Northrop, confirming that the Merger will be
accounted for as a "pooling of interests" and that it is not aware of any
matters which would prohibit such treatment in connection with the Merger is a
condition to the consummation of the Merger. See "The Merger Agreement--
Conditions to Consummation of the Merger."
 
 Termination Fee; Expenses
 
  Logicon will be required to pay Northrop a fee of $22.5 million (the
"Termination Fee") in the event that Northrop and Acquisition terminate the
Merger Agreement because the Board of Directors recommended a Superior
Proposal, or withdrew or materially weakened its recommendation of the Merger
Agreement following the receipt of an offer by a Third Party (as defined below)
to consummate a Third Party Acquisition (as defined below) involving the
payment of consideration to the stockholders of Logicon with a value in excess
of the Merger Consideration. Logicon will also be required to pay the
Termination Fee in certain circumstances if the Merger Agreement is terminated
(a) by Northrop and Acquisition because of a material breach of any of
Logicon's representations, warranties or covenants which are not cured within a
specified period, and within twelve months thereafter Logicon enters into an
agreement with respect to a Third Party Acquisition or a Third Party
Acquisition occurs (involving any party with whom Logicon had negotiations or
other specified communications prior to the termination of the Merger
Agreement), or (b) by Logicon or Northrop and Acquisition because the Merger
Agreement is not approved by the Logicon stockholders at the Special Meeting at
a time when an offer by a Third Party to consummate a Third Party Acquisition
is outstanding involving the payment of consideration to stockholders of
Logicon in excess of the Merger Consideration and within twelve months
thereafter Logicon enters into an agreement with respect to such Third Party
Acquisition or such Third Party Acquisition occurs. If the Merger Agreement is
terminated by Northrop because the Merger Agreement is not approved by the
Logicon stockholders at the Special Meeting, or because of a material breach of
any of Logicon's representations, warranties or covenants, Logicon shall be
obligated (unless the Termination Fee is required) to reimburse Northrop and
Acquisition for all actual, documented out-of-pocket expenses or fees not to
exceed $3 million incurred by Northrop or Acquisition or on their behalf in
connection with the Merger, in addition to any other remedies that they may
have.
 
  If the Merger Agreement is terminated by Logicon because of a breach of any
of Northrop's or Acquisition's representations, warranties or covenants,
Northrop shall be obligated to reimburse Logicon for all actual, documented
out-of-pocket expenses or fees not to exceed $3 million incurred by Logicon or
on its behalf in connection with the Merger, in addition to any other remedies
that it may have.
 
  In all other cases, Northrop, Acquisition and Logicon will each bear its own
expenses.
 
EFFECTIVE TIME OF THE MERGER
 
  The Merger will become effective upon the filing of a Certificate of Merger
(the "Merger Certificate") with the Secretary of State of the State of Delaware
or such later time as Northrop and Logicon may agree upon and set forth in the
Merger Certificate (the "Effective Time"). The Effective Time is currently
expected to occur on or shortly after the date of the Special Meeting, subject
to approval by the stockholders of Logicon of the matters described herein and
satisfaction or waiver of the conditions precedent to the Merger set forth in
the Merger Agreement. See "The Merger--Effective Time;" "The Merger Agreement--
Effective Time;" and "The Merger Agreement--Conditions to the Consummation of
the Merger."
 
                                       10
<PAGE>
 
 
OPINION OF FINANCIAL ADVISER
 
  Goldman, Sachs & Co., financial adviser to Logicon ("Goldman Sachs"), has
delivered its written opinion to the Board of Directors dated May 4, 1997
stating that, as of such date, the Merger Consideration contemplated by the
Merger is fair to the holders of Logicon Common Stock.
 
  For information on the assumptions made, matters considered and limitations
of the review undertaken by Goldman Sachs, see "The Merger--Opinion of
Financial Adviser." STOCKHOLDERS ARE URGED TO, AND SHOULD, READ IN ITS ENTIRETY
THE FULL TEXT OF THE WRITTEN OPINION OF GOLDMAN SACHS ATTACHED AS ANNEX B TO
THIS PROXY STATEMENT/PROSPECTUS.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
  In considering the recommendation of the Board of Directors with respect to
the Merger Agreement and the transactions contemplated thereby, stockholders
should be aware that certain members of Logicon management and the Board of
Directors have interests in the Merger that are in addition to the interests of
the stockholders of Logicon generally. These interests arise from, among other
things, certain employee benefit and bonus plans, indemnification arrangements
and other matters which Northrop will assume or has agreed to provide after the
Merger. See "The Merger--Interests of Certain Persons in the Merger."
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
  The Merger is intended to qualify as a tax-free reorganization under the
Internal Revenue Code of 1986, as amended, so that no gain or loss would be
recognized by Northrop, Logicon or the stockholders of Logicon, except for gain
or loss attributable to cash received in lieu of fractional shares of Northrop
Common Stock. At the closing of the Merger pursuant to the Merger Agreement
(the "Closing"), O'Melveny & Myers LLP, counsel to Logicon, will have delivered
to Logicon its opinion and Gibson, Dunn & Crutcher LLP, counsel to Northrop,
will have delivered to Northrop its opinion, both opinions dated as of the
Effective Time, that, among other things, the Merger will qualify as a tax-free
reorganization within the meaning of Section 368(a) of the Internal Revenue
Code of 1986, as amended. See "The Merger--Certain Federal Income Tax
Consequences."
 
COMPARATIVE RIGHTS OF STOCKHOLDERS
 
  The rights of stockholders of Logicon currently are governed by the DGCL, the
Certificate of Incorporation of Logicon, as amended (the "Logicon
Certificate"), the Bylaws of Logicon, as amended (the "Logicon Bylaws"), and
the Stockholder Rights Plan dated as of April 9, 1990 between Logicon and
ChaseMellon Shareholder Services, L.L.C., as successor to First Interstate
Bank, N.A. (the "Logicon Rights Agreement"). Upon consummation of the Merger,
stockholders of Logicon will become stockholders of Northrop, and their rights
as stockholders of Northrop will be governed by the DGCL, the Restated
Certificate of Incorporation of Northrop (the "Northrop Certificate"), the
Bylaws of Northrop, as amended (the "Northrop Bylaws"), and the Northrop Rights
Agreement (as defined below). For a discussion of various differences between
the rights of stockholders of Logicon and the rights of stockholders of
Northrop, see "Comparison of Stockholder Rights."
 
COMPARATIVE PER SHARE PRICES
 
  On May 2, 1997, the closing prices of Northrop Common Stock and Logicon
Common Stock as reported on the NYSE Composite Transactions reporting system
were $87 per share and $40 3/8 per share, respectively. The public announcement
of the Merger Agreement occurred prior to the commencement of trading on
Monday, May 5, 1997. On June 6, 1997, prior to the printing of this Proxy
Statement/Prospectus, the closing prices of Northrop Common Stock and Logicon
Common Stock, as reported on the NYSE Composite Transactions reporting system
were $83 per share and $50 5/8 per share, respectively. See "Price Range of
Common Stock and Dividend Information."
 
                                       11
<PAGE>
 
 
CERTAIN OTHER AGREEMENTS
 
  Persons who may be deemed to be affiliates of Logicon have executed
Affiliates' Letters containing representations about such persons' intentions
with respect to the holding of shares of Northrop Common Stock to be received
in the Merger and certain restrictions on resale of such shares. Persons who
may be deemed to be affiliates of Northrop have also executed Affiliates'
Letters containing representations about such persons' intentions with respect
to the holding of shares of Northrop Common Stock and certain restrictions on
resale of such shares. The representations and restrictions on resale are
intended to preserve the characterization of the Merger for federal income tax
purposes as a reorganization, to comply with the requirements for pooling of
interests accounting treatment and to comply with restrictions on resale of
securities imposed by federal securities laws.
 
SELECTED HISTORICAL CONSOLIDATED COMBINED FINANCIAL DATA
 
  The following tables present selected historical financial data of Northrop
and Logicon, and selected unaudited pro forma combined financial data after
giving effect to the Merger under the pooling of interests method of accounting
for business combinations. Northrop's historical consolidated financial data
for each of the annual periods presented has been extracted from its audited
historical consolidated financial statements previously filed with the
Commission. Logicon's historical consolidated financial data for each of the
annual periods presented also has been extracted from its consolidated
financial statements previously filed with the Commission. Historical
consolidated financial data of Northrop for interim periods presented has been
extracted from unaudited historical consolidated financial statements
previously filed with the Commission.
 
  The following information should be read in conjunction with the historical
financial statements of Northrop and Logicon incorporated by reference in this
Proxy Statement/Prospectus.
 
                                       12
<PAGE>
 
                          NORTHROP GRUMMAN CORPORATION
 
                SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
                      (IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                         THREE MONTHS ENDED               FISCAL YEAR ENDED
                         ------------------- --------------------------------------------
                         MARCH 31, MARCH 31, DEC. 31, DEC. 31, DEC. 31, DEC. 31, DEC. 31,
                           1997      1996      1996     1995     1994     1993     1992
                         --------- --------- -------- -------- -------- -------- --------
<S>                      <C>       <C>       <C>      <C>      <C>      <C>      <C>
STATEMENT OF INCOME DA-
 TA:
  Net sales.............  $ 1,964   $ 1,603  $ 8,071  $ 6,818  $ 6,711  $ 5,063  $ 5,550
  Net income............       75        61      234      252       35       96      121
  Earnings per share....     1.30      1.23     4.33     5.11      .72     1.99     2.56
  Weighted average
   common shares
   outstanding..........     58.0      49.6     54.0     49.4     49.1     48.1     47.2
  Cash dividends per
   common share.........  $   .40   $   .40  $  1.60  $  1.60  $  1.60  $  1.60  $  1.20
BALANCE SHEET DATA:
  Total assets..........  $ 9,578   $ 9,495  $ 9,422  $ 5,455  $ 6,047  $ 2,939  $ 3,162
  Total debt............    3,378     4,201    3,378    1,372    1,934      160      510
  Shareholders' equity..    2,184     1,505    2,128    1,459    1,290    1,322    1,254
</TABLE>
 
                                 LOGICON, INC.
 
                SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
                      (IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                              FISCAL YEAR ENDED
                              -------------------------------------------------
                              MARCH 31, MARCH 31, MARCH 31, MARCH 31, MARCH 31,
                                1997      1996      1995      1994      1993
                              --------- --------- --------- --------- ---------
<S>                           <C>       <C>       <C>       <C>       <C>
STATEMENT OF INCOME DATA:
  Contract revenues..........   $ 563     $ 474     $ 342     $ 318     $ 324
  Earnings before cumulative
   effect of accounting
   change(a).................      33        25        20        20        15
  Earnings per share before
   cumulative effect of
   accounting change.........    2.29      1.78      1.37      1.36      1.02
  Weighted average common
   shares outstanding(b).....    14.3      14.2      14.2      15.0      15.1
  Cash dividends per common
   share.....................   $ .23     $ .19     $ .16     $ .14     $ .12
BALANCE SHEET DATA:
  Total assets...............   $ 231     $ 193     $ 152     $ 129     $ 120
  Total debt.................      -         -         -         -         -
  Shareholders' equity.......     163       136       108        98        89
</TABLE>
- --------
(a) Effective April 1, 1993, Logicon prospectively adopted SFAS No. 109,
    "Accounting for Income Taxes."
(b) Logicon Common Stock was split two-for-one in September 1995, and
    accordingly all share data has been retroactively restated.
 
                                       13
<PAGE>
 
 
SELECTED UNAUDITED PRO FORMA COMBINED FINANCIAL DATA
 
  The following unaudited pro forma combined financial data give effect to the
Merger at the exchange ratio of 0.6161 share of Northrop Common Stock for each
share of Logicon Common Stock using the pooling of interests method of
accounting for business combinations. The unaudited pro forma combined
financial data are not necessarily indicative of future operations or the
actual results that would have occurred had the Merger been consummated at the
beginning of the periods presented.
 
  The following unaudited pro forma combined statement of income data for the
three months ended March 31, 1997 and 1996 and each of the years ended December
31, 1996, 1995 and 1994 assumes that the Merger occurred at the beginning of
the periods presented. The following unaudited pro forma combined balance sheet
data as of March 31, 1997 assumes the Merger occurred as of that date.
 
  The selected unaudited pro forma combined financial data has been presented
for illustrative purposes only and are not necessarily indicative of the
operating results or financial position that would have occurred or that will
occur after consummation of the Merger.
 
              SELECTED UNAUDITED PRO FORMA COMBINED FINANCIAL DATA
                      (IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                 THREE MONTHS ENDED      FISCAL YEAR ENDED
                                 ------------------- --------------------------
                                 MARCH 31, MARCH 31, DEC. 31, DEC. 31, DEC. 31,
                                   1997      1996      1996     1995     1994
                                 --------- --------- -------- -------- --------
<S>                              <C>       <C>       <C>      <C>      <C>
STATEMENT OF INCOME DATA:(a)
  Net sales.....................  $ 2,119   $ 1,731  $ 8,607  $ 7,272  $ 7,025
  Net income....................       85        68      264      277       53
  Earnings per share............     1.28      1.17     4.22     4.79      .92
  Weighted average common shares
   outstanding..................     66.6      58.2     62.6     57.8     57.6
<CAPTION>
                                 MARCH 31,
                                   1997
                                 ---------
<S>                              <C>       
BALANCE SHEET DATA:
  Total assets..................  $ 9,809
  Total debt....................    3,378
  Shareholders' equity..........    2,347
</TABLE>
- --------
(a) The unaudited pro forma combined financial data has been prepared utilizing
    Northrop's year end which is December 31. Logicon's fiscal year end is
    March 31; however, for presentation of unaudited pro forma combined
    financial data, the historical consolidated financial data of Logicon has
    been recast to reflect a December 31 year end.
 
COMPARATIVE PER SHARE DATA
 
  Set forth below are certain per common share data of Northrop and Logicon on
an historical basis, an unaudited pro forma basis for Northrop, and an
equivalent unaudited pro forma basis for Logicon. The unaudited Northrop pro
forma basis was derived by giving effect to the Merger under the pooling of
interests method of accounting for business combinations. The equivalent
unaudited pro forma data for Logicon was calculated by multiplying the
unaudited Northrop per common share data by an exchange ratio of 0.6161 share
of Northrop Common Stock for each share of Logicon Common Stock.
 
  This information should be read in conjunction with the historical financial
statements of Northrop and Logicon incorporated by reference in this Proxy
Statement/Prospectus.
 
                                       14
<PAGE>
 
 
                           COMPARATIVE PER SHARE DATA
 
<TABLE>
<CAPTION>
                                 THREE MONTHS ENDED     TWELVE MONTHS ENDED
                                 ------------------- --------------------------
                                 MARCH 31, MARCH 31, DEC. 31, DEC. 31, DEC. 31,
                                   1997      1996      1996     1995     1994
                                 --------- --------- -------- -------- --------
<S>                              <C>       <C>       <C>      <C>      <C>
Northrop
  Historical Per Common Share
   Data:
    Net income(a)...............  $ 1.30    $ 1.23    $ 4.33   $ 5.11   $  .72
    Book value(b)...............   37.65     30.30     36.74    29.50    26.20
    Cash dividends..............     .40       .40      1.60     1.60     1.60

Logicon
  Historical Per Common Share
   Data:
    Net income(a)...............  $  .65    $  .51    $ 2.15   $ 1.71   $ 1.25
    Book value(b)...............   11.67      9.72     11.06     9.20     7.53
    Cash dividends..............     .06       .05       .22      .18      .16

Northrop
  Unaudited Pro Forma Per Common
   Share Data:
    Net income(a)...............  $ 1.28    $ 1.17    $ 4.22   $ 4.79   $  .92
    Book value(b)...............   35.22               34.30
    Cash dividends..............     .40       .40      1.60     1.60     1.60

Logicon
  Equivalent Unaudited Pro Forma
   Per Common Share Data:
    Net income(a)...............  $  .79    $  .72    $ 2.60   $ 2.95   $  .57
    Book value(b)...............   21.70               21.13
    Cash dividends..............     .25       .25       .99      .99      .99
</TABLE>
- --------
(a)  Per share amounts for net income were computed based on the weighted
     average shares outstanding during the period.
 
(b)  Per share amounts for book value were computed based on the number of
     shares outstanding as of the end of the period presented.
 
 
                                       15
<PAGE>
 
                              GENERAL INFORMATION
 
  This Proxy Statement/Prospectus is being furnished to the stockholders of
Logicon in connection with the solicitation of proxies by and on behalf of the
Board of Directors, for use at the Special Meeting. The Special Meeting will
be held at 10:30 a.m., Pacific Daylight Savings Time, on Thursday, July 17,
1997 in the Roman Room, The Biltmore Hotel, 506 South Grand Avenue, Los
Angeles, California, 90071. This Proxy Statement/Prospectus and the related
form of proxy for Logicon are first being mailed to Logicon stockholders on or
about June 13, 1997.
 
                                 THE COMPANIES
 
NORTHROP
 
  Northrop is an advanced technology company operating in the aircraft and
electronics industry segments of the broadly defined aerospace industry. The
aircraft segment includes the design, development and manufacturing of
aircraft and aircraft subassemblies. The electronics segment includes the
design, development, manufacturing and integration of electronic systems for
military and commercial use and the operation and support of computer systems
for scientific and management information. Northrop was incorporated in
California as "Northrop Aircraft, Inc." on March 7, 1939, and subsequently
renamed "Northrop Corporation." Northrop reincorporated under the same name in
Delaware in 1985. Effective May 18, 1994, Northrop was renamed "Northrop
Grumman Corporation."
 
ACQUISITION
 
  Acquisition is a wholly owned subsidiary of Northrop, and was incorporated
in Delaware on May 2, 1997. Acquisition conducted no business prior to
entering into the Merger Agreement.
 
LOGICON
 
  Logicon provides advanced technology systems and services to support
national security, civil and industrial needs. Logicon was incorporated in
California on April 10, 1961, and reincorporated in Delaware on July 28, 1978.
 
 
                                      16
<PAGE>
 
             PRICE RANGE OF COMMON STOCK AND DIVIDEND INFORMATION
 
COMMON STOCK
 
  Northrop Common Stock is traded on the NYSE and PE under the symbol "NOC"
and Logicon Common Stock is traded on the NYSE under the symbol "LGN."
Following the Merger, Northrop Common Stock will continue to be traded on the
NYSE and the PE. Following the Merger, Logicon Common Stock will cease to be
traded on the NYSE, and there will be no further market for such stock.
 
  The table below sets forth the high and low intra-day prices for Northrop
Common Stock and Logicon Common Stock as reported on the NYSE Composite
Transactions reporting system for the periods indicated (quarters are based on
a calendar year).
 
<TABLE>
<CAPTION>
                                                   NORTHROP        LOGICON
                                                 ------------- ----------------
                                                  HIGH   LOW    HIGH     LOW
                                                 ------ ------ ------- --------
   <S>                                           <C>    <C>    <C>     <C>
   1995
   First Quarter................................ 49 3/4 39 3/4 17 3/16 14 15/16
   Second Quarter............................... 54     47     23 1/8  16 7/8
   Third Quarter................................ 62 5/8 51 7/8 32 1/8  21 11/16
   Fourth Quarter............................... 64 1/4 56     29 1/4  21 1/2

   1996
   First Quarter................................ 67 3/8 58 3/8 33 3/4  25 1/4
   Second Quarter............................... 69 1/4 57 3/4 32 1/4  27
   Third Quarter................................ 80 1/4 63 3/4 35 1/4  25 1/4
   Fourth Quarter............................... 84 1/4 76 3/8 43 3/8  35

   1997
   First Quarter................................ 82 5/8 71 3/8 38 7/8  33 7/8
   Second Quarter (prior to Merger announcement
    on 05/05)................................... 87 1/2 71 7/8 40 3/8  33 3/4
   Second Quarter (subsequent to Merger 
    announcement through 06/06)................. 86 7/8 82 1/4 50 7/8  49 3/4
</TABLE>
 
  The following tables set forth the high, low and closing prices as reported
on the NYSE Composite Transactions reporting system for Northrop Common Stock
and Logicon Common Stock on May 2, 1997, the last trading day prior to the
announcement of the Merger, and on June 6, 1997, the last trading day prior to
the printing of this Proxy Statement/Prospectus.
 
<TABLE>
<CAPTION>
                                                                       LOGICON
                                                                      ----------
    MAY 2, 1997                                      NORTHROP LOGICON EQUIVALENT
    -----------                                      -------- ------- ----------
   <S>                                               <C>      <C>     <C>
     High...........................................  87 1/2  40 3/8      52
     Low............................................  84 1/4  39 1/4      52
     Last...........................................  87      40 3/8      52
<CAPTION>
                                                                       LOGICON
                                                                      ----------
    JUNE 6, 1997                                     NORTHROP LOGICON EQUIVALENT
    ------------                                     -------- ------- ----------
   <S>                                               <C>      <C>     <C>
     High...........................................  83 3/8  50 7/8      52
     Low............................................  82 5/8  50 1/4      52
     Last...........................................      83  50 5/8      52
</TABLE>
 
                                      17
<PAGE>
 
DIVIDEND POLICY
 
  Dividends on Northrop Common Stock are payable at the discretion of the
Board of Directors of Northrop (the "Northrop Board of Directors") out of
funds legally available therefor. Future dividend policy will depend on
earnings, capital requirements, financial condition and other factors
considered relevant by Northrop's Board of Directors.
 
  Dividends on Logicon Common Stock are payable at the discretion of the Board
of Directors out of funds legally available. Declaration of dividends is
dependent upon Logicon's current and projected earnings, current and projected
cash balances, financial condition and other factors considered relevant by
the Board of Directors.
 
                                      18
<PAGE>
 
                              THE SPECIAL MEETING
 
PURPOSE OF THE SPECIAL MEETING
 
  At the Special Meeting, holders of Logicon Common Stock will consider and
vote upon a proposal to approve and adopt the Merger Agreement and such other
matters as may properly be brought before the meeting.
 
  THE BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT AND
RECOMMENDS A VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AGREEMENT. THE BOARD
OF DIRECTORS BELIEVES THAT THE MERGER IS FAIR TO AND IN THE BEST INTERESTS OF
THE STOCKHOLDERS OF LOGICON.
 
RECORD DATE; VOTING RIGHTS; PROXIES
 
  The Board of Directors has fixed the close of business on June 6, 1997 as
the Record Date for determining holders entitled to notice of and to vote at
the Special Meeting.
 
  As of the Record Date, there were 14,013,341 shares of Logicon Common Stock
issued and outstanding, each of which entitles the holder thereof to one vote.
All shares of Logicon Common Stock represented by properly executed proxies
will, unless such proxies have been previously revoked, be voted in accordance
with the instructions indicated in such proxies. IF NO INSTRUCTIONS ARE
INDICATED, SUCH SHARES OF LOGICON COMMON STOCK WILL BE VOTED IN FAVOR OF THE
MERGER. Logicon does not know of any matters other than as described in the
Notice of Special Meeting of Stockholders that are to come before the Special
Meeting. If any other matter or matters are properly presented for action at
the Special Meeting, the persons named in the enclosed form of proxy and
acting thereunder will have the discretion to vote on such matters in
accordance with their best judgment, unless such authorization is withheld. A
stockholder who has given a proxy may revoke it at any time prior to its
exercise by giving written notice thereof to the Secretary of Logicon, by
signing and returning a later dated proxy or by voting in person at the
Special Meeting; however, mere attendance at the Special Meeting will not in
and of itself have the effect of revoking the proxy.
 
  Abstentions and broker non-votes are treated as present for quorum purposes,
but are not counted as voted for purposes of determining the approval of any
matter submitted to the stockholders for a vote. The term "broker non-votes"
refers to shares held by a broker in street name which are present by proxy
but are not voted on a matter pursuant to rules prohibiting brokers from
voting on non-routine matters, such as approval and adoption of the Merger
Agreement, without instructions from the beneficial owner of the shares.
 
SOLICITATION OF PROXIES
 
  In addition to solicitation by mail, the directors, officers and employees
of Logicon may solicit proxies from Logicon stockholders by personal
interview, telephone, telegram or otherwise. Logicon will bear its own cost of
solicitation of proxies. Brokerage houses, fiduciaries, nominees and others
will be reimbursed for their reasonable charges and out-of-pocket expenses in
forwarding proxy materials to beneficial owners of stock held in their names.
 
QUORUM
 
  The presence in person or by properly executed proxy of holders of a
majority of the issued and outstanding shares of Logicon Common Stock entitled
to vote thereat is necessary to constitute a quorum at the Special Meeting.
 
REQUIRED VOTE
 
  The approval of the Merger Agreement and the transactions contemplated
thereby requires the affirmative vote of the holders of a majority of the
outstanding shares of Logicon Common Stock.
 
  THE MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING ARE OF GREAT
  IMPORTANCE TO STOCKHOLDERS. ACCORDINGLY, STOCKHOLDERS ARE URGED TO READ
  AND CAREFULLY CONSIDER THE INFORMATION PRESENTED IN THIS PROXY
  STATEMENT/PROSPECTUS, AND TO COMPLETE, DATE, SIGN AND PROMPTLY RETURN
  THE ENCLOSED PROXY IN THE ENCLOSED ENVELOPE.
 
                                      19
<PAGE>
 
                                  THE MERGER
 
  This section of the Proxy Statement/Prospectus and the next section of the
Proxy Statement/Prospectus entitled "The Merger Agreement" describe certain
aspects of the proposed Merger. To the extent that it relates to the Merger
Agreement, the following description does not purport to be complete and is
qualified in its entirety by reference to the Merger Agreement which is
attached as Annex A to this Proxy Statement/Prospectus. All stockholders are
urged to read the Merger Agreement in its entirety.
 
GENERAL
 
  The Merger Agreement provides that the Merger will be consummated if the
approval of the Logicon stockholders required therefor is obtained and all
other conditions to the Merger are satisfied or waived. Upon consummation of
the Merger, Acquisition will be merged with and into Logicon and Logicon, as
the Surviving Corporation, will become a wholly owned subsidiary of Northrop.
 
  Upon consummation of the Merger, each outstanding share of Logicon Common
Stock (other than (a) shares held by Logicon as treasury stock or by its
subsidiaries and (b) shares held by Northrop, Acquisition or any of their
subsidiaries, all of which shall be canceled) will be automatically converted
into 0.6161 of a fully paid and nonassessable share of Northrop Common Stock,
except that cash will be paid in lieu of fractional shares of Northrop Common
Stock.
 
  Based upon the capitalization of Northrop and Logicon as of June 6, 1997,
the stockholders of Logicon will own approximately 15% of the outstanding
Northrop Common Stock following consummation of the Merger.
 
EFFECTIVE TIME
 
  The Effective Time of the Merger will occur upon the filing of a Merger
Certificate with the Secretary of State of the State of Delaware or at such
later time as Northrop and Logicon may agree upon and set forth in the Merger
Certificate. The filing of the Merger Certificate will occur on a date
specified by the parties which is no later than the second business day after
satisfaction of the latest to occur of certain of the conditions in the Merger
Agreement (the "Closing Date"). The Merger Agreement may be terminated by
Northrop and Acquisition or Logicon if the Merger shall not have been
consummated on or before September 30, 1997 and under certain other
conditions. See "The Merger Agreement--Conditions to the Consummation of the
Merger" and "The Merger Agreement--Termination; Fees and Expenses."
 
CONVERSION OF SHARES; PROCEDURES FOR EXCHANGE OF CERTIFICATES
 
  The conversion of Logicon Common Stock into the right to receive Northrop
Common Stock will occur automatically at the Effective Time.
 
  As soon as reasonably practicable after the Effective Time, a transmittal
letter will be mailed by the Exchange Agent to each holder of record of
Logicon Common Stock, informing such stockholder of the procedures to follow
in forwarding his or her Logicon stock certificates to the Exchange Agent.
Upon receipt of such Logicon stock certificates and transmittal letter, the
Exchange Agent will deliver whole shares of Northrop Common Stock to such
stockholder and cash in lieu of any fractional share of Northrop Common Stock
pursuant to the terms of the Merger Agreement and in accordance with the
transmittal letter, together with any dividends or other distributions to
which such stockholder is entitled.
 
  If any issuance of shares of Northrop Common Stock in exchange for shares of
Logicon Common Stock is to be made to a person other than the Logicon
stockholder in whose name the certificate is registered at the Effective Time,
it will be a condition of such exchange that the certificate so surrendered be
properly endorsed or otherwise in proper form for transfer and that the
Logicon stockholder requesting such issuance either pay any transfer or other
tax required or establish to the satisfaction of Northrop that such tax has
been paid or is not payable.
 
                                      20
<PAGE>
 
  After the Effective Time, there will be no further transfers of Logicon
Common Stock on the stock transfer books of Logicon. If a certificate
representing Logicon Common Stock is presented for transfer, it will be
canceled and a certificate representing the appropriate number of whole shares
of Northrop Common Stock and cash in lieu of fractional shares of Northrop
Common Stock and any dividends and distributions will be issued in exchange
therefor.
 
  After the Effective Time and until surrendered, shares of Logicon Common
Stock will be deemed to represent only the right to receive upon such
surrender a certificate representing the number of whole shares of Northrop
Common Stock into which such shares of Logicon Common Stock shall have been
converted and cash in lieu of any fractional shares of Northrop Common Stock
as contemplated by the Merger Agreement. No dividends or other distributions,
if any, payable to holders of Northrop Common Stock will be paid to the
holders of certificates for shares of Logicon Common Stock until such
certificates are surrendered. Upon surrender of such certificates, all
declared dividends and distributions which shall have become payable in
respect of a record date after the Effective Time will be paid to the holder
of record of the whole shares of Northrop Common Stock represented by the
certificate issued in exchange therefor, without interest.
 
  STOCKHOLDERS SHOULD NOT FORWARD STOCK CERTIFICATES TO THE EXCHANGE
  AGENT UNTIL THEY HAVE RECEIVED TRANSMITTAL LETTERS. STOCKHOLDERS SHOULD
  NOT RETURN STOCK CERTIFICATES WITH THE ENCLOSED PROXY.
 
BACKGROUND OF THE MERGER
 
  In June 1996, John R. Woodhull, the Chairman and Chief Executive Officer of
Logicon, suggested to the Board of Directors that Logicon explore its
strategic alternatives, including the possibility of combining with a larger
company. After discussing the possibilities of such a transaction and the
potential for enhancing stockholder value, the Board of Directors authorized
Mr. Woodhull to initiate the process of selecting and employing an investment
banking firm to advise the Board of Directors and management with respect to
such possibilities, and to assist in identifying, approaching and negotiating
with other companies which might be interested in such a transaction.
 
  At the Board of Directors meeting on August 5, 1996, Mr. Woodhull reported
on his discussions with investment banking firms. Thereafter, after further
consultation by Mr. Woodhull with members of the Board of Directors, Logicon
entered into an agreement with Goldman, Sachs & Co. in September 1996 to
represent Logicon as its financial adviser in connection with an analysis of
Logicon, the opportunities for enhancing stockholder value, and matters
relating to a possible business combination with another company. At the Board
of Directors meeting on October 4, 1996, Mr. Woodhull reported on the
preliminary discussion with Goldman Sachs concerning the process that would be
followed.
 
  On November 14, 1996, Mr. Woodhull together with other corporate officers,
met with representatives of Goldman Sachs for a general discussion of the
assignment being undertaken by Goldman Sachs, the proposed process to be
followed, factors relating to the defense and information technology
industries in which the company operates, factors relating to other business
combinations or possible business combinations within those industries, and
the time frames within which it might or might not be appropriate for the
company to seek the commencement of discussions with other defense industry or
information technology industry participants. The Goldman Sachs
representatives discussed various industry-wide data relating to companies in
the defense industry and comparative data relating to Logicon.
 
  At the Board of Directors meetings on December 13, 1996 and February 17,
1997, there were further discussions about strategic alternatives open to the
Company. Together, Goldman Sachs and Logicon formed a list of candidate
companies to be contacted and Goldman Sachs conducted an analysis of the
strategic position and financial capacity of each. In late March 1997, Goldman
Sachs made contact with several companies which had been identified as
potentially having an interest in Logicon, and determined on a preliminary
basis the
 
                                      21
<PAGE>
 
identities of those companies which, in its opinion, merited further
consideration and analysis. Northrop was among the companies contacted by
Goldman Sachs. On or about March 17, 1997, Kent Kresa, Chairman, President and
Chief Executive Officer of Northrop, placed a call to Mr. Woodhull, during
which Mr. Woodhull indicated that, in light of Northrop's interest in Logicon
and Logicon's own strategic considerations and Logicon's arrangement with
Goldman Sachs, Northrop should work through Goldman Sachs to pursue a
potential transaction.
 
  During April 1997, Logicon opened a data room on premises removed from its
corporate headquarters, to provide a place where interested persons might
perform due diligence on various documents and financial information regarding
Logicon without disrupting its staff or creating a possibility of rumors about
a potential transaction. During this time, Goldman Sachs arranged for meetings
between Mr. Woodhull, Ralph L. Webster, the Chief Financial Officer of
Logicon, and representatives of potentially interested companies, including a
meeting with representatives of Northrop that occurred on April 7th.
 
  During the April 7th meeting, representatives of Northrop and of Salomon
Brothers Inc, financial adviser to Northrop ("Salomon Brothers"), met with Mr.
Woodhull, another member of the senior management of Logicon and
representatives of Goldman Sachs. Mr. Woodhull discussed the strategic
alternatives being considered by Logicon, which included a business
combination or continuing as a stand-alone company, and presented orally a
strategic overview of Logicon's businesses. The representatives of Northrop in
turn discussed generally the nature of Northrop's strategic interest. A
representative of Goldman Sachs indicated that Logicon was in discussions with
other parties with respect to possible transactions and outlined orally the
process that Logicon would undertake to examine its strategic options. The
process outlined included review of contents of the data room and a
presentation by senior management of Logicon. At the conclusion of the
meeting, the representatives of Northrop reiterated their interest in
continuing discussions.
 
  On April 16, 1997, a Northrop team reviewed Logicon's public documents, its
internal policies and procedures and its long-range plan in the data room. Mr.
Woodhull and other senior managers of Logicon also presented to members of
Northrop's senior management an overview of each of Logicon's principal
business areas. At the conclusion of the management presentation, Northrop
again indicated its interest in pursuing further discussions.
 
  A representative of Goldman Sachs called Albert F. Myers, Corporate Vice
President and Treasurer of Northrop, and a representative of Salomon Brothers
on April 17th and suggested that a meeting be scheduled for the week of April
21st with the senior management of Logicon to discuss Northrop's preliminary
indication of value and proposed structure for a potential business
combination. Goldman Sachs indicated that Logicon expected to receive
preliminary expressions of interest from several parties and would provide
more detailed oral and written diligence materials to one or more parties
during the week of April 28th. The schedule set forth by Goldman Sachs in the
April 17th phone call was reiterated in a letter from Goldman Sachs to Mr.
Myers dated April 18, 1997.
 
  On April 24th, a representative of Salomon Brothers told a representative of
Goldman Sachs that, although Northrop remained interested in continuing
discussions, the travel schedules of key members of management and other
considerations would prevent Northrop from being in a position to present a
preliminary expression of interest in accordance with the schedule set out in
such letter. The representative of Salomon Brothers proposed that the senior
management of Northrop and Logicon meet on Monday, April 28th in order for
Northrop to describe its level of interest in pursuing a business combination
with Logicon.
 
  On April 25, 1997, a meeting of the Board of Directors was held at which
Goldman Sachs and Mr. Woodhull briefed the Board of Directors about all
activities which had been conducted with respect to identifying candidates for
a possible business combination with Logicon. The Goldman Sachs representative
and Mr. Woodhull advised that, after a detailed analysis, a short list of
seven possible candidates was compiled and the companies were contacted. The
Goldman Sachs representative indicated that all the seven companies on the
short list had given at least some level of consideration to a business
combination with Logicon. Each of the
 
                                      22
<PAGE>
 
seven companies was discussed in further detail, identifying the reasons why
four of them did not choose to pursue a possible transaction. The Goldman
Sachs representative and Mr. Woodhull described meetings with the top
executives of the remaining three companies, and the due diligence that had
been performed by each of them to date. The Goldman Sachs representative
reported that two of these three companies had given preliminary indications
as to terms and price, one of them being interested in a stock-for-stock
transaction and the other being interested in a cash purchase, both within a
narrow price range. The Goldman Sachs representative continued that the third
candidate, Northrop, was scheduled for a meeting early in the following week,
and that he expected to receive a specific proposal from Northrop on or about
April 28, 1997. The Board of Directors had an extensive discussion about
whether or not Logicon should adopt an exclusive dealing posture at this
point, particularly if the Northrop proposal was more attractive than the
other proposals on the table, and concluded that, for the time being, Logicon
and its advisers should continue to pursue the interest of the other two
companies. The Goldman Sachs representative concurred with this conclusion,
and discussed the ability of each of the candidates to improve its offer. The
Board of Directors agreed that one of the strategic alternatives open to
Logicon was to remain independent and that the process of selecting the final
and best company with which to pursue a transaction would include the
consideration of whether or not such company offered better value to the
stockholders than the projected share value on the basis of the business plan
of the company as an independent entity while taking into account the relative
degree of risk.
 
  Mr. Kresa and other representatives of Northrop and of Salomon Brothers, and
Mr. Woodhull, another member of senior management of Logicon and
representatives of Goldman Sachs, met on April 28th. During that meeting,
Northrop provided both an oral and written overview of its strategic
objectives and presented two alternative proposals for a business combination
between Northrop and Logicon: a stock-for-stock transaction valued at $48.00
per share of Logicon Common Stock or an all-cash transaction at $50.00 per
share. Northrop also provided draft agreements for both an all-cash
transaction and an all-stock transaction. The representatives of Northrop
stressed that Northrop strongly desired that Logicon, its management and its
operations remain intact after the proposed transaction. The representatives
of Northrop also indicated that the offers were contingent on Logicon entering
into exclusive negotiations with Northrop on an accelerated schedule. Northrop
suggested that the full due diligence review contemplated by Logicon might
lead to a diminution in the value of Logicon to Northrop because of the
disclosure of proprietary and competitive information to other interested
parties.
 
  On April 29th, a representative from Goldman Sachs called a representative
from Salomon Brothers and reviewed the principal components of the two
proposals made by Northrop and asked for clarification of certain of the
terms, including the rationale for the difference in the all-cash price and
the all-stock price and the absence of an exchange rate adjustment mechanism
to protect the parties against fluctuations in the relative prices of Northrop
Common Stock and Logicon Common Stock. The Goldman Sachs representative
indicated that, at that point, Mr. Woodhull's preference was for an all-cash
transaction because of the price fluctuation risk associated with the all-
stock transaction. Goldman Sachs informed Salomon Brothers that the Board of
Directors was scheduled to meet later in the week to review the preliminary
expressions of interest that had been received. During a second call later in
the day on April 29th, the Goldman Sachs representative told the
representative of Salomon Brothers that the Northrop proposal did not persuade
Logicon to discontinue its discussions with other parties.
 
  On April 30th, Mr. Myers and other members of management of Northrop, met in
the offices of Goldman Sachs with Mr. Webster and a representative of Goldman
Sachs. Mr. Webster provided a preview of results for the fiscal year ended
March 31, 1997 and a detailed review of accounting policies of Logicon. After
considering the financial and accounting information provided at the April
30th meeting, Northrop determined that an equity-based offer of $52.00 per
share would be appropriate. A representative of Salomon Brothers spoke with a
representative of Goldman Sachs late on April 30th to convey a revised
proposal for a stock-for-stock transaction valued at $52.00 per share.
Northrop's offer included an adjustment to the exchange rate so that the
$52.00 per share value would be maintained if the market price of Northrop
Common Stock increased by up to 15% or decreased by up to 10% from its $83.50
per share closing price on that same day.
 
 
                                      23
<PAGE>
 
  On May 1st, Mr. Kresa called Mr. Woodhull to indicate that he felt that
Northrop had made its best offer and that he believed that the exchange rate
adjustment mechanism addressed Mr. Woodhull's concerns regarding the risk
associated with a stock-for-stock transaction. Mr. Kresa also reiterated that
Northrop was prepared to move expeditiously in negotiating and signing the
definitive documentation and that this accelerated process would lead to
greater certainty and less disruption of Logicon's business.
 
  On May 1st, the Board of Directors met by telephone with representatives of
Goldman Sachs participating. A representative of Goldman Sachs summarized the
events of the past few days and said that Northrop was now proposing a stock-
for-stock transaction at a value of $52.00 per share of Logicon Common Stock,
subject to a "collar" which would preserve the $52.00 value through a range of
appreciation and depreciation in the current market value of Northrop Common
Stock to be negotiated, but with no adjustment beyond that range. He reported
that Northrop wished to move very quickly and exclusively, and was willing to
go forward only if Logicon ceased to have negotiations with other interested
parties. He said that Northrop wished to sign an agreement as soon as possible
and said that the previous proposal by Northrop for a cash transaction had
been withdrawn and that Northrop wished to go forward only on the basis of the
stock-for-stock transaction. The Board of Directors discussed at length the
value of the proposal to Logicon stockholders compared to similar
transactions. The representative of Goldman Sachs was asked to report on the
continuing interest of the two other interested parties and the possibility
that either or both of them might be willing to make an offer as attractive as
the Northrop offer. The Goldman Sachs representative summarized his most
recent discussions with the other two interested parties, each of whom had
given indications as to the nature of its interest, and that these indications
were less attractive than the Northrop proposal. At the conclusion of that
discussion, the Board of Directors instructed the management and Goldman Sachs
to proceed with the Northrop proposal.
 
  Late on May 1st, the representative of Goldman Sachs called representatives
of Salomon Brothers and indicated that, provided that Northrop agreed to an
adjustment in the exchange rate in the event of up to 10% appreciation or
depreciation in the market price of Northrop Common Stock, Logicon was
prepared to accept Northrop's $52.00 per share offer. The representative of
Salomon Brothers indicated that Northrop would proceed with the transaction on
the basis of Logicon's counterproposal. Arrangements were made for detailed
due diligence meetings to commence early on May 2nd and for Logicon's legal
counsel to contact Northrop's legal counsel to discuss issues on the draft
agreements delivered at the April 28th meeting.
 
  On May 2nd and 3rd, a Northrop team conducted a more detailed review of
Logicon's written materials and meetings with the general managers of
Logicon's various business groups. On May 3rd, after Logicon executed a
confidentiality agreement with respect to information provided by Northrop,
several members of Northrop's senior management provided a detailed overview
to representatives of Logicon of Northrop's operating divisions as well as a
two-year business plan.
 
  The Northrop Board of Directors met on May 4th, and approved the proposed
transaction. The Board of Directors met on May 4th with Goldman Sachs
representatives and counsel in attendance, and received a final form of
agreement between Logicon and Northrop. The purposes of the meeting as stated
by Mr. Woodhull were to consider whether exclusive dealing with Northrop was
justified, to give final consideration to whether any other alternatives might
present a better value for the stockholders of Logicon, to consider the terms
of the proposed contract, to receive and consider the advice of Goldman Sachs
with respect to the fairness of the proposed transaction with Northrop and to
determine whether or not to execute the contract and recommend its approval to
the stockholders. At the Board meeting, Goldman Sachs summarized for the
Logicon Board of Directors the results of its analyses undertaken for purposes
of its opinion relating to the proposed transaction with Northrop. Such
analyses included the stock price history of the Logicon Common Stock and the
Northrop Common Stock, a comparison of Logicon and Northrop with other
publicly traded companies, an analysis of the contribution of Logicon to the
combined company resulting from the contemplated transaction, and an analysis
of the transaction in comparison to selected other acquisition transactions in
the defense and aerospace industry. The Goldman Sachs presentation also
included a discounted cash flow analysis for Logicon, and a present value
analysis of possible future stock prices of Logicon Common Stock. Finally, the
Goldman Sachs presentation
 
                                      24
<PAGE>
 
included a pro forma merger analysis to consider the dilutive or accretive
effects, if any, of the transaction on Northrop. These analyses are summarized
elsewhere in this Proxy Statement/ Prospectus. See "The Merger--Opinion of
Financial Adviser." Goldman Sachs also rendered its opinion, confirmed in
writing as of May 4, 1997, that as of such date and subject to the assumptions
and limitations therein, the Merger Consideration contemplated by the Merger
is fair to the holders of Logicon Common Stock. See "The Merger--Opinion of
Financial Adviser."
 
  The Board of Directors concluded that the Northrop proposal offered a better
opportunity for enhancing stockholder value than that offered by Logicon
continuing as an independent company, and also concluded that the wisest
course was to proceed promptly with the Northrop proposal and not to continue
negotiations with others. The Board of Directors then determined that the
proposed transaction was in the best interests of Logicon's stockholders,
approved the proposed agreement and authorized the officers to execute the
Merger Agreement. Immediately following the meeting, the Merger Agreement was
executed by the parties and a press release announcing the proposed
transaction was issued before the commencement of trading on Monday, May 5,
1997.
 
RECOMMENDATION OF THE BOARD OF DIRECTORS; REASONS FOR THE MERGER
 
  The Board of Directors unanimously approves the Merger and recommends that
stockholders vote FOR approval and adoption of the Merger Agreement. The Board
of Directors believes that the Merger is fair to and in the best interests of
the stockholders of Logicon.
 
  In reaching its conclusion to approve the Merger and to unanimously
recommend that the stockholders vote in favor of adoption of the Merger
Agreement, the Board of Directors considered a number of factors, including
the following:
 
  1. The Merger Agreement resulted from a comprehensive process that the Board
of Directors believes was conducted in a manner calculated to result in the
most attractive alternative available to the stockholders of Logicon. See "The
Merger--Background of the Merger" above.
 
  2. The information presented by Goldman Sachs at the May 1, 1997 and May 4,
1997 meetings of the Board of Directors and the written opinion of Goldman
Sachs dated May 4, 1997, to the effect that the Merger Consideration is fair
to the Logicon stockholders. Stockholders are urged to read the opinion of
Goldman Sachs attached hereto as an exhibit in its entirety.
 
  3. The terms and conditions of the Merger Agreement are fair and reasonable.
The Northrop Common Stock to be exchanged for Logicon Common Stock represents
ownership interests in a leading company in the defense industry, the same
industry in which Logicon occupies a smaller niche. Accordingly, the Northrop
Common Stock tends to represent the same kind of investment opportunities and
risks as the Logicon Common Stock.
 
  4. Other strategic alternatives open to Logicon, such as remaining
independent and seeking to grow by acquisitions, may be attractive but involve
a much greater risk from the standpoint of stockholder value than the proposed
Merger.
 
  5. The Merger Consideration represents a premium of approximately 30% above
the pre-announcement market price of Logicon Common Stock.
 
  6. The history of Logicon's contacts with other prospective parties,
including those that did not wish to pursue investigations of Logicon,
indicates that it is highly unlikely that a higher or better offer could have
been obtained from another party.
 
  7. The excellent business reputation and capabilities of Northrop and its
management, as well as its financial strength.
 
                                      25
<PAGE>
 
  8. The likelihood of continued consolidation in the industries that support
the national defense and the possibility that continued growth and
profitability may become increasingly more difficult for Logicon as an
independent company.
 
  9. The fact that, under the Merger Agreement, Logicon has the right, upon
payment to Northrop of $22.5 million, to terminate the agreement if a superior
proposal should be presented to Logicon or its stockholders.
 
  The Board of Directors did not assign relative weights to the factors noted
above or determine that any factor was of particular importance. Rather, the
Board of Directors viewed its position and recommendation as being based on
the totality of the information presented to and considered by it.
 
OPINION OF FINANCIAL ADVISER
 
  Logicon retained Goldman Sachs to act as its financial adviser in connection
with possible transactions to enhance shareholder value. In connection with
such engagement, Logicon requested that Goldman Sachs render its opinion as to
the fairness to Logicon's stockholders of the Merger Consideration.
 
  On May 4, 1997, in connection with the evaluation of the Merger Agreement by
the Board of Directors, Goldman Sachs rendered an opinion that, as of such
date, and subject to certain assumptions, factors and limitations set forth in
such written opinion as described below, the Merger Consideration is fair to
Logicon's stockholders.
 
  THE FULL TEXT OF THE WRITTEN OPINION OF GOLDMAN SACHS DATED MAY 4, 1997,
WHICH SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED AND LIMITATIONS ON
THE REVIEW UNDERTAKEN IN CONNECTION WITH THE OPINION, IS ATTACHED AS ANNEX B
TO THIS PROXY STATEMENT/PROSPECTUS. STOCKHOLDERS ARE URGED TO READ THIS
OPINION IN ITS ENTIRETY FOR INFORMATION WITH RESPECT TO THE PROCEDURES
FOLLOWED, ASSUMPTIONS MADE AND MATTERS CONSIDERED BY GOLDMAN SACHS IN
RENDERING SUCH OPINION. GOLDMAN SACHS' OPINION IS DIRECTED ONLY TO THE
CONSIDERATION TO BE RECEIVED BY STOCKHOLDERS PURSUANT TO THE MERGER AGREEMENT
AND DOES NOT CONSTITUTE A RECOMMENDATION TO ANY STOCKHOLDER AS TO HOW SUCH
STOCKHOLDER SHOULD VOTE AT THE SPECIAL MEETING. THE SUMMARY OF THE OPINION OF
GOLDMAN SACHS SET FORTH IN THIS PROXY STATEMENT/PROSPECTUS IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO THE FULL TEXT OF SUCH OPINION.
 
  In connection with its opinion, Goldman Sachs reviewed, among other things,
(a) the Merger Agreement, (b) the Annual Reports to Stockholders and the
Annual Reports on Form 10-K of Logicon for the five fiscal years ended March
31, 1996; (c) the Annual Reports to Stockholders and the Annual Reports on
Form 10-K of Northrop for the five years ended December 31, 1996; (d) certain
interim reports to stockholders and Quarterly Reports on Form 10-Q of Logicon
and Northrop; and (e) certain other communications from Logicon and Northrop
to their respective stockholders. Goldman Sachs also had discussions with
members of the senior management of Logicon and Northrop regarding the past
and current business operations, financial condition and future prospects of
their respective companies. In addition, Goldman Sachs reviewed the reported
price and trading activity for the shares of Logicon Common Stock and the
shares of Northrop Common Stock, compared certain financial and stock market
information for Logicon and Northrop with similar information for certain
other companies the securities of which are publicly traded, reviewed the
financial terms of certain recent business combinations in the aerospace and
defense industry specifically and in other industries generally and performed
such other studies and analyses as Goldman Sachs considered appropriate.
 
  Goldman Sachs relied without independent verification upon the accuracy and
completeness of all of the financial and other information reviewed by them
for purposes of their opinion. Goldman Sachs did not make an independent
evaluation or appraisal of the assets and liabilities of Logicon or Northrop
or any of their subsidiaries and they were not furnished with any such
evaluation or appraisal.
 
                                      26
<PAGE>
 
  The following is a summary of the financial analyses Goldman Sachs utilized
in connection with providing its written opinion to the Board of Directors on
May 4, 1997.
 
    (a) Stock Trading History. Goldman Sachs examined the history of the
  trading prices and volumes for the shares of Logicon Common Stock. This
  examination showed that during the four month period from January 1, 1997
  to May 1, 1997, the trading price of Logicon Common Stock ranged from
  $34.25 per share to $39.75 per share. This range may be compared to the
  Merger Consideration. In addition, this examination showed that over the
  period from January 1, 1996 to January 1, 1997, the trading price of
  Logicon Common Stock ranged from $25.375 per share to $42.875 per share.
  Goldman Sachs also examined the history of the trading prices and volumes
  for the shares of Northrop Common Stock. This examination showed that
  during the four month period from January 1, 1997 to May 1, 1997, the
  trading price of Northrop Common Stock ranged from $71.75 per share to
  $84.50 per share. This range may be compared to the closing price of the
  Northrop Common Stock on April 30, 1997 of $83.50 per share, which was used
  as the midpoint of the "collar" for the adjustment (prior to the date of
  this Proxy Statement/Prospectus) of the exchange rate in the Merger. In
  addition, this examination showed that over the period from January 1, 1996
  to January 1, 1997, the trading price of Northrop Common Stock ranged from
  $58.00 per share to $83.875 per share.
 
    (b) Comparison of Selected Peer Companies. Goldman Sachs compared
  selected historical stock market and balance sheet data and financial
  ratios for Logicon and Northrop to the corresponding data and ratios of the
  following groups of selected defense and aerospace companies and other
  groups and the companies indicated within each such group: (a)
  Aerospace/Defense Group: Boeing, General Dynamics, Litton, Lockheed Martin,
  Northrop and Raytheon; (b) Information Technology Group: BDM International,
  BTG, CACI International, Nichols Research and Tracor; and (c) Systems
  Integration/Outsourcing Group: American Management Systems, Ceridian,
  Computer Sciences Corp. and Electronic Data Systems. The multiples of
  Logicon and Northrop were calculated using a price of $40.375 per share of
  Logicon Common Stock and a price of $87.00 per share of Northrop Common
  Stock, the closing prices as of May 2, 1997. Such data and ratios included,
  among other things, levered market capitalization (current stock price
  multiplied by shares outstanding plus debt less cash and cash equivalents),
  levered market capitalization to latest twelve months ("LTM") sales, LTM
  earnings before interest, tax, depreciation and amortization ("EBITDA") and
  LTM earnings before interest and taxes ("EBIT"), as well as 1997 and 1998
  estimated price-to-earnings ("P/E") ratios (estimates provided by
  International Broker's Estimate System). An analysis of levered market
  capitalization to LTM sales yielded a range of 0.48x to 1.80x (with medians
  ranging from 0.74x to 1.34x) compared to 0.86x for Logicon and 0.99x for
  Northrop. An analysis of levered market capitalization to LTM EBITDA
  yielded a range of 6.4x to 15.6x (with medians ranging from 7.8x to 9.6x)
  compared to 8.0x for Logicon and 7.7x for Northrop. An analysis of levered
  market capitalization to LTM EBIT yielded a range of 8.7x to 37.9x (with
  medians ranging from 10.2x to 16.1x) compared to 9.3x for Logicon and 12.0x
  for Northrop. An analysis of calendar 1997 estimated P/E ratios yielded a
  range of 12.5x to 24.3x compared to 16.2x for Logicon and 14.7x for
  Northrop. An analysis of calendar 1998 estimated P/E ratios yielded a range
  of 10.5x to 20.0x compared to 14.6x for Logicon and 13.2x for Northrop.
 
    (c) Contribution Analysis. Goldman Sachs reviewed certain historical and
  estimated future operating and financial information (including, among
  other things, revenues, EBITDA, EBIT, net income and market capitalization)
  for Logicon, Northrop and the pro forma combined company resulting from the
  contemplated transaction. This analysis indicated that Logicon would have
  contributed 6.3% to combined revenues in 1996 and an estimated 7.0% in 1997
  and 7.6% in 1998, 5.3% to combined EBITDA in 1996 and an estimated 4.8% in
  1997 and 5.2% in 1998, 7.0% to combined EBIT in 1996 and an estimated 6.3%
  in 1997 and 6.4% in 1998, 11.7% to combined net income in 1996 and an
  estimated 8.9% in 1997 and 8.7% in 1998, and 10.0% of market capitalization
  as of May 2, 1997. Estimated future operating information was based on
  management estimates for Logicon and certain publicly available estimates
  in the case of Northrop.
 
    (d) Selected Transactions Analysis. Goldman Sachs analyzed certain
  information relating to selected transactions in the defense and aerospace
  industry (the "Selected Transactions"). Such analysis indicated
 
                                      27
<PAGE>
 
  that for the Selected Transactions, (i) aggregate consideration as a
  multiple of current year sales ranged from 0.32x to 1.68x with a median of
  0.69x and a mean of 0.83x compared to 1.20x for the contemplated
  transaction, (ii) aggregate consideration as a multiple of current year
  EBIT ranged from 5.1x to 17.0x with a median of 9.5x and a mean of 9.3x
  compared to 12.9x for the contemplated transaction, (iii) aggregate
  consideration as a multiple of current year EBITDA ranged from 2.9x to
  11.7x with a median of 7.2x and a mean of 7.2x compared to 11.2x for the
  contemplated transaction, (iv) aggregate consideration as a multiple of
  next year sales ranged from 0.37x to 1.66x with a median of 0.77x and a
  mean of 0.83x compared to 1.06x for the contemplated transaction, (v)
  aggregate consideration as a multiple of next year EBIT ranged from 4.0x to
  13.0x with a median of 8.4x and a mean of 8.6x compared to 11.7x for the
  contemplated transaction and (vi) aggregate consideration as a multiple of
  book value ranged from 0.8x to 9.6x with a median of 2.5x and a mean of
  3.0x compared to 4.6x for the contemplated transaction.
 
    (e) Discounted Cash Flow Analysis. Goldman Sachs performed a discounted
  cash flow analysis of Logicon. Goldman Sachs calculated a net present value
  of estimated free cash flows for the years 1998 through 2001 using discount
  rates ranging from 11% to 13%. Goldman Sachs calculated Logicon's terminal
  values in the year 2001 based on multiples ranging from 8.0x EBIT to 11.0x
  EBIT. These terminal values were then discounted to present value using
  discount rates from 11% to 13%. Using the foregoing terminal values and
  discounted cash flows for Logicon, the equity value per share ranged from
  $38.04 to $50.77.
 
    (f) Net Present Value Analysis. Goldman Sachs calculated the present
  value of a share of Logicon Common Stock assuming various earnings per
  share multiples applied to the fiscal year 2001 estimated earnings per
  share, discounted at rates ranging from 11.0% to 15.0%. The present value
  analysis suggested a range of valuation for Logicon between $31.09 per
  share and $44.92 per share.
 
    (g) Pro Forma Merger Analysis. Goldman Sachs prepared pro forma analyses
  of the financial impact of the Merger. Goldman Sachs performed this
  analysis based on a price of $83.50 per share for the Northrop Common
  Stock. Based on such analyses, the proposed Merger would be dilutive to
  Northrop's stockholders, but without giving effect to any synergies that
  may be achieved.
 
  The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to practical analysis or summary description.
Selecting portions of the analyses or of the summary set forth above, without
considering the analyses as a whole, could create an incomplete view of the
processes underlying Goldman Sachs' opinion. In arriving at its fairness
determination, Goldman Sachs considered the results of all such analyses. No
company or transaction used in the above analyses as a comparison is identical
to Logicon or Northrop or the contemplated transaction. The analyses were
prepared solely for purposes of Goldman Sachs' providing its opinion to the
Board of Directors as to the fairness of the Merger Consideration pursuant to
the Merger Agreement to the holders of shares of Logicon Common Stock and do
not purport to be appraisals or necessarily reflect the prices at which
businesses or securities actually may be sold. Analyses based upon forecasts
of future results are not necessarily indicative of actual future results,
which may be significantly more or less favorable than suggested by such
analyses. Because such analyses are inherently subject to uncertainty, being
based upon numerous factors or events beyond the control of the parties or
their respective advisers, none of Logicon, Northrop, Goldman Sachs or any
other person assumes responsibility if future results are materially different
from those forecast.
 
  As described above, Goldman Sachs' opinion to the Board of Directors was one
of the many factors taken into consideration by the Board of Directors in
making its determination to approve the Merger Agreement. The foregoing
summary does not purport to be a complete description of the analyses
performed by Goldman Sachs and is qualified by reference to the written
opinion of Goldman Sachs set forth in Annex B hereto.
 
  Goldman Sachs, as part of its investment banking business, is continually
engaged in the valuation of businesses and their securities in connection with
mergers and acquisitions, negotiated underwritings, competitive biddings,
secondary distributions of listed and unlisted securities, private placements
and valuations for estate, corporate and other purposes. Logicon selected
Goldman Sachs as its financial adviser because Goldman Sachs is a nationally
recognized investment banking firm that has substantial experience in
transactions similar to the Merger.
 
                                      28
<PAGE>
 
  Goldman Sachs provides a full range of financial, advisory and brokerage
services and in the course of its normal trading activities may from time to
time effect transactions and hold positions in the securities or options on
securities of Logicon and/or Northrop for its own account and for the account
of customers.
 
  Pursuant to a letter agreement dated September 4, 1996 (the "Engagement
Letter"), Logicon engaged Goldman Sachs to act as its financial adviser in
connection with the possible sale of Logicon. Pursuant to the terms of the
Engagement Letter, Logicon has agreed to pay Goldman Sachs upon consummation
of the Merger a transaction fee of approximately $11.2 million. Logicon has
agreed to reimburse Goldman Sachs for its reasonable out-of-pocket expenses,
including attorney's fees, and to indemnify Goldman Sachs against certain
liabilities, including certain liabilities under the federal securities laws.
 
MANAGEMENT OF LOGICON AFTER MERGER
 
  The directors of Acquisition prior to the Merger will be the initial
directors of the Surviving Corporation after the Merger. The officers of
Logicon prior to the Merger will be the initial officers of the Surviving
Corporation after the Merger.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
  Treatment of Stock Options, Etc. At the Effective Time, each Logicon Stock
Option, whether vested or unvested, shall be converted as of the Effective
Time into options to purchase shares of Northrop Common Stock. Each Logicon
Stock Option shall be deemed to constitute an option to acquire, on the same
terms and conditions as were applicable under such Logicon Stock Option, a
number of shares of Northrop Common Stock equal to the number of shares of
Northrop Common Stock that the holder of such Logicon Stock Option would have
been entitled to receive pursuant to the Merger had such holder exercised such
option in full immediately prior to the Effective Time at a price per share
equal to (a) the aggregate exercise price for shares of Logicon Common Stock
otherwise purchasable pursuant to such Logicon Stock Option divided by (b) the
product of (i) the number of shares of Logicon Common Stock otherwise
purchasable pursuant to such Logicon Stock Option, multiplied by (ii) the
Exchange Ratio. Pursuant to the provisions of all Logicon stock option
agreements, with the exception of the plan assumed by Logicon pursuant to the
merger with Geodynamics Corporation, and the options issued thereunder, all
Logicon Stock Options will become exercisable in full as the result of the
Merger.
 
  The Merger Agreement provides that the Restricted Stock Purchase Plan (the
"RSPP") of Logicon will continue with respect to the shares issued thereunder
and Northrop Common Stock issued in exchange therefor pursuant to the Merger.
 
  Upon a "change of control," the management performance units contingently
awarded by the Executive Compensation Committee of the Board of Directors (the
"Committee") will at the time of the "change of control" be redeemable in cash
in an amount based on a cumulative quarterly earnings per share formula
prescribed by the Committee in its discretion, provided that the value of a
unit will not exceed $200 nor be less than $0.
 
                                      29
<PAGE>
 
  The following table sets forth information, with respect to the Chief
Executive Officer, the four most highly compensated executive officers of
Logicon other than the Chief Executive Officer and all officers as a group, as
to the options, shares of restricted stock and management performance units
outstanding on May 31, 1997, and any cash payment to be received in accordance
with any plan governing such securities upon consummation of the Merger.
 
<TABLE>
<CAPTION>
                                                                    CASH PAYMENT TO
                                          SHARES OF     MANAGEMENT  BE RECEIVED UPON
  NAME AND PRINCIPAL     OPTION SHARES RESTRICTED STOCK PERFORMANCE CONSUMMATION OF
       POSITION              HELD          HELD(A)      UNITS HELD     THE MERGER
  ------------------     ------------- ---------------- ----------- ----------------
<S>                      <C>           <C>              <C>         <C>
Frank T. Cummings              --           54,475         1,307       $  261,400
 Vice President
James E. Dalton                --           54,475         1,307          261,400
 Vice President
Dr. James F. Harvey            --           32,935         1,307          261,400
 Vice President
Ralph L. Webster             5,200          29,107         1,124          224,800
 Vice President & Chief
 Financial Officer
John R. Woodhull            14,400         106,165         3,915          783,000
 President & Chief
 Executive Officer
All officers as a group     38,150         359,109        11,895        2,379,000
</TABLE>
- --------
(a) Vested and unvested
 
  Indemnification. The Merger Agreement provides that, after the Effective
Time, the Surviving Corporation shall indemnify and hold harmless each person
who has been, is now or becomes prior to the Effective Time, a director or
officer of Logicon or any of its subsidiaries against all losses, claims,
damages, costs, expenses, settlement payments, or liabilities arising out of
(a) the fact that such person is or was an officer or director of Logicon or
its subsidiaries and (b) the transactions contemplated by the Merger
Agreement. Northrop agreed in the Merger Agreement that all rights to
indemnification existing in favor of directors or officers of Logicon as
provided under any agreement with Logicon or in Logicon's Certificate of
Incorporation or Bylaws shall not be adversely affected by any indemnification
provision contained in the Merger Agreement. Northrop also agreed to guarantee
the payment and performance of the Surviving Corporation's indemnification
obligations under the Merger Agreement. See "The Merger Agreement--
Indemnification."
 
  Employment Agreements. Northrop has or will establish a Key Employee
Retention Plan (the "KERP") for the purpose of retaining certain key
management personnel of Logicon after the Merger. Messrs. Cummings, Dalton,
Harvey, Webster and Woodhull have been offered the opportunity to participate
in the KERP. Under the KERP, such persons will be eligible to receive bonus
compensation equal to 33 1/3% of the annual base salary of such employees in
effect immediately prior to the Merger (the "Effective Base Salary") on the
first anniversary of the Effective Time and equal to 66 2/3% of the Effective
Base Salary on the second anniversary of the Effective Time. Payment of awards
under the KERP is conditioned upon the management employee's continuing
employment with Logicon for the two-year term of the plan and individual
performance and conduct satisfactory to Northrop. Participants in the plan who
voluntarily terminate employment with Northrop or who are terminated by
Northrop for cause forfeit any further payments under the plan. Participants
who are terminated for the convenience of Northrop will receive payments which
would otherwise have been made to them had they completed employment for the
full term of the KERP. The designated management employees will be required to
accept employment with Northrop for a period of two years as a condition to
participation in the KERP. Based on the current base salary of the following
persons, each would be eligible to receive under the KERP the following
amounts on the first and second anniversaries of the Effective Time,
respectively: Mr. Cummings-- $77,723 and $155,445; Mr. Dalton--$77,723 and
$155,445; Dr. Harvey--$77,723 and $155,445; Mr. Webster-- $73,320 and
$146,640; and Mr. Woodhull--$128,423 and $256,845.
 
                                      30
<PAGE>
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
  The following is a discussion of the material federal income tax
consequences of the Merger to Logicon, Northrop and the holders of Logicon
Common Stock. This discussion is based on the current provisions of the
Internal Revenue Code of 1986, as amended (the "Code"), applicable Treasury
Regulations, judicial decisions, and administrative rulings and practice.
Changes in any of the foregoing could alter the conclusions reached herein,
and such changes may have retroactive effect. The tax treatment of a
stockholder may vary depending upon his or her particular situation, and
certain stockholders (including individuals who hold restricted stock or stock
options or who otherwise received compensation for services in the form of
stock, options or other interests in Logicon, insurance companies, tax-exempt
organizations, financial institutions, broker-dealers and foreign persons or
entities) may be subject to special rules not discussed below.
 
  EACH STOCKHOLDER IS URGED TO CONSULT HIS OR HER TAX ADVISER AS TO THE
  PARTICULAR TAX CONSEQUENCES OF THE MERGER, INCLUDING THE APPLICABILITY
  AND EFFECT OF ANY STATE, LOCAL OR FOREIGN TAX LAWS, AND OF ANY CHANGES
  IN APPLICABLE TAX LAWS.
 
  In the opinion of O'Melveny & Myers LLP, counsel to Logicon:
 
    (a) The Merger will constitute a tax-free reorganization within the
  meaning of Section 368(a) of the Code, and each of Northrop, Acquisition
  and Logicon will be a party to the reorganization within the meaning of
  Section 368(b) of the Code;
 
    (b) Except for any cash received in lieu of fractional shares of Northrop
  Common Stock, a stockholder of Logicon will not recognize any gain or loss
  as a result of the exchange of Logicon Common Stock for Northrop Common
  Stock pursuant to the Merger;
 
    (c) A stockholder's tax basis in the shares of Northrop Common Stock
  received in the Merger, including any fractional share interest for which
  cash is received, will equal the tax basis of the shares of Logicon Common
  Stock exchanged therefor pursuant to the Merger; and
 
    (d) A stockholder's holding period for shares of Northrop Common Stock
  received in the Merger, including any fractional share interest for which
  cash is received, will include the holding period of the shares of Logicon
  Common Stock exchanged therefor pursuant to the Merger, provided such
  shares were held by such stockholder as capital assets.
 
  In the opinion of Gibson, Dunn & Crutcher LLP, counsel to Northrop:
 
    (a) The Merger will constitute a tax-free reorganization within the
  meaning of Section 368(a) of the Code, and each of Northrop, Acquisition
  and Logicon will be a party to the reorganization within the meaning of
  Section 368(b) of the Code;
 
    (b) Acquisition will not recognize any gain or loss as a result of the
  transfer of its assets to Logicon pursuant to the Merger; and
 
    (c) Northrop will not recognize any gain or loss upon the issuance of the
  Northrop Common Stock pursuant to the Merger.
 
  The opinions of O'Melveny & Myers LLP and Gibson, Dunn & Crutcher LLP are
based on current law, the information contained in this Proxy
Statement/Prospectus and certain representations as to factual matters made by
Logicon, Northrop, Acquisition and certain stockholders (the "Specified
Stockholders") of Logicon, forms of which are attached as exhibits to the
Merger Agreement. Any inaccuracy or change with respect to such information or
representations, or any past or future actions by Logicon, Northrop,
Acquisition or the Specified Stockholders contrary to such representations,
could adversely affect the conclusions reached herein.
 
  An opinion of counsel is not binding on the Internal Revenue Service or the
courts, and only represents such counsel's best judgment. The parties have not
and will not request a ruling from the Internal Revenue
 
                                      31
<PAGE>
 
Service in connection with the federal income tax consequences of the Merger.
If the Internal Revenue Service successfully challenges the status of the
Merger as a tax-free reorganization, holders of Logicon Common Stock will be
treated as if they sold their Logicon Common Stock in a taxable transaction.
In such event, each holder of Logicon Common Stock would recognize gain or
loss equal to the difference between the holder's tax basis in the shares of
the Logicon Common Stock surrendered in the Merger and the fair market value,
at the Effective Time, of the Northrop Common Stock received in exchange
therefor (plus any cash received for fractional shares of Northrop Common
Stock).
 
ACCOUNTING TREATMENT
 
  The Merger will be treated as a "pooling of interests" for accounting and
financial reporting purposes. Under this method of accounting, the recorded
assets and liabilities of Northrop and Logicon will be carried forward to the
combined corporation at their recorded amounts, subject to any adjustments
required to conform the accounting policies of the companies; income of the
combined corporation will include income of Northrop and Logicon for the
entire fiscal year in which the Merger occurs; and the reported income of the
separate corporations for prior periods will be combined and restated as
income of the combined corporation.
 
  The Merger Agreement provides that a condition to the consummation of the
Merger is the receipt by Northrop of an opinion from Deloitte & Touche LLP
stating that the Merger will be accounted for as a "pooling of interests"
transaction, and that such opinion shall not have been withdrawn or modified
in any material respect.
 
EFFECT ON EMPLOYEE BENEFITS PLANS
 
  Logicon maintains a number of employee benefit plans and compensation
arrangements in which eligible employees of Logicon and certain of its
affiliates participate. Northrop will provide the employees and retirees of
Logicon and its subsidiaries, for a period ending on the first anniversary of
the Effective Time, with compensation and employee benefit plans (other than
stock option or other plans involving the potential issuance or purchase on
the open market of securities of Logicon or Northrop, which shall be converted
as set forth in the Merger Agreement) which, in the aggregate, are comparable
to those currently provided by Logicon and its subsidiaries. Northrop and
Logicon have agreed, and Northrop will cause the Surviving Corporation to
agree that, (a) all obligations of Logicon or any of its subsidiaries under
any "change of control" or similar provisions relating to employees contained
in any existing contracts, and all termination and severance agreements with
executive officers, will be honored in accordance with their terms as of the
date of the Merger Agreement, and (b) the Restricted Stock Purchase Plan (the
"RSPP") of Logicon will continue in effect with respect to the shares issued
thereunder and Northrop Common Stock issued in exchange therefor pursuant to
the Merger, and appropriate adjustments will be made to the RSPP such that
following the Effective Time such shares of Northrop Common Stock shall be
held substantially in accordance with the terms of the RSPP.
 
CERTAIN LEGAL MATTERS
 
  Antitrust. Pursuant to the requirements of the HSR Act, on May 15, 1997,
Logicon and Northrop each filed a Notification and Report Form for review
under the HSR Act with the FTC and the Antitrust Division. The waiting period
under the HSR Act with respect to such filings will expire on June 14, 1997,
unless additional information is requested.
 
  Northrop and Logicon do not believe that any additional governmental filings
in the United States, other than the Merger Certificate, are required with
respect to the Merger. Even if the HSR Act waiting period expires, the FTC or
the Antitrust Division could take such action under the antitrust laws as it
deems necessary or desirable in the public interest, including seeking
divestiture of substantial assets of Logicon or Northrop. Consummation of the
Merger is conditioned upon, among other things, the absence of any preliminary
or permanent injunction or other order issued by any federal or state court in
the United States which prevents the consummation of the Merger.
 
                                      32
<PAGE>
 
  Northrop does not believe that consummation of the Merger will result in a
violation of any applicable antitrust laws. However, there can be no assurance
that a challenge to the Merger on antitrust grounds will not be made or, if
such a challenge is made, of the result.
 
FEDERAL SECURITIES LAW CONSEQUENCES
 
  All Northrop Common Stock issued in connection with the Merger will be
freely transferable, except that any Northrop Common Stock received by persons
who are deemed to be "affiliates" (as such term is defined under the
Securities Act) of Northrop or Logicon prior to the Merger may be sold by them
only in transactions permitted by the resale provisions of Rule 145 under the
Securities Act with respect to affiliates of Logicon or as otherwise permitted
under the Securities Act. Persons who may be deemed to be affiliates of
Logicon generally include individuals or entities that control, are controlled
by, or are under common control with, such party and may include certain
officers and directors of such party as well as principal stockholders of such
party.
 
  Affiliates may not sell their shares of Northrop Common Stock acquired in
connection with the Merger, except pursuant to an effective registration
statement under the Securities Act covering such shares or in compliance with
Rule 145 (or Rule 144 under the Securities Act in the case of persons who
become affiliates of Northrop) or another applicable exemption from the
registration requirements of the Securities Act. In general, under Rule 145,
for one year following the Effective Time an affiliate (together with certain
related persons) would be entitled to sell shares of Northrop Common Stock
acquired in connection with the Merger only through unsolicited "broker
transactions" or in transactions directly with a "market maker," as such terms
are defined in Rule 144. Additionally, the number of shares to be sold by an
affiliate (together with certain related persons and certain persons acting in
concert) within any three-month period for purposes of Rule 145 may not exceed
the greater of 1% of the outstanding shares of Northrop Common Stock or the
average weekly trading volume of such stock during the four calendar weeks
preceding such sale. Rule 145 would only remain available, however, to
affiliates if Northrop remained current with its informational filings with
the Commission under the Exchange Act. One year after the Effective Time, an
affiliate would be able to sell such shares of Northrop Common Stock without
such manner of sale or volume limitations provided that Northrop was current
with its Exchange Act informational filings and such affiliate was not then an
affiliate of Northrop. Two years after the Effective Time, an affiliate would
be able to sell such shares of Northrop Common Stock without any restrictions
so long as such affiliate had not been an affiliate of Northrop for at least
three months prior thereto.
 
STOCK EXCHANGE LISTING
 
  It is a condition to the Merger that the shares of Northrop Common Stock to
be issued in connection with the Merger be authorized for listing on the NYSE,
subject to official notice of issuance.
 
NO APPRAISAL RIGHTS
 
  Under the DGCL, the holders of Logicon Common Stock are not entitled to any
appraisal rights with respect to the Merger. Section 262 of the DGCL provides
appraisal rights to stockholders of Delaware corporations in connection with
certain mergers and consolidations. However, under such section, appraisal
rights are not available to the stockholders of a corporation that is a party
to a merger if the corporations' stock is listed on a national securities
exchange as of the record date set to determine the stockholders entitled to
receive notice of and to vote at the meeting of stockholders to approve the
merger so long as the consideration to be received by such stockholders in the
merger consists of (a) shares of the capital stock of the surviving
corporation in the merger, (b) shares of the capital stock of any other
corporation provided that such stock is listed on a national securities
exchange as of the date on which the merger becomes effective, (c) cash in
lieu of fractional shares or (d) a combination of the foregoing.
 
                                      33
<PAGE>
 
CERTAIN OTHER AGREEMENTS
 
  Persons who may be deemed to be affiliates of Logicon have executed
Affiliates' Letters in which they have made certain representations about
their intentions to hold the shares of Northrop Common Stock to be received in
the Merger and agreed to certain restrictions on resale of such shares.
Persons who may be deemed to be affiliates of Northrop have also executed
Affiliates' Letters in which they have made certain representations about
their intentions to hold their shares of Northrop Common Stock and agreed to
certain restrictions on resale of such shares. The representations and
restrictions of resale are intended to preserve the characterization of the
Merger for federal income tax purposes as a reorganization, to comply with the
requirements for pooling of interest accounting treatment and to comply with
restrictions on resale of securities imposed by federal securities laws.
 
 
                                      34
<PAGE>
 
                             THE MERGER AGREEMENT
 
GENERAL
 
  The following description of the Merger Agreement does not purport to be
complete and is qualified in its entirety by reference to the Merger
Agreement, a copy of which is attached hereto as Annex A. Stockholders are
urged to read the Merger Agreement in its entirety.
 
THE MERGER
 
  The Merger Agreement provides that, subject to the approval and adoption of
the Merger Agreement by the stockholders of Logicon and the satisfaction or
waiver of the other conditions to the Merger, Acquisition will be merged with
and into Logicon in accordance with the DGCL, whereupon the separate existence
of Acquisition will cease and Logicon will be the Surviving Corporation. At
the Effective Time, the conversion of Logicon Common Stock and the conversion
of shares of the common stock of Acquisition pursuant to the Merger Agreement
will be effected as described below. The Certificate of Incorporation and
Bylaws of Logicon will be the Certificate of Incorporation and Bylaws of the
Surviving Corporation, except that Article Fourth of the Certificate of
Incorporation shall be amended to provide that the aggregate number of shares
which the Surviving Corporation shall have the authority to issue is one
thousand (1,000), par value $0.01 per share. The directors of Acquisition
immediately prior to the Effective Time will be the initial directors of the
Surviving Corporation and the officers of Logicon immediately prior to the
Effective Time will be the initial officers of the Surviving Corporation, in
each case until their respective successors are duly elected or appointed and
qualified.
 
EFFECTIVE TIME
 
  Following the approval and adoption of the Merger Agreement and subject to
satisfaction or waiver of certain terms and conditions, including conditions
to closing, contained in the Merger Agreement, the Merger will become
effective on such date as the Merger Certificate is duly filed with the
Secretary of State of Delaware. The filing of the Merger Certificate will be
made at a time and on a date specified by the parties which shall be no later
than the second business day after all conditions contemplated by the Merger
Agreement have been satisfied or waived.
 
TERMS OF THE MERGER
 
  At the Effective Time:
 
    (a) each share of Logicon Common Stock held in Logicon's treasury or by
  any subsidiary of Logicon or held by Northrop, Acquisition or any of their
  subsidiaries immediately prior to the Effective Time will be canceled,
  retired and cease to exist and no shares of Northrop Common Stock will be
  delivered with respect thereto;
 
    (b) each remaining outstanding share of Logicon Common Stock shall be
  converted into and shall become 0.6161 of a fully paid and nonassessable
  share of Northrop Common Stock, except that cash will be paid in lieu of
  any fractional share of Northrop Common Stock; and
 
    (c) each outstanding share of the common stock, par value $0.01 per
  share, of Acquisition shall be converted into and become one share of
  common stock, par value $0.10 per share, of the Surviving Corporation.
 
Each share of Northrop Common Stock issued to Logicon stockholders in the
Merger will include a Right issued pursuant to the Northrop Rights Agreement.
See "Comparison of Stockholder Rights--Northrop Rights Agreement."
 
  At the Effective Time, present holders of Logicon Common Stock will cease to
have any rights as holders of such shares, but will have the right to receive
shares of Northrop Common Stock and cash in lieu of any
 
                                      35
<PAGE>
 
fractional shares of Northrop Common Stock. After the Effective Time, the
stock transfer books of Logicon will be closed and there shall be no further
transfers of Logicon Common Stock. See "The Merger--Conversion of Shares;
Procedures for Exchange of Certificates" and "Comparison of Stockholder
Rights."
 
FRACTIONAL SHARES
 
  Fractional shares of Northrop Common Stock will not be issued in connection
with the Merger. In lieu of any such fractional share, each holder of Logicon
Common Stock who would otherwise have been entitled to a fraction of a share
of Northrop Common Stock upon surrender of certificates for exchange will be
paid cash (without interest) in an amount determined by multiplying the
closing price for Northrop Common Stock as reported on the NYSE Composite
Transactions reporting system on the business day five days prior to the
Effective Time by the fractional share interest to which such holder would
otherwise be entitled.
 
SURRENDER AND PAYMENT
 
  From time to time following the Effective Time, as required by the Merger
Agreement, Northrop will deposit with the Exchange Agent, or such other agent
as may be appointed by Northrop or Acquisition, certificates representing the
appropriate number of shares of Northrop Common Stock and cash to be paid in
lieu of fractional shares of Northrop Common Stock issuable in connection with
the Merger. As soon as reasonably practicable after the Effective Time, the
Exchange Agent shall mail to each holder of record of Logicon Common Stock a
letter of transmittal and instructions for surrendering the certificates
representing shares of Logicon Common Stock, and each holder of Logicon Common
Stock will be entitled to receive, upon surrender to the Exchange Agent of one
or more certificates representing such stock, certificates representing the
number of shares of Northrop Common Stock into which such shares are converted
in the Merger and cash in consideration of fractional shares of Northrop
Common Stock, as described above. Northrop Common Stock into which Logicon
Common Stock will be converted in the Merger shall be deemed to have been
issued at the Effective Time.
 
  No dividends or other distributions that are declared or made on Northrop
Common Stock will be paid to persons entitled to receive certificates
representing Northrop Common Stock until such persons surrender their
certificates representing such Logicon Common Stock. Upon such surrender,
there shall be paid to the person in whose name the certificates representing
such Northrop Common Stock shall be issued any dividends or other
distributions which shall have become payable with respect to such Northrop
Common Stock in respect of a record date after the Effective Time. In no event
shall the person entitled to receive such dividends be entitled to receive
interest on such dividends. In the event that any certificates representing
shares of Northrop Common Stock are to be issued in a name other than that in
which the certificates representing shares of Logicon Common Stock surrendered
in exchange therefor are registered, it shall be a condition of such exchange
that the person requesting such exchange present to the Exchange Agent such
certificates with all documents required to evidence and effect such transfer
and evidence that any applicable stock transfer taxes have been paid.
Notwithstanding the foregoing, neither Northrop nor Logicon shall be liable to
any holder of shares of Logicon Common Stock or Northrop Common Stock, as the
case may be, for any shares of Northrop Common Stock (or dividends thereon) or
cash in lieu of fractional shares of Northrop Common Stock delivered to a
public official pursuant to any applicable abandoned property, escheat or
similar law.
 
  DETAILED INSTRUCTIONS, INCLUDING A TRANSMITTAL LETTER, WILL BE MAILED TO
STOCKHOLDERS AS SOON AS REASONABLY PRACTICABLE FOLLOWING THE EFFECTIVE TIME AS
TO THE METHOD OF EXCHANGING CERTIFICATES FORMERLY REPRESENTING SHARES OF
LOGICON COMMON STOCK FOR CERTIFICATES REPRESENTING SHARES OF NORTHROP COMMON
STOCK. SEE "THE MERGER--CONVERSION OF SHARES; PROCEDURES FOR EXCHANGE OF
CERTIFICATES." STOCKHOLDERS SHOULD NOT SEND CERTIFICATES REPRESENTING THEIR
SHARES TO LOGICON OR, PRIOR TO RECEIPT OF THE TRANSMITTAL LETTER, TO THE
EXCHANGE AGENT.
 
                                      36
<PAGE>
 
CONDITIONS TO CONSUMMATION OF THE MERGER
 
  The respective obligations of each party hereto to effect the Merger are
subject to the satisfaction at or prior to the Effective Time of the following
conditions:
 
    (a) the Merger Agreement shall have been approved and adopted by the
  requisite vote of the stockholders of Logicon; (b) no statute, rule,
  regulation, executive order, decree, ruling or injunction shall have been
  enacted, entered, promulgated or enforced by any United States court or
  United States governmental authority which prohibits, restrains, enjoins or
  restricts the consummation of the Merger; (c) any waiting period applicable
  to the Merger under the HSR Act shall have terminated or expired and any
  other governmental or regulatory notices or approvals required with respect
  to the transactions contemplated by the Merger Agreement shall have been
  either filed or received; (d) the Registration Statement shall have become
  effective under the Securities Act and shall not be the subject of any stop
  order or proceedings seeking a stop order, and Northrop shall have received
  all state securities laws or "blue sky" permits and authorizations
  necessary to issue shares of Northrop Common Stock in exchange for shares
  of Logicon Common Stock in the Merger.
 
  The obligation of Logicon to effect the Merger is subject to the
satisfaction at or prior to the Effective Time of the following conditions:
 
    (a) the representations of Northrop and Acquisition contained in the
  Merger Agreement or in any other document delivered pursuant thereto shall
  be true and correct (except to the extent that the breach thereof would not
  have a material adverse effect on Northrop) at and as of the Effective Time
  with the same effect as if made at and as of the Effective Time (except to
  the extent such representations specifically related to an earlier date, in
  which case such representations shall be true and correct as of such
  earlier date) and, at the Closing, Northrop and Acquisition shall have
  delivered to Logicon a certificate to that effect; (b) each of the
  covenants and obligations of Northrop and Acquisition to be performed at or
  before the Effective Time pursuant to the terms of the Merger Agreement
  shall have been duly performed in all material respects at or before the
  Effective Time and, at the Closing, Northrop and Acquisition shall have
  delivered to Logicon a certificate to that effect; (c) the shares of
  Northrop Common Stock issuable to Logicon stockholders pursuant to the
  Merger Agreement and such other shares required to be reserved for issuance
  in connection with the Merger shall have been authorized for listing on the
  NYSE upon official notice of issuance; (d) Logicon shall have received the
  opinion of tax counsel to Logicon to the effect that (i) the Merger will be
  treated for federal income tax purposes as a reorganization within the
  meaning of Section 368(a) of the Code; (ii) each of Northrop, Acquisition
  and Logicon will be a party to the reorganization within the meaning of
  Section 368(b) of the Code; (iii) no gain or loss for federal income tax
  purposes will be recognized by a stockholder of Logicon as a result of the
  Merger with respect to shares of Logicon Common Stock converted solely into
  shares of Northrop Common Stock; and (iv) the holding period of the
  Northrop Common Stock received by stockholders of Logicon (including any
  fractional share interest treated as received) will include the holding
  period of the shares of Logicon Common Stock exchanged therefor, provided
  the shares were held as capital assets, and such opinion shall not have
  been withdrawn or modified in any material respect; (e) Logicon shall have
  received the opinion of legal counsel to Northrop as to certain matters set
  forth in the Merger Agreement; (f) Northrop shall have obtained the consent
  or approval of each person whose consent or approval shall be required in
  connection with the transactions contemplated by the Merger Agreement under
  any loan or credit agreement, note, mortgage, indenture, lease or other
  agreement or instrument, except those for which failure to obtain such
  consents and approvals would not, in the reasonable opinion of Logicon,
  individually or in the aggregate, have a material adverse effect on
  Northrop; and (g) there shall have been no events, changes or effects with
  respect to Northrop or its subsidiaries having or which could reasonably be
  expected to have a material adverse effect on Northrop.
 
                                      37
<PAGE>
 
  The respective obligations of Northrop and Acquisition to effect the Merger
are subject to the satisfaction at or prior to the Effective Time of the
following conditions:
 
    (a) the representations of Logicon contained in the Merger Agreement or
  in any other document delivered pursuant thereto shall be true and correct
  (except to the extent that the breach thereof would not have a material
  adverse effect on Logicon) at and as of the Effective Time with the same
  effect as if made at and as of the Effective Time (except to the extent
  such representations specifically related to an earlier date, in which case
  such representations shall be true and correct as of such earlier date)
  and, at the Closing, Logicon shall have delivered to Northrop and
  Acquisition a certificate to that effect; (b) each of the covenants and
  obligations of Logicon to be performed at or before the Effective Time
  pursuant to the terms of the Merger Agreement shall have been duly
  performed in all material respects at or before the Effective Time and, at
  the Closing, Logicon shall have delivered to Northrop and Acquisition a
  certificate to that effect; (c) Northrop shall have received from each
  affiliate of Logicon an executed copy of a letter containing a covenant not
  to sell, transfer or dispose of Northrop Common Stock received pursuant to
  the Merger Agreement except as permitted therein, and shall have received
  from each affiliate of Northrop an executed copy of a letter containing
  similar restrictions with respect to Northrop Common Stock; (d) the shares
  of Northrop Common Stock issuable to Logicon stockholders pursuant to the
  Merger Agreement and such other shares required to be reserved for issuance
  in connection with the Merger shall have been authorized for listing on the
  NYSE upon official notice of issuance; (e) Northrop shall have received the
  opinion of tax counsel to Northrop to the effect that (i) the Merger will
  be treated for Federal income tax purposes as a reorganization within the
  meaning of Section 368(a) of the Code; (ii) each of Northrop, Acquisition
  and Logicon will be a party to the reorganization within the meaning of
  Section 368(b) of the Code; and (iii) no gain or loss will be recognized by
  Northrop upon the issuance of the Northrop Common Stock pursuant to the
  Merger, and such opinion shall not have been withdrawn or modified in any
  material respect; (f) Northrop shall have received the opinion of legal
  counsel to Logicon as to certain matters set forth in the Merger Agreement;
  (g) Northrop shall have received the opinion of Deloitte & Touche LLP
  stating that the Merger will be accounted for under generally accepted
  accounting principles as a "pooling of interests" transaction, and such
  opinion shall not have been withdrawn or modified in any material respect;
  (h) Logicon shall have obtained the consent or approval of each person
  whose consent or approval shall be required in order to permit the
  succession by the Surviving Corporation pursuant to the Merger to any
  obligation, right or interest of Logicon or any subsidiary of Logicon under
  any loan or credit agreement, note, mortgage, indenture, lease or other
  agreement or instrument, except for those for which failure to obtain such
  consents and approvals would not, in the reasonable opinion of Northrop,
  individually or in the aggregate, have a material adverse effect on
  Logicon; and (i) there shall have been no events, changes or effects with
  respect to Logicon or its subsidiaries having or which could reasonably be
  expected to have a material adverse effect on Logicon.
 
  There can be no assurance that all of the conditions to the Merger will be
satisfied.
 
REPRESENTATIONS AND WARRANTIES
 
  The Merger Agreement contains various representations and warranties of
Northrop, Acquisition and Logicon relating to, among other things, the
following matters (which representations and warranties are subject, in
certain cases, to specified exceptions):
 
    (a) the due organization, power and standing of, and similar corporate
  matters with respect to, each of Logicon, Northrop and Acquisition; (b)
  each of Logicon's and Northrop's capitalization; (c) the authorization,
  execution, delivery and enforceability of the Merger Agreement by each such
  party and the consummation of the transactions contemplated thereby; (d)
  reports and other documents filed with the Commission since March 31, 1993,
  in the case of Logicon, and December 31, 1993, in the case of Northrop, and
  the accuracy of the information contained therein; (e) the absence of any
  material untrue statements in the Registration Statement and this Proxy
  Statement/Prospectus; (f) the absence of any conflict with each of
  Logicon's, Northrop's and Acquisition's corporate charter and bylaws and
  compliance with applicable laws; (g) the absence of any governmental or
  regulatory authorization, consent or approval required to
 
                                      38
<PAGE>
 
  consummate the Merger; (h) the absence of any breach, default or violation
  of each of Logicon's and Northrop's corporate charter or bylaws, and of any
  obligation or regulation to which Logicon or Northrop is bound; (i) the
  absence of any material undisclosed liabilities; (j) the absence of certain
  changes or events having a material adverse effect on the business, results
  of operations, condition (financial or otherwise) or prospects of Logicon
  or Northrop; (k) the absence of any litigation having a material adverse
  effect on Northrop or Logicon; (l) compliance with laws and regulations, a
  violation of which could have a material adverse effect on Northrop or
  Logicon; (m) the disclosure of all Logicon employee benefit plans and
  compliance in all material respects with statutes governing their
  administration; (n) the disclosure of information with respect to options
  to purchase Logicon Common Stock, including price, vesting date and
  expiration; (o) the disclosure of any acceleration of benefits under any
  Logicon employee benefit plans pursuant to the transactions contemplated by
  the Merger Agreement; (p) labor union contracts; (q) material compliance
  with environmental laws and the absence of environmental claims which would
  have a material adverse effect on Northrop or Logicon; (r) compliance with
  tax laws and regulations, including the absence of tax delinquencies; (s)
  valid rights to use all intellectual property material to the business of
  Logicon or Northrop; (t) the stockholder vote required to approve the
  Merger Agreement for Logicon; (u) the absence of actions taken by Logicon
  or Northrop that would prevent the Merger from being effected as a "pooling
  of interests" for accounting and financial reporting purposes; (v) the
  delivery of letter agreements from affiliates of Northrop and Logicon
  regarding maintaining a continuity of interest in Northrop Common Stock;
  (w) absence of unlawful payments; (x) the receipt of opinions of Logicon's
  and Northrop's financial advisers; (y) the absence of any brokerage or
  finders fees associated with the Merger (other than Salomon Brothers and
  Goldman Sachs); (z) the absence of any misleading representation or
  warranty in any document received from Northrop or Logicon; and (aa)
  Acquisition has not engaged in any business or activity except in
  connection with the Merger.
 
CONDUCT OF BUSINESS PENDING THE MERGER
 
  Prior to the Effective Time, unless Northrop shall otherwise agree in
writing, Logicon will, and will cause its subsidiaries, to conduct their
operations in the ordinary course of business consistent with past practice,
and with no less diligence and effort than would be applied in the absence of
the Merger Agreement seek, to preserve intact their current business
organizations, keep available the services of their current officers and
employees and preserve their relationships with customers, suppliers and
others having business dealings with them to the end that goodwill and on-
going businesses shall be unimpaired at the Effective Time.
 
  Except for certain exceptions set forth in the Merger Agreement, neither
Logicon nor any of its subsidiaries will, without the prior written consent of
Northrop or Acquisition: (a) amend its Certificate of Incorporation or Bylaws;
(b) amend its rights plan; (c) authorize for issuance, sell or deliver any of
its capital stock (except pursuant to options previously granted under a
Logicon plan); (d) split, combine or reclassify any shares of its capital
stock or declare or pay any dividends; (e) adopt a plan of liquidation or
other reorganization (other than the Merger); (f) alter the corporate
structure of ownership of any subsidiary; (g) incur any debt or assume any
obligation other than in the ordinary course; (h) adopt or amend any employee
benefit agreement; (i) acquire any assets in excess of $1 million other than
in connection with outsourcing agreements; (j) change accounting principles
except as required by law or generally accepted accounting principles; (k)
materially revalue any assets; (l) acquire any business organization, enter
any material agreement other than in the ordinary course of business, or
authorize any capital expenditure which individually is in excess of $100,000
or, in the aggregate, $500,000; (m) make any tax election or settle any
material tax liability; (n) settle any pending or threatened claim relating to
the transactions contemplated by the Merger Agreement or which could have a
material adverse effect on Logicon; (o) commence or terminate any material
software development project; or (p) take any action or agree to take any
action which would make any of the representations and warranties contained in
the Merger Agreement untrue or incorrect.
 
  Prior to the Effective Time, unless Logicon shall otherwise agree in
writing, Northrop will, and will cause its subsidiaries, to conduct their
operations in the ordinary course of business consistent with past practice
and to use no less diligence and effort than would be applied in the absence
of the Merger Agreement to preserve intact
 
                                      39
<PAGE>
 
their current business organizations, keep available the services of their
current officers and employees and preserve their relationships with
customers, suppliers and others having business dealings with them to the end
that their goodwill and on-going businesses shall be unimpaired at the
Effective Time.
 
  Except for certain exceptions set forth in the Merger Agreement, neither
Northrop nor any of its subsidiaries will, without the prior written consent
of Logicon: (a) knowingly take any action that would fail to maintain the
trading of Northrop Common Stock on the NYSE; (b) declare or pay any dividend
or other distribution (except for quarterly cash dividends not to exceed $0.40
per share, dividends payable in Northrop Common Stock or dividends by a
subsidiary of Northrop to Northrop or another subsidiary of Northrop); (c)
make any acquisition of any business organization which would materially
prevent or delay for more than 30 days the transactions contemplated by the
Merger Agreement; (d) adopt or propose to adopt any amendments to its
Certificate of Incorporation in a manner that adversely impacts the
transactions contemplated by the Merger Agreement; or (e) take any action or
agree to take any action which would make any of the representations and
warranties contained in the Merger Agreement untrue or incorrect.
 
NO SOLICITATION OF TRANSACTIONS
 
  Logicon has agreed to immediately cease discussions with any parties with
respect to any Third Party Acquisition. Neither Logicon nor any affiliated
entity will nor will Logicon authorize or permit any of its or their
respective officers, directors, employees, representatives or agents, to
directly or indirectly, encourage, solicit, participate in or initiate
discussions or negotiations with, or provide any non-public information to,
any person or group (other than Northrop and Acquisition, or any designee)
concerning any Third Party Acquisition. Logicon will promptly notify Northrop
in the event it receives any proposal or inquiry concerning a Third Party
Acquisition including the terms and conditions thereof and the identity of the
party submitting such proposal; and will advise Northrop from time to time of
the status and any material developments concerning the same.
 
  "Third Party Acquisition" means the occurrence of any of the following
events: (a) the acquisition of Logicon by merger or otherwise by any person
(which includes a "person" as such term is defined in Section 13(d)(3) of the
Exchange Act) other than Northrop, Acquisition or any affiliate thereof (a
"Third Party"); (b) the acquisition by a Third Party of more than 20% of the
total assets of Logicon and its subsidiaries, taken as a whole; (c) the
acquisition by a Third Party of 20% or more of the outstanding shares of
Logicon Common Stock; (d) the adoption by Logicon of a plan of liquidation or
the declaration or payment of an extraordinary dividend; (e) the repurchase by
Logicon or any of its subsidiaries of more than 20% of the outstanding shares
of Logicon Common Stock; or (f) the acquisition by Logicon or any subsidiary,
by merger, purchase of stock or assets, joint venture or otherwise, of a
direct or indirect ownership interest or investment in any business whose
annual revenues, net income or assets is equal or greater than 20% of the
annual revenues, net income or assets of Logicon. A "Superior Proposal" means
any bona fide proposal to acquire, directly or indirectly, for consideration
consisting of cash and/or securities, more than 50% of the shares of Logicon
Common Stock then outstanding or all or substantially all the assets of
Logicon and otherwise on terms which the Board of Directors by a majority vote
determines in its good faith judgment (based on the written advice of a
financial adviser of nationally recognized reputation) to be more favorable to
Logicon's stockholders than the Merger.
 
  The Board of Directors may not withdraw its recommendation of the Merger or
approve or recommend, or cause Logicon to enter into, any agreement with
respect to, any Third Party Acquisition. The Board of Directors may withdraw
such recommendation or recommend a Superior Proposal if the Board of Directors
determines in its good faith judgment, after consultation with and based upon
the advice of independent legal counsel, that it is required to do so in order
to comply with its fiduciary duties, but in each case only (a) after providing
reasonable written notice to Northrop (a "Notice of Superior Proposal")
advising Northrop that the Board of Directors has received a Superior
Proposal, specifying the material terms and conditions of such Superior
Proposal and identifying the person making such Superior Proposal and (b) if
Northrop does not, within five business days of Northrop's receipt of the
Notice of Superior Proposal, make an offer which the Board of Directors by a
majority vote determines in its good faith judgment (based on the written
advice of a financial adviser of nationally
 
                                      40
<PAGE>
 
recognized reputation) to be as favorable to the Logicon's stockholders as
such Superior Proposal; provided, however, that the Board of Directors shall
not be entitled to enter into any agreement with respect to a Superior
Proposal unless and until the Merger Agreement is terminated by its terms,
including the payment to Northrop of the Termination Fee.
 
EMPLOYEE BENEFIT PLANS
 
  The treatment under the Merger Agreement of stock options to acquire shares
of Logicon Common Stock is described under "The Merger--Interests of Certain
Persons in the Merger."
 
  Logicon maintains a number of employee benefit plans and compensation
arrangements in which eligible employees of Logicon and certain of its
affiliates participate. Northrop will provide the employees and retirees of
Logicon and its subsidiaries for a period ending on the first anniversary of
the Effective Time with compensation and employee benefit plans (other than
stock option or other plans involving the potential issuance or purchase of
securities of Logicon or Northrop) which, in the aggregate, are comparable to
those currently provided by Logicon and its subsidiaries. Northrop and Logicon
have agreed, and Northrop will cause the Surviving Corporation to agree,
(a) that the "change of control" or similar provisions in existing employment
agreements, and termination and severance agreements with executive officers,
will be honored in accordance with their terms as of the date of the Merger
Agreement, and (b) that the RSPP of Logicon will continue in effect with
respect to the shares issued thereunder and Northrop Common Stock issued in
exchange therefor pursuant to the Merger, and appropriate adjustments will be
made to the RSPP such that following the Effective Time such shares of
Northrop Common Stock shall be held substantially in accordance with the terms
of the RSPP.
 
POOLING OF INTERESTS ACCOUNTING TREATMENT
 
  Each of Logicon and Northrop agreed to use all reasonable efforts to obtain
from any Logicon affiliate or Northrop affiliate, respectively, a letter
agreement stating that such affiliate will not sell or otherwise reduce his
risk, with respect to any Logicon affiliate, in any Northrop Common Stock
received in the Merger or, with respect to any Northrop affiliate, any
Northrop Common Stock owned by such affiliate, until such time as financial
results covering at least 30 days of post-merger operations have been
published, except as permitted by Staff Accounting Bulletin No. 76 issued by
the Commission. Each of Northrop, Acquisition and Logicon have agreed to use
all reasonable efforts to cause the Merger to be treated for financial
accounting purposes as a "pooling of interests" transaction, and to prevent
any actions which could prevent such treatment.
 
INDEMNIFICATION
 
  The Surviving Corporation has agreed to indemnify and hold harmless each
person who is or was an officer or director of Logicon or any of its
subsidiaries against all losses, claims, damages, costs, expenses, settlement
payments or liabilities based on or arising out of the fact that such person
is or was an officer or director of Logicon or any of its subsidiaries, or the
Merger Agreement or the transactions contemplated thereby, in each case to the
fullest extent permitted under applicable law or the Surviving Corporation's
certificate of incorporation or bylaws. Northrop has agreed to guarantee the
payment and performance of the Surviving Corporation's indemnity obligations
under the Merger Agreement. The indemnification provision of the Merger
Agreement shall not limit or otherwise adversely affect any rights of any
person indemnified thereunder under any agreement with Logicon or Logicon's
Certificate of Incorporation or Bylaws.
 
CERTAIN OTHER COVENANTS
 
  Northrop, Acquisition and Logicon have agreed to take certain other actions
with respect to the Merger, including (a) Northrop and Logicon will promptly
prepare and file with the Commission the Proxy Statement/Prospectus and the
Registration Statement, and each use its best efforts to have the Registration
Statement declared effective as promptly as practicable after such filing; (b)
Northrop will take any required
 
                                      41
<PAGE>
 
action under state securities laws with respect to the issuance of Northrop
Common Stock pursuant to the Merger; (c) Northrop and Logicon will use all
reasonable efforts to cause each of Deloitte & Touche LLP, the independent
auditor of Northrop, and Price Waterhouse LLP, the independent auditor of
Logicon, to deliver a letter customary in scope and substance for agreed upon
procedures letters delivered by independent public accountants in connection
with registration statements and proxy statements similar to the Registration
Statement and this Proxy Statement/Prospectus; (d) Logicon will take all
action necessary in accordance with the DGCL, and its respective charter and
bylaws, to hold a meeting of stockholders as promptly as practicable to
approve and adopt the Merger Agreement and the transactions contemplated
thereby; (e) Northrop will use its best efforts to list the Northrop Common
Stock issued pursuant to the Merger on the NYSE; (f) Northrop and Logicon will
give the other reasonable access to, and permit reasonable inspection of,
employees, facilities, books and records of itself and its subsidiaries; (g)
Northrop and Logicon will use all reasonable efforts under applicable laws and
regulations to consummate and make effective the transactions contemplated by
the Merger Agreement (including preparing and filing this Proxy
Statement/Prospectus and Registration Statement, and filings under the HSR
Act, obtaining all necessary consents, contesting any legal proceeding
relating to the Merger and executing any additional documents necessary to
consummate the Merger); (h) Northrop, Acquisition and Logicon will consult
with each other before issuing any press release or other public statements
with respect to the Merger Agreement or any transactions contemplated thereby;
and (i) Northrop, Acquisition and Logicon will give prompt notice to one
another of any event which would be likely to cause any of their
representations or warranties to be untrue or inaccurate in any material
respect or any material failure to comply with or satisfy any covenant,
condition or agreement to be satisfied or complied with under the Merger
Agreement.
 
TERMINATION; FEES AND EXPENSES
 
  The Merger Agreement may be terminated at any time prior to the Effective
Time, whether before or after approval and adoption of the Merger Agreement by
the stockholders of Logicon: (a) by mutual consent of Northrop, Acquisition
and Logicon; or (b) by Northrop and Acquisition or Logicon if the Merger has
been enjoined or otherwise prohibited by a final nonappealable court order or
other governmental action, or the Merger shall not have been consummated by
September 30, 1997 (provided the terminating party's failure to fulfill its
obligations under the Merger Agreement is not the reason that the Merger has
not been consummated).
 
  The Merger Agreement may be terminated by Logicon at any time prior to the
Effective Time, whether before or after approval and adoption of the Merger
Agreement by the stockholders of Logicon, if (a) any representation or
warranty of Northrop or Acquisition is breached or becomes untrue and cannot
be cured by September 30, 1997, (b) a breach of the Merger Agreement by
Northrop or Acquisition which would have a Material Adverse Effect on Northrop
or materially adversely affect or delay the consummation of the Merger has not
been cured within 20 business days after notice by Logicon; (c) the Merger
Agreement is not approved and adopted by the requisite vote of Logicon
stockholders at the Special Meeting; or (d) the Board of Directors has
received a Superior Proposal, and has complied with certain provisions as set
forth in the Merger Agreement, including the payment to Northrop of the
Termination Fee.
 
  The Merger Agreement may be terminated by Northrop and Acquisition at any
time prior to the Effective Time, whether before or after approval and
adoption of the Merger Agreement by the stockholders of Logicon, if (a) any
representation or warranty of Logicon is breached or becomes untrue and cannot
be cured by September 30, 1997, (b) a breach of the Merger Agreement by
Logicon which would have a Material Adverse Effect on Logicon or materially
adversely affect or delay the consummation of the Merger has not been cured
within 20 business days after notice by Logicon; (c) the Board of Directors
shall have recommended to the Logicon stockholders a Superior Proposal; (d)
the Board of Directors has withdrawn or materially weakened its recommendation
of the Merger Agreement or the Merger; or (e) the Merger Agreement is not
approved and adopted by the requisite vote of Logicon stockholders at the
Special Meeting.
 
                                      42
<PAGE>
 
  Logicon will be required to pay Northrop the Termination Fee in the event
that:
 
  (a) the Merger Agreement is terminated by Northrop and Acquisition because
the Board of Directors shall have recommended to stockholders a Superior
Proposal, or by Logicon if the Board of Directors has received a Superior
Proposal;
 
  (b) the Merger Agreement is terminated by Northrop and Acquisition because
(i) there shall have been a breach of any representation or warranty on the
part of Logicon or if any representation or warranty of Logicon shall have
become untrue, and such breach shall not have been cured or such
representation or warranty shall not have been made true within twenty
business days after notice by Northrop or Acquisition, or (ii) there shall
have been a breach by Logicon of its covenants or agreements under the Merger
Agreement which would have a material adverse effect on Logicon or materially
adversely affecting or delaying the consummation of the Merger, and Logicon
has not cured such breach within twenty business days after notice by Northrop
and Acquisition, and, within twelve months thereafter, Logicon enters into an
agreement with respect to a Third Party Acquisition or a Third Party
Acquisition occurs involving any party with whom Logicon had negotiations with
a view to a Third Party Acquisition, to whom Logicon had furnished information
with a view to a Third Party Acquisition, or who had submitted a proposal or
expressed an interest in a Third Party Acquisition after the date of the
Merger Agreement and prior to such termination;
 
  (c) the Merger Agreement is terminated by Logicon or Northrop and
Acquisition because Logicon shall have convened a meeting of its stockholders
to vote upon the Merger and shall have failed to obtain the requisite vote of
its stockholders at such meeting (including any adjournments thereof), and at
the time of such meeting there shall be outstanding an offer by a Third Party
involving the payment of consideration to stockholders of Logicon with a value
in excess of the Merger Consideration and with twelve months thereafter
Logicon enters into an agreement with respect to such Third Party Acquisition
or such Third Party Acquisition occurs; or
 
  (d) Logicon shall have withdrawn or materially weakened its recommendation
of the Merger Agreement or the Merger following the receipt of an offer by a
Third Party to consummate a Third Party Acquisition involving the payment of
consideration to stockholders of the Company with a value in excess of the
Merger Consideration.
 
  If the Merger Agreement is terminated by Logicon because the Merger
Agreement is not approved and adopted by the requisite vote of Logicon
stockholders at the Special Meeting, or if the Merger Agreement is terminated
by Northrop or Acquisition because (a) Logicon breached one of its
representations, warranties or covenants or (b) the Merger Agreement is not
approved and adopted by the requisite vote of Logicon stockholders at the
Special Meeting, as each is more fully described above, Logicon shall be
obligated (unless payment of the Termination Fee is required) to reimburse
Northrop and Acquisition for all actual documented out-of-pocket fees and
expenses, not to exceed $3 million, actually and reasonably incurred in
connection with the Merger and the transactions contemplated thereby, in
addition to any other remedies that Northrop and Acquisition may have.
 
  If the Merger Agreement is terminated by Logicon because of a breach by
Northrop or Acquisition of their representations, warranties or covenants, as
each is more fully described above, Northrop shall be obligated to reimburse
Logicon for all actual documented out-of-pocket fees and expenses, not to
exceed $3 million, actually and reasonably incurred in connection with the
Merger and the transactions contemplated thereby, in addition to any other
remedies that Logicon may have.
 
  In all other cases, Northrop, Acquisition and Logicon will each bear their
own expenses.
 
AMENDMENT; WAIVER
 
  The Merger Agreement provides that it may be amended by action of the
parties thereto, at any time before or after approval of the Merger by the
stockholders of Logicon, but, after such approval, no amendment shall be
 
                                      43
<PAGE>
 
made which requires the approval of such stockholders under applicable law
without such approval. The Merger Agreement may not be amended except by an
instrument in writing signed on behalf of each of Northrop, Acquisition and
Logicon.
 
  At any time prior to the Effective Time, the parties to the Merger Agreement
may (a) extend the time for the performance of any of the obligations or other
acts of the other parties thereto; (b) waive any inaccuracies in the
representations and warranties contained therein or in any documents delivered
pursuant thereto; or (c) waive any other party's compliance with any of the
agreements or conditions contained therein. Any agreement on the part of a
party to the Merger Agreement to any such extension or waiver shall be valid
only if set forth in an instrument in writing signed on behalf of such party.
 
                                      44
<PAGE>
 
                     DESCRIPTION OF NORTHROP CAPITAL STOCK
 
AUTHORIZED CAPITAL STOCK
 
  Under the Northrop Certificate, the total number of shares of stock which
Northrop has authority to issue is 210,000,000, consisting of 200,000,000
shares of Northrop Common Stock, par value $1.00 per share, and 10,000,000
shares of Preferred Stock, $1.00 par value per share ("Northrop Preferred
Stock"). As of May 31, 1997, 58,049,635 shares of Northrop Common Stock were
issued and outstanding, not including shares reserved for issuance under
Northrop's stock plans. No shares of Northrop Preferred Stock were issued and
outstanding on such date. Northrop Common Stock is listed on the NYSE and the
PE.
 
PREFERRED STOCK
 
  Under the Northrop Certificate, the Northrop Board of Directors is
authorized, without further stockholder action, to provide for the issuance of
Northrop Preferred Stock in one or more series, with such designations of
titles, dividend rates, redemption provisions, special or relative rights in
the event of liquidation, dissolution, distribution or winding up of Northrop,
sinking fund provisions, conversion provisions, voting rights, and any other
preferences, privileges, powers, rights, qualifications, limitations and
restrictions, as shall be set forth as and when established by the Northrop
Board of Directors.
 
COMMON STOCK
 
  The holders of Northrop Common Stock are entitled to receive such dividends
as may be declared from time to time by the Northrop Board of Directors out of
funds legally available therefor subject to restrictions on the declaration of
dividends on Northrop Common Stock which may be imposed in connection with the
issuance of shares of any class or series of Northrop Preferred Stock.
Northrop's principal credit agreement contains provisions restricting
dividends and other distributions and the purchase or redemption of shares of
Northrop Common Stock under certain circumstances. Except as otherwise
provided by law, the holders of Northrop Common Stock are entitled to one vote
per share on all matters submitted to a vote of stockholders and do not have
cumulative voting rights. Holders of Northrop Common Stock are entitled to
receive, upon any liquidation of Northrop, all remaining assets available for
distribution to stockholders after satisfaction of Northrop's liabilities and
the preferential rights of any Northrop Preferred Stock that may then be
issued and outstanding. The outstanding shares of Northrop Common Stock are,
and the shares offered hereby will be, fully paid and nonassessable. The
holders of Northrop Common Stock have no preemptive, conversion or redemption
rights. The registrar and transfer agent for Northrop Common Stock is
ChaseMellon Shareholder Services, L.L.C., New York.
 
COMMON STOCK PURCHASE RIGHTS
 
  For a description of the Northrop stockholder rights plan, see "Comparison
of Stockholder Rights--Northrop Rights Plan."
 
                                      45
<PAGE>
 
                       COMPARISON OF STOCKHOLDER RIGHTS
 
GENERAL
 
  As a result of the Merger, holders of Logicon Common Stock will become
holders of Northrop Common Stock and the rights of all such former holders of
Logicon Common Stock will thereafter be governed by the Northrop Certificate,
the Northrop Bylaws, the Northrop Rights Agreement and the DGCL. The rights of
the holders of Logicon Common Stock are presently governed by the Logicon
Certificate, the Logicon Bylaws, the Logicon Rights Agreement and the DGCL.
The following summary, which does not purport to be a complete statement of
all of the differences among the rights of the stockholders of Northrop and
Logicon, sets forth certain differences between the Northrop Certificate and
the Logicon Certificate, between the Northrop Bylaws and the Logicon Bylaws
and between the Northrop Rights Agreement and the Logicon Rights Agreement.
This summary is qualified in its entirety by reference to the full text of
each of such documents and the DGCL. For information as to how such documents
may be obtained, see "Available Information."
 
SIZE AND CLASSIFICATION OF THE BOARD OF DIRECTORS
 
  Northrop. The Northrop Bylaws provide that the number of directors is to be
fixed from time to time by resolution of the Northrop Board of Directors, but
shall not be less than three, except in connection with rights to elect
directors under certain specified circumstances which may be granted to the
holders of any class or series of Preferred Stock (which applies to all
provisions regarding the Northrop Board of Directors). The Northrop Board of
Directors currently consists of eleven (11) directors. The Northrop Board of
Directors is divided into three classes by the Northrop Certificate, with each
class consisting as nearly as possible of one-third of the directors. At each
annual election, directors are chosen for a full three-year term to succeed
those whose terms expire.
 
  Logicon. The Logicon Bylaws provide that the number of directors of Logicon
shall be seven and that the Board of Directors may from time to time increase
or decrease the number of directors by amendment to the bylaws, but the number
may not be increased or decreased by more than two within any twelve-month
period, except upon the affirmative vote or written consent of the holders of
at least 75% of the outstanding voting stock. The Board of Directors is
divided into three classes by the Logicon Bylaws as follows: Class I, two
directors; Class II, two directors; and Class III, three directors. At each
annual election, directors are chosen for a full three-year term to succeed
those whose terms expire.
 
  Pursuant to the Merger Agreement, the board of directors of the Surviving
Corporation shall consist of the current directors of Acquisition. See "The
Merger Agreement--The Merger."
 
REMOVAL OF DIRECTORS; FILLING VACANCIES ON THE BOARD OF DIRECTORS
 
  Northrop. The Northrop Certificate provides that any director may be removed
from office only for cause and only by the affirmative vote of 80% of all
voting stock in connection with the election of such director; provided,
however, that where such removal is approved by a majority of the remaining
directors then in office, the affirmative vote of a majority of the voting
power of all outstanding shares shall be sufficient for approval of such
removal. Newly created directorships any vacancies on the Northrop Board of
Directors shall be filled solely by the affirmative vote of a majority of the
remaining directors then in office, even though less than a quorum.
 
  Logicon. No reduction in the authorized number of directors shall remove any
director prior to the expiration of such director's term, pursuant to the
Logicon Bylaws. The Logicon Certificate provides that any vacancy occurring on
the Board of Directors from death, resignation or removal of a director, or
through an increase in the number of directors, shall be filled by a majority
vote of the remaining directors. The term of office of any such director shall
expire at the expiration of the term of office of the departed director.
 
                                      46
<PAGE>
 
STOCKHOLDER ACTION BY WRITTEN CONSENT
 
  Under the DGCL, unless otherwise provided in the certificate of
incorporation, stockholders may take action without a meeting, without prior
notice and without a vote, upon the written consent of stockholders having not
less than the minimum number of votes that would be necessary to authorize the
proposed action at a meeting at which all shares entitled to vote were present
and voted.
 
  Northrop. The Northrop Certificate provides that any action is to be taken
by stockholders at an annual or special meeting of stockholders, unless such
action is approved by a majority of the board of directors, in which case such
action may be authorized or taken by the written consent of the holders of
voting stock having not less than the minimum voting power necessary to
authorize or take such action at a meeting of stockholders.
 
  Logicon. The Logicon Bylaws specifically provide that any action which may
be taken at a meeting of stockholders may be taken by written consent in
accordance with the DGCL.
 
SPECIAL MEETINGS OF STOCKHOLDERS
 
  Northrop. The Northrop Certificate permits a special meeting of stockholders
to be called for any purpose at any time by a majority of the Northrop Board
of Directors or by the Chairman of the Board, but not by any other person.
Under the DGCL, unless the certificate of incorporation or the bylaws provide
otherwise, stockholders holding at least a majority of the voting power are
necessary to constitute a quorum for the transaction of business. The Northrop
Bylaws provide that the presence, in person or by proxy, of a majority of the
voting stock entitled to vote at a meeting constitutes a quorum for the
transaction of business at that meeting.
 
  Logicon. Pursuant to the Logicon Bylaws, a special meeting of stockholders
for any purpose permitted under the DGCL may be called at any time by the
Chairman of the Board of Directors or the President, by the Board of Directors
or by a committee of the Board of Directors which has been duly designated by
the Board of Directors and whose powers include the power to call such
meetings. The Logicon Bylaws provide that the holders of a majority in voting
interest of shares outstanding and entitled to vote at a meeting, present in
person or by proxy, constitutes a quorum at such meeting.
 
REQUIRED VOTE FOR AUTHORIZATION OF CERTAIN ACTIONS
 
  Under the DGCL, the recommendation of the board of directors and the
approval of a majority of the outstanding shares of a corporation entitled to
vote thereon are required to effect a merger or consolidation or to sell,
lease or exchange substantially all of a corporation's assets. No vote of the
stockholders of a corporation is required in connection with a merger if (a)
the corporation is the surviving corporation, (b) the merger agreement did not
amend the corporation's certificate of incorporation, (c) each share of stock
of the corporation outstanding immediately before the merger was an identical
outstanding or treasury share of the corporation after such merger and (d) the
number of shares of the corporation's common stock to be issued in the merger
(or to be issuable upon conversion of any convertible instruments to be issued
in the merger) did not exceed twenty percent of the shares of stock of the
corporation outstanding immediately before the merger.
 
  Northrop. The Northrop Certificate requires approval of a business
combination with an interested stockholder (as defined therein) by the
affirmative vote of the holders of 80% of the outstanding shares of Northrop
entitled to vote thereon. This supermajority threshold is inapplicable under
the Northrop Certificate if a majority of the continuing directors (as defined
therein) approves the combination or if certain price or procedural
requirements have been satisfied. See "Conflict-of-Interest Transactions"
below.
 
  Logicon. The Logicon Certificate requires approval by the affirmative vote
of the holders of a majority of the outstanding shares of Logicon entitled to
vote thereon for any plan of merger or consolidation to which Logicon is a
party, or a sale, lease or other disposition of all or substantially all of
the assets of Logicon, except to a "related entity," which requires the vote
of 75% of the outstanding shares.
 
                                      47
<PAGE>
 
AMENDMENT OF CORPORATE CHARTER AND BYLAWS
 
  Under the DGCL, an amendment to the certificate of incorporation generally
requires the recommendation of the board of directors, the approval of the
holders of a majority of all shares entitled to vote thereon, voting together
as a single class, and the holders of a majority of the outstanding stock of
each class entitled to vote thereon. The DGCL further provides that the board
of directors may amend the bylaws if the bylaws so provide. However, even if
the bylaws confer such power on the board of directors, under the DGCL, the
stockholders also have the power to amend the bylaws.
 
  Northrop. The Northrop Certificate provides that the Northrop Board of
Directors shall have the power to adopt or amend bylaws, and the Northrop
Bylaws provide that the Northrop Board of Directors may adopt or amend bylaws
as provided in the Northrop Certificate. The Northrop Bylaws may also be
adopted, repealed, rescinded, altered or amended by the affirmative vote of
the holders of not less than 80% of the voting power of all outstanding shares
of Northrop and where such action is proposed by an Interested Shareholder (as
defined therein), by the majority of the voting power of all outstanding
shares of Northrop, voting together as a single class, other than shares held
by such person; provided, however, that where such action is approved by a
majority of the Northrop Board of Directors, the affirmative vote of a
majority of the voting power of all outstanding shares shall be required for
approval of such action. The Northrop Certificate provides that certain
specified articles may not be repealed or otherwise amended in any respect
except pursuant to the procedures outlined above.
 
  Logicon. The Logicon Certificate states that the directors may amend, adopt
and repeal the bylaws. The Logicon Bylaws state that the directors and
stockholders have concurrent and independent power to make, alter or otherwise
amend the Logicon Bylaws, subject to restrictions in the Logicon Certificate
relating to changing the number of directors.
 
APPRAISAL AND DISSENTERS' RIGHTS
 
  Under the DGCL, the holders of Northrop Common Stock and Logicon Common
Stock are not entitled to any appraisal rights with respect to the Merger.
Section 262 of the DGCL provides appraisal rights to stockholders of Delaware
corporations in connection with certain mergers and consolidations. However,
under such section, appraisal rights are not available to the stockholders of
a corporation that is a party to a merger if the corporations' stock is listed
on a national securities exchange as of the record date set to determine the
stockholders entitled to receive notice of and to vote at the meeting of
stockholders to approve the merger so long as the consideration to be received
by such stockholders in the merger consists of (a) shares of the capital stock
of the surviving corporation in the merger, (b) shares of the capital stock of
any other corporation provided that such stock is listed on a national
securities exchange as of the date on which the merger becomes effective, (c)
cash in lieu of fractional shares or (d) a combination of the foregoing.
 
  Northrop and Logicon. Under the DGCL, the holders of Northrop Common Stock
and Logicon Common Stock are not entitled to any appraisal rights with respect
to the Merger for the reasons set forth above.
 
LIMITATION ON DIRECTORS' LIABILITY
 
  Section 102 of the DGCL allows a corporation to limit or eliminate the
personal liability of directors for breach of their fiduciary duty as a
director, subject to certain limitations.
 
  Northrop and Logicon. The Northrop Certificate and the Logicon Certificate
provide for the limitation of the liability of directors to the fullest extent
permitted by the DGCL. Under the DGCL, such a provision may not limit the
liability of a director (a) for any breach of the director's duty of loyalty
to such corporation or its stockholders, (b) for acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of law,
(c) for intentional or negligent payment of unlawful dividends or stock
purchase or redemption or (d) for any transaction from which such director
derives an improper personal benefit.
 
                                      48
<PAGE>
 
INDEMNIFICATION OF OFFICERS AND DIRECTORS
 
  Section 145 of the DGCL provides that a corporation may indemnify its
officers and directors who were or are a party to any action, suit or
proceeding by reason of the fact that he or she was a director, officer, or
employee of the corporation; provided that such officers and directors acted
in good faith and in a manner they reasonably believed to be in or not opposed
to the best interests of the corporation.
 
  Northrop and Logicon. The Northrop Bylaws and the Logicon Bylaws provide, in
substance, that each person made a party, or threatened to be made a party, to
any type of proceeding, by reason of the fact that he or she is or was a
director or officer of such corporation or that, being or having been such a
director or officer or an employee of such corporation, he or she is or was
serving at the request of an executive officer of such corporation as a
director, officer, employee or agent of another corporation, will be
indemnified and held harmless by such corporation to the full extent permitted
by the DGCL, against all expense, liability and loss actually and reasonably
incurred by such person in connection therewith.
 
CUMULATIVE VOTING
 
  In an election of directors governed by cumulative voting rights, each share
of stock otherwise having one vote is entitled to a number of votes equal to
the number of directors to be elected. A stockholder may then cast all such
votes for a single nominee or may allocate them among as many nominees as the
stockholder may choose. Without cumulative voting rights, the holders of a
majority of the shares present at an annual meeting or any special meeting
held to elect directors would have the power to elect all the directors to be
elected at that meeting, and it is possible that no person could be elected
without the support of holders of a majority of the shares voting at such
meeting.
 
  Northrop and Logicon. Although permitted by the DGCL, the Northrop
Certificate and the Logicon Certificate do not provide for cumulative voting
for directors.
 
CONFLICT-OF-INTEREST TRANSACTIONS
 
  The DGCL generally permits transactions involving a Delaware corporation and
an interested director or officer of that corporation if (a) the material
facts are disclosed and a majority of disinterested directors consents, (b)
the material facts are disclosed and a majority of shares entitled to vote
thereon consents or (c) the transaction is fair to the corporation at the time
it is authorized by the board of directors, a committee, or the stockholders.
 
  Northrop. The Northrop Certificate provides certain restrictions on business
combinations with "interested stockholders" or their affiliates. Approval of a
business combination with an interested stockholder requires the affirmative
vote of 80% of the outstanding shares entitled to vote in the election of
directors under the Northrop Certificate. This supermajority threshold is
inapplicable if a majority of the continuing directors approve the combination
or if certain price and procedural requirements have been satisfied.
 
  Logicon. The Logicon Certificate provides that the affirmative vote or
written consent of the holders of not less than 75% of the outstanding voting
stock of Logicon is required for any merger or consolidation with or into a
"related entity," sale of substantially all of the assets of Logicon to a
"related entity" or issuance to a "related entity" during any 12-month period
of securities representing 5% or more of the voting power of Logicon.
 
DIVIDENDS AND OTHER DISTRIBUTIONS
 
  The DGCL generally allows dividends to be paid out of surplus of the
corporation or in case there is no surplus, out of the net profits of the
corporation for the current fiscal year and/or the prior fiscal year.
 
                                      49
<PAGE>
 
  Northrop and Logicon. Dividends on Northrop Common Stock are payable at the
discretion of the Northrop Board of Directors out of funds legally available
therefor. The Logicon Certificate makes similar provisions with respect to
Logicon Common Stock.
 
NORTHROP RIGHTS PLAN
 
  General. On September 21, 1988, the Northrop Board of Directors authorized
the distribution of one Northrop Right for each share outstanding of Northrop
Common Stock. The distribution was made as of October 5, 1988 to stockholders
of record on such date, and the Northrop Board of Directors authorized the
issuance of one Northrop Right for each additional share of Northrop Common
Stock that becomes outstanding after such date and prior to the time that the
Northrop Rights become nonredeemable or expire. Until the Northrop Rights
become exercisable, they are attached to and trade only together with the
Northrop Common Stock, and are evidenced by a legend printed on the Northrop
Common Stock certificates. The Northrop Rights expire on October 5, 1998.
 
  As described below, upon the occurrence of certain events the Northrop
Rights become exercisable, at the option of the holders, to purchase Northrop
Common Stock, or common stock of a successor company. On the date of the first
public announcement that any person has become the owner of 15% or more of the
Common Stock (the "Stock Acquisition Date"), all Northrop Rights owned by such
person (an "Acquiring Person") will become void.
 
  Exercise of Rights to Purchase Common Stock of Northrop. On the tenth
business day after the date of the first public announcement of a tender or
exchange offer that, if successful, would result in any person being the owner
of 30% or more of the Common Stock, each Northrop Right will become
exercisable to purchase, at the exercise price of $105 (the "Purchase Price"),
one share of Northrop Common Stock.
 
  In the event that (a) an Acquiring Person merges into or otherwise combines
or consolidates with Northrop and Northrop is the surviving corporation, (b)
an Acquiring Person engages in one or more self-dealing transactions specified
in the Northrop Rights Agreement, or (c) a person becomes the owner of 15% or
more of the general voting power of Northrop, then each holder of Northrop
Rights may receive upon exercise that number of shares of Northrop Common
Stock having a market value of two times the Purchase Price.
 
  Exercise of Rights to Purchase Common Stock of a Successor Company. In the
event that after the tenth business day after a Stock Acquisition Date,
Northrop is acquired in a merger or other business combination transaction in
which Northrop is not the surviving corporation, then each holder of Rights
may receive upon exercise that number of shares of stock of the surviving
corporation having a market value of two times the Purchase Price.
 
  Antidilution Adjustments. In order to prevent dilution upon the occurrence
of certain events (including stock dividends and stock splits but not
including regular cash dividends), the Northrop Rights Agreement provides for
adjustments to the Purchase Price, the number of outstanding Northrop Rights
and the number of shares of Northrop Common Stock issuable upon exercise of a
Northrop Right. With certain exceptions, no adjustment in the Purchase Price
will be required until cumulative adjustments require an adjustment of at
least 1% in such Purchase Price.
 
  Redemption of Rights. The Northrop Board of Directors may redeem all, but
not less than all, of the Northrop Rights, at a price of $0.02 per Northrop
Right, at any time up to and including the Stock Acquisition Date.
 
  Amendment of Rights Agreement. The Northrop Board may amend any of the
provisions of the Northrop Rights Agreement prior to the Distribution Date.
From and after the Distribution Date, the Northrop Board of Directors may
amend the provisions of the Northrop Rights Agreement in order to cure any
ambiguity, to make changes which do not adversely affect the interests of the
holders of Northrop Rights or to shorten or lengthen any time period under the
Northrop Rights Agreement, except under certain limited circumstances
specified therein.
 
 
                                      50
<PAGE>
 
  Each share of Northrop Common Stock issued in connection with the Merger
will be accompanied by a Northrop Right. The description and terms of the
Northrop Rights are set forth in the Northrop Rights Agreement, a copy of
which is filed as an exhibit to the Registration Statement.
 
LOGICON RIGHTS PLAN
 
  General. On April 6, 1990, the Board of Directors of Logicon (a) declared a
dividend of one common stock purchase right (a "Logicon Right") for each share
of Logicon Common Stock, payable on May 15, 1990 to stockholders of record on
that day, and (b) authorized the issuance of one Logicon Right for each share
of Logicon Common Stock issued at any time after May 15, 1990 and prior to the
time that the Logicon Rights become nonredeemable or expire. Until the Logicon
Rights become exercisable, they are attached to and trade only together with
the Logicon Common Stock, and are evidenced by a legend printed on the Logicon
Common Stock certificates. The Logicon Rights expire on May 15, 2000.
 
  As described below, upon the occurrence of certain events the Logicon Rights
become exercisable, at the option of the holders, to purchase Logicon Common
Stock, or common stock of a successor company. On the date of the first public
announcement that any person has become the owner of 20% or more of Logicon
Common Stock (the "Distribution Date"), all Rights owned by that person (an
"Acquiring Person") will become void.
 
  Exercise of Rights to Purchase Common Stock of Logicon. On the tenth
business day after the earlier of (a) the Distribution Date (b) the date of
the commencement or announcement of a tender or exchange offer that, if
successful, would result in any person being the owner of 20% or more of
Logicon Common Stock or (c) the acquisition by any person declared by the non-
officer members of the Board of Directors to be an "Adverse Person" of 15% or
more of the general voting power of Logicon, each Right will become
exercisable to purchase, at the Purchase Price (as defined below), shares of
Logicon Common Stock. The initial Purchase Price as defined in the Logicon
Rights Agreement is $115, subject to adjustment which provides in substance
that a holder of Logicon Rights, other than an Acquiring Person or an Adverse
Person, will purchase shares of Logicon Common Stock or equivalents having a
market value of two times the Purchase Price.
 
  Exercise of Rights to Purchase Common Stock of a Successor Company. If, on
or after the Distribution Date (a) Logicon is acquired in a merger or other
transaction in which Logicon does not survive or (b) 50% or more of Logicon's
consolidated assets or earning power are sold (other than in the ordinary
course of business), then each Right not owned by an Acquiring Person will
become exercisable to purchase, at the Purchase Price, shares of common stock
of the surviving or acquiring company having an aggregate market value equal
to two times the Purchase Price. If the surviving or acquiring company does
not have sufficient common stock to permit the exercise in full of all Rights,
or is not publicly held, then each Right may be put to the surviving or
acquiring company for a cash payment equal to the Purchase Price.
 
  Antidilution Adjustments. In order to prevent dilution upon the occurrence
of certain events (including stock dividends and stock splits but not
including regular cash dividends), the Logicon Rights Agreement provides for
adjustments to the Exercise Price, the number of outstanding Logicon Rights
and the number of shares of Logicon Common Stock or other securities or
property issuable upon exercise of a Logicon Right. With certain exceptions,
no adjustments in the Purchase Price are required until cumulative adjustments
require an adjustment of at least 1% in such Purchase Price.
 
  Redemption of Rights. The Board of Directors may redeem the Logicon Rights
in whole, but not in part, at a price of $0.01 per Right, up to and including
the tenth business day after a public announcement that an Acquiring Person
has become such.
 
  Amendment of Rights Agreement. The Board of Directors may amend the Logicon
Rights Agreement without the consent of the holders of Logicon Rights at any
time prior to the Distribution Date. Thereafter, the Board of Directors may
only amend the Logicon Rights Agreement to make changes which do not adversely
affect the interests of the holders of Logicon Rights.
 
                                      51
<PAGE>
 
        SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
CERTAIN STOCKHOLDERS OF LOGICON
 
  The information required herein is hereby incorporated by reference to
Logicon's annual report on Form 10-K filed May 30, 1997 for the fiscal year
ended March 31, 1997.
 
CERTAIN STOCKHOLDERS OF NORTHROP
 
  The information required herein is hereby incorporated by reference to
Northrop's annual report on Form 10-K filed February 25, 1997 for the fiscal
year ended December 31, 1996.
 
      MANAGEMENT OF THE SURVIVING CORPORATION AND EXECUTIVE COMPENSATION
 
  The information required herein is hereby incorporated by reference to
Logicon's annual report on Form 10-K filed May 30, 1997 for the fiscal year
ended March 31, 1997.
 
                                 OTHER MATTERS
 
  It is not expected that any matters other than those described in this Proxy
Statement/Prospectus will be brought before the Special Meeting. If any other
matters are presented, however, it is the intention of the persons named in
the Logicon proxy to vote the proxy in accordance with the discretion of the
persons named in such proxy.
 
                                 LEGAL MATTERS
 
  Certain legal matters with respect to the validity of the securities offered
hereby and the Merger will be passed upon for Northrop by Gibson, Dunn &
Crutcher LLP, 333 South Grand Avenue, Los Angeles, California, 90071-3197.
Certain legal matters in connection with the Merger will be passed upon for
Logicon by O'Melveny & Myers LLP, 610 Newport Center Drive, Newport Beach,
California, 92660.
 
                                    EXPERTS
 
  The consolidated financial statements incorporated in this Proxy
Statement/Prospectus by reference from the Annual Report on Form 10-K of
Northrop for the year ended December 31, 1996, have been audited by Deloitte &
Touche LLP, independent auditors, as stated in their report, which is
incorporated herein by reference, and have been so incorporated in reliance
upon the report of such firm given upon their authority as experts in
accounting and auditing.
 
  The consolidated financial statements incorporated in this Proxy
Statement/Prospectus by reference to the Annual Report on Form 10-K of Logicon
for the year ended March 31, 1997, have been so incorporated in reliance on
the report of Price Waterhouse LLP, independent accountants, given on the
authority of said firm as experts in auditing and accounting.
 
               RELATIONSHIP WITH INDEPENDENT PUBLIC ACCOUNTANTS
 
  It has been the practice of Northrop to engage Deloitte & Touche LLP for
annual audit services upon approval by either the Audit Committee or the Board
of Directors. Deloitte & Touche LLP has acted as Northrop's independent public
accountant for more than 20 years and will act in that capacity during the
current fiscal year.
 
                                      52
<PAGE>
 
                                 LOGICON, INC.
                                      AND
                          NORTHROP GRUMMAN CORPORATION
 
                   ANNEXES TO THE PROXY STATEMENT/PROSPECTUS
 
Annex A--Merger Agreement
 
Annex B--Opinion of Goldman, Sachs & Co.
 
                                       53
<PAGE>
 
                                                                         ANNEX A
 
- --------------------------------------------------------------------------------
 
                          AGREEMENT AND PLAN OF MERGER
 
                            DATED AS OF MAY 4, 1997
 
                                     AMONG
 
                         NORTHROP GRUMMAN CORPORATION,
 
                                 LOGICON, INC.
 
                                      AND
 
                              NG ACQUISITION, INC.
 
- --------------------------------------------------------------------------------
 
                                      A-1
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
 <C>              <S>                                                       <C>
 TABLE OF CONTENTS.........................................................   2

 ARTICLE 1 THE MERGER......................................................   7
    SECTION 1.1.  The Merger..............................................    7
    SECTION 1.2.  Effective Time..........................................    7
    SECTION 1.3.  Closing of the Merger...................................    7
    SECTION 1.4.  Effects of the Merger...................................    7
    SECTION 1.5.  Certificate of Incorporation and Bylaws.................    8
    SECTION 1.6.  Directors...............................................    8
    SECTION 1.7.  Officers................................................    8
    SECTION 1.8.  Conversion of Shares....................................    8
    SECTION 1.9.  No Appraisal Rights.....................................    8
    SECTION 1.10. Exchange of Certificates................................    9
    SECTION 1.11. Stock Options...........................................   10

 ARTICLE 2 REPRESENTATIONS AND WARRANTIES OF THE COMPANY...................  11
    SECTION 2.1.  Organization and Qualification; Subsidiaries............   11
    SECTION 2.2.  Capitalization of the Company and its Subsidiaries......   11
    SECTION 2.3.  Authority Relative to this Agreement; Recommendation....   12
    SECTION 2.4.  SEC Reports; Financial Statements.......................   12
    SECTION 2.5.  Information Supplied....................................   13
    SECTION 2.6.  Consents and Approvals; No Violations...................   13
    SECTION 2.7.  No Default .............................................   13
    SECTION 2.8.  No Undisclosed Liabilities; Absence of Changes..........   14
    SECTION 2.9.  Litigation..............................................   14
    SECTION 2.10. Compliance with Applicable Law..........................   14
    SECTION 2.11. Employee Benefit Plans; Labor Matters...................   14
    SECTION 2.12. Environmental Laws and Regulations......................   15
    SECTION 2.13. Taxes...................................................   16
    SECTION 2.14. Intellectual Property; Software.........................   17
    SECTION 2.15. Government Contracts....................................   17
    SECTION 2.16. Certain Business Practices..............................   18
    SECTION 2.17. Vote Required...........................................   18
    SECTION 2.18. Tax Treatment; Pooling..................................   18
    SECTION 2.19. Affiliates..............................................   18
    SECTION 2.20. Opinion of Financial Adviser............................   18
    SECTION 2.21. Brokers.................................................   18

 ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF PARENT AND ACQUISITION........  19
    SECTION 3.1.  Organization............................................   19
    SECTION 3.2.  Capitalization of Parent and its Subsidiaries...........   19
    SECTION 3.3.  Authority Relative to this Agreement....................   19
    SECTION 3.4.  SEC Reports; Financial Statements.......................   20
    SECTION 3.5.  Information Supplied....................................   20
    SECTION 3.6.  Consents and Approvals; No Violations...................   20
    SECTION 3.7.  No Default .............................................   21
    SECTION 3.8.  No Undisclosed Liabilities; Absence of Changes..........   21
    SECTION 3.9.  Litigation..............................................   21
    SECTION 3.10. Compliance with Applicable Law..........................   21
    SECTION 3.11. Employee Benefit Plans; Labor Matters...................   21
    SECTION 3.12. Environmental Laws and Regulations......................   22
</TABLE>
 
                                      A-2
<PAGE>
 
<TABLE>
<CAPTION>
<S>               <C>                                                      <C>
    SECTION 3.13. Tax Matters.............................................   22
    SECTION 3.14. Tax Treatment; Pooling..................................   22
    SECTION 3.15. Opinion of Financial Adviser............................   22
    SECTION 3.16. Brokers.................................................   22
    SECTION 3.17. No Prior Activities.....................................   22

 ARTICLE 4 COVENANTS.......................................................  23
    SECTION 4.1.  Conduct of Business of the Company......................   23
    SECTION 4.2.  Conduct of Business of Parent...........................   24
    SECTION 4.3.  Preparation of S-4 and the Proxy Statement..............   25
    SECTION 4.4.  Other Potential Acquirers...............................   25
    SECTION 4.5.  Comfort Letters.........................................   26
    SECTION 4.6.  Meeting of Stockholders.................................   26
    SECTION 4.7.  Stock Exchange Listing..................................   26
    SECTION 4.8.  Access to Information...................................   27
    SECTION 4.9.  Additional Agreements; Reasonable Efforts...............   27
    SECTION 4.10. Employee Benefits.......................................   27
    SECTION 4.11. Public Announcements....................................   28
    SECTION 4.12. Indemnification.........................................   28
    SECTION 4.13. Notification of Certain Matters.........................   28
    SECTION 4.14. Affiliates; Pooling; Tax-Free Reorganization............   28
    SECTION 4.15. Additions to and Modification of Company Disclosure
                  Schedule................................................   29

 ARTICLE 5 CONDITIONS TO CONSUMMATION OF THE MERGER........................  29
    SECTION 5.1.  Conditions to Each Party's Obligations to Effect the
                  Merger..................................................   29
    SECTION 5.2.  Conditions to the Obligations of the Company............   29
    SECTION 5.3.  Conditions to the Obligations of Parent and
                  Acquisition.............................................   30

 ARTICLE 6 TERMINATION; AMENDMENT; WAIVER..................................  31
    SECTION 6.1.  Termination.............................................   31
    SECTION 6.2.  Effect of Termination...................................   32
    SECTION 6.3.  Fees and Expenses.......................................   32
    SECTION 6.4.  Amendment...............................................   33
    SECTION 6.5.  Extension; Waiver.......................................   33

 ARTICLE 7 MISCELLANEOUS...................................................  33
    SECTION 7.1.  Nonsurvival of Representations and Warranties...........   33
    SECTION 7.2.  Entire Agreement; Assignment............................   33
    SECTION 7.3.  Validity................................................   34
    SECTION 7.4.  Notices.................................................   34
    SECTION 7.5.  Governing Law...........................................   34
    SECTION 7.6.  Descriptive Headings....................................   34
    SECTION 7.7.  Parties in Interest.....................................   34
    SECTION 7.8.  Certain Definitions.....................................   34
    SECTION 7.9.  Personal Liability......................................   35
    SECTION 7.10. Specific Performance....................................   35
    SECTION 7.11. Counterparts............................................   35
</TABLE>
 
                                      A-3
<PAGE>
 
                               TABLE OF EXHIBITS
 
<TABLE>
<S>                      <C>                                                                       <C>
Exhibit A-1............. Form of Letter Agreement with Company Affiliates
Exhibit A-2............. Form of Letter Agreement with Parent Affiliates
Exhibit B-1............. Form of Representations Relating to Tax Matters of the Company
Exhibit B-2............. Form of Representations Relating to Tax Matters of Parent and Acquisition
Exhibit C............... Matters to be Covered by Opinion of Tax Counsel to the Company
Exhibit D............... Matters to be Covered by Opinion of Legal Counsel to the Company
Exhibit E............... Matters to be Covered by Opinion of Tax Counsel to Parent
Exhibit F............... Matters to be Covered by Legal Counsel to Parent and Acquisition
</TABLE>
 
                               TABLE OF CONTENTS
                                       TO
                          COMPANY DISCLOSURE SCHEDULE
 
<TABLE>
<S>                               <C>
Section 2.1...................... Subsidiaries
Section 2.6...................... Consents and Approval
Section 2.7...................... Defaults
Section 2.8...................... Undisclosed Liabilities
Section 2.9...................... Litigation
Section 2.11(a).................. Employee Plans
Section 2.11(b).................. Employment and Related Agreements
Section 2.11(c).................. Employee Benefits Affected by this Transaction
Section 2.11(e).................. Employee Matters
Section 2.13(b).................. Delinquent or Inaccurate Tax Returns
Section 2.13(d).................. Tax Claims
Section 2.13(e).................. Excess Parachute Payments
Section 2.14(c).................. Intellectual Property Infringement
Section 2.15(b).................. Matters Related to Government Contracts
Section 2.19..................... Affiliates, Directors and Executive Officers
Section 4.1...................... Exceptions to Ordinary Course
</TABLE>
 
                                      A-4
<PAGE>
 
                             TABLE OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                        CROSS REFERENCE
TERM                                                      IN AGREEMENT      PAGE
- ----                                                  --------------------  ----
<S>                                                   <C>                   <C>
Acquisition..........................................  Preamble               1
affiliate............................................  Section 7.8(a)        39
Agreement............................................  Preamble               1
Bid..................................................  Section 2.15(d)(i)    16
business day.........................................  Section 7.8(b)        39
capital stock........................................  Section 7.8(c)        39
Certificates.........................................  Section 1.10(b)        4
Closing Date.........................................  Section 1.3            2
Closing..............................................  Section 1.3            2
Code.................................................  Preamble               1
Company Affiliates...................................  Section 2.19          16
Company Board........................................  Section 2.3(a)         8
Company Disclosure Schedule..........................  Section 2.1(a)         7
Company Financial Adviser............................  Section 2.20          17
Company Intellectual Property Rights.................  Section 2.14(a)       14
Company Permits......................................  Section 2.10          11
Company Plans........................................  Section 1.11(a)        5
Company..............................................  Preamble               1
Company Rights Agreement.............................  Section 2.2(a)         7
Company Rights.......................................  Section 2.2(a)         7
Company Securities...................................  Section 2.2(a)         8
Company Stock Option or Options......................  Section 1.11(a)        5
DGCL.................................................  Section 1.1            1
Effective Time.......................................  Section 1.2            2
Employee Plans.......................................  Section 2.11(a)       12
Environmental Claim..................................  Section 2.12(a)       13
Environmental Laws...................................  Section 2.12(a)       13
ERISA Affiliate......................................  Section 2.11(a)       12
ERISA................................................  Section 2.11(a)       11
Exchange Act.........................................  Section 2.2(c)         8
Exchange Agent.......................................  Section 1.10(a)        3
Exchange Fund........................................  Section 1.10(a)        3
Exchange Ratio.......................................  Section 1.8(b)         3
Government Contract..................................  Section 2.15(d)(ii)   16
Governmental Entity..................................  Section 2.6           10
HSR Act..............................................  Section 2.6            9
Indemnified Liabilities..............................  Section 4.12          30
Indemnified Persons..................................  Section 4.12          30
IRS..................................................  Section 2.11(a)       12
knowledge or known...................................  Section 7.8(d)        39
Lien.................................................  Section 2.2(b)         8
Material Adverse Effect on Parent....................  Section 3.1(b)        17
Material Adverse Effect on the Company...............  Section 2.1(b)         7
Merger Certificate...................................  Section 1.2            1
Merger Consideration.................................  Section 1.8(a)         3
Merger...............................................  Section 1.1            1
Notice of Superior Proposal..........................  Section 4.4(b)        26
NYSE.................................................  Section 1.8(b)         3
</TABLE>
 
                                      A-5
<PAGE>
 
<TABLE>
<CAPTION>
                                                        CROSS REFERENCE
TERM                                                     IN AGREEMENT       PAGE
- ----                                                 ---------------------  ----
<S>                                                  <C>                    <C>
Parent Benefit Plans................................  Section 3.11           21
Parent Common Stock.................................  Section 1.8(a)          3
Parent Financial Adviser............................  Section 3.15           22
Parent Permits......................................  Section 3.10           20
Parent..............................................  Preamble                1
Parent Rights.......................................  Section 3.2(a)         17
Parent Securities...................................  Section 3.2(a)         18
person..............................................  Section 7.8(e)         39
Proxy Statement.....................................  Section 2.5             9
RSPP................................................  Section 2.2(a)          7
S-4.................................................  Section 2.5             9
SEC.................................................  Section 2.4(a)          9
Securities Act......................................  Section 2.4(a)          9
Shares..............................................  Section 1.8(a)          2
subsidiary or subsidiaries..........................  Section 7.8(f)         39
Superior Proposal...................................  Section 4.4(c)         27
Surviving Corporation...............................  Section 1.1             1
Tax or Taxes........................................  Section 2.13(a)(i)     13
Tax Return..........................................  Section 2.13(a)(ii)    14
Third Party Acquisition.............................  Section 4.4(c)         27
Third Party.........................................  Section 4.4(c)         27
U.S. Government.....................................  Section 2.15(d)(iii)   16
</TABLE>
 
                                      A-6
<PAGE>
 
                         AGREEMENT AND PLAN OF MERGER
 
  THIS AGREEMENT AND PLAN OF MERGER (this "Agreement") dated as of May 4, 1997
is among LOGICON, INC., a Delaware corporation, ("Company"), NORTHROP GRUMMAN
CORPORATION, a Delaware corporation, ("Parent"), and NG ACQUISITION, INC., a
Delaware corporation and a wholly owned subsidiary of Parent ("Acquisition").
 
  WHEREAS the Boards of Directors of the Company, Parent and Acquisition have
each (i) determined that the Merger (as defined below) is fair and in the best
interests of their respective stockholders and (ii) approved the Merger in
accordance with this Agreement;
 
  WHEREAS for Federal income tax purposes it is intended that the Merger
qualify as a reorganization under the provisions of Section 368(a) of the
Internal Revenue Code of 1986 as amended (the "Code"); and
 
  WHEREAS the Merger is intended to be treated as a "pooling of interests" for
financial accounting purposes.
 
  NOW THEREFORE in consideration of the premises and the representations,
warranties, covenants and agreements herein contained and intending to be
legally bound hereby the Company, Parent and Acquisition hereby agree as
follows:
 
                                   ARTICLE 1
 
                                  THE MERGER
 
  SECTION 1.1. The Merger. At the Effective Time (as defined below) and upon
the terms and subject to the conditions of this Agreement and in accordance
with the Delaware General Corporation Law (the "DGCL"), Acquisition shall be
merged with and into the Company (the "Merger"). Following the Merger, the
Company shall continue as the surviving corporation (the "Surviving
Corporation") and the separate corporate existence of Acquisition shall cease.
The Merger is intended to qualify as a tax-free reorganization under Section
368 of the Code.
 
  SECTION 1.2. Effective Time. Subject to the terms and conditions set forth
in this Agreement, a Certificate of Merger (the "Merger Certificate") shall be
duly executed and acknowledged by Acquisition and the Company and thereafter
delivered to the Secretary of State of the State of Delaware for filing
pursuant to the DGCL on the Closing Date (as defined in Section 1.3). The
Merger shall become effective at such time as a properly executed and
certified copy of the Merger Certificate is duly filed with the Secretary of
State of the State of Delaware in accordance with the DGCL or such later time
as Parent and the Company may agree upon and set forth in the Merger
Certificate (the time the Merger becomes effective being referred to herein as
the "Effective Time").
 
  SECTION 1.3. Closing of the Merger. The closing of the Merger (the
"Closing") will take place at a time and on a date (the "Closing Date") to be
specified by the parties, which shall be no later than the second business day
after satisfaction of the latest to occur of the conditions set forth in
Section 5.1 at the offices of Gibson, Dunn & Crutcher LLP, 333 South Grand
Avenue, Los Angeles, California 90071, unless another time, date or place is
agreed to in writing by the parties hereto.
 
  SECTION 1.4. Effects of the Merger. The Merger shall have the effects set
forth in the DGCL. Without limiting the generality of the foregoing and
subject thereto, at the Effective Time all the properties, rights, privileges,
powers and franchises of the Company and Acquisition shall vest in the
Surviving Corporation and all debts, liabilities and duties of the Company and
Acquisition shall become the debts, liabilities and duties of the Surviving
Corporation.
 
                                      A-7
<PAGE>
 
  SECTION 1.5. Certificate of Incorporation and Bylaws. The Certificate of
Incorporation of the Company in effect at the Effective Time shall be the
Certificate of Incorporation of the Surviving Corporation until amended in
accordance with applicable law; provided, however, that Article Fourth of the
Certificate of Incorporation of the Company shall be amended to read in its
entirety as follows: "The aggregate number of shares which the Corporation
shall have the authority to issue is one thousand (1,000), $.01 par value per
share, to be designated "Common Stock". The bylaws of the Company in effect at
the Effective Time shall be the bylaws of the Surviving Corporation until
amended in accordance with applicable law.
 
  SECTION 1.6. Directors. The directors of Acquisition at the Effective Time
shall be the initial directors of the Surviving Corporation, each to hold
office in accordance with the Certificate of Incorporation and bylaws of the
Surviving Corporation until such director's successor is duly elected or
appointed and qualified.
 
  SECTION 1.7. Officers. The officers of the Company at the Effective Time
shall be the initial officers of the Surviving Corporation, each to hold
office in accordance with the Certificate of Incorporation and bylaws of the
Surviving Corporation until such officer's successor is duly elected or
appointed and qualified.
 
  SECTION 1.8. Conversion of Shares.
 
  (a) At the Effective Time, each share of common stock, par value $.10 per
share, of the Company (individually a "Share" and collectively the "Shares")
issued and outstanding immediately prior to the Effective Time (other than (i)
Shares held in the Company's treasury or by any of the Company's subsidiaries
and (ii) Shares held by Parent, Acquisition or any other subsidiary of Parent)
shall, by virtue of the Merger and without any action on the part of
Acquisition, the Company or the holder thereof, be converted into and shall
become a number of fully paid and nonassessable shares of common stock, $1.00
par value per share, of Parent ("Parent Common Stock") equal to the Exchange
Ratio (as defined below) (the "Merger Consideration"). Unless the context
otherwise requires (i) each reference in this Agreement to the Shares shall
include the associated Company Rights (as such term is defined in Section
2.2(a) hereof) and (ii) each reference in this Agreement to shares of Parent
Common Stock shall include the associated Parent Rights (as such term is
defined in Section 3.2(a) hereof). Notwithstanding the foregoing if, between
the date of this Agreement and the Effective Time, the outstanding shares of
Parent Common Stock or the Shares shall have been changed into a different
number of shares or a different class by reason of any stock dividend,
subdivision, reclassification, recapitalization, split, combination or
exchange of shares then the exchange ratio contemplated by the Merger shall be
correspondingly adjusted to reflect such stock dividend, subdivision,
reclassification, recapitalization, split, combination or exchange of shares.
 
  (b) The "Exchange Ratio" shall be a fraction, the numerator of which is 52
and the denominator of which is the average of the closing prices for Parent
Common Stock as reported on the New York Stock Exchange (the "NYSE") Composite
Transactions reporting system for the 30 business days prior to the effective
date of the S-4 (as defined in Section 2.5); provided, however, that the
Exchange Ratio shall not be greater than 0.6919 nor less than 0.5661.
 
  (c) At the Effective Time, each outstanding share of the common stock, par
value $.01 per share, of Acquisition shall be converted into one share of
common stock, par value $.10 per share, of the Surviving Corporation.
 
  (d) At the Effective Time, each Share held in the treasury of the Company
and each Share held by Parent, Acquisition or any subsidiary of Parent,
Acquisition or the Company immediately prior to the Effective Time shall, by
virtue of the Merger and without any action on the part of Acquisition, the
Company or the holder thereof, be canceled, retired and cease to exist and no
shares of Parent Common Stock shall be delivered with respect thereto.
 
  SECTION 1.9. No Appraisal Rights. The holders of Shares and the holders of
shares of Parent Common Stock shall not be entitled to appraisal rights.
 
                                      A-8
<PAGE>
 
  SECTION 1.10. Exchange of Certificates.
 
  (a) From time to time following the Effective Time, as required by
subsections (b) and (c) below, Parent shall deliver to Chase Mellon
Shareholder Services, L.L.C., or such other agent or agents as may be
appointed by Parent and Acquisition (the "Exchange Agent") for the benefit of
the holders of Shares for exchange in accordance with this Article I through
the Exchange Agent: (i) certificates representing the appropriate number of
shares of Parent Common Stock and (ii) cash to be paid in lieu of fractional
shares of Parent Common Stock (such shares of Parent Common Stock and such
cash are hereinafter referred to as the "Exchange Fund") issuable pursuant to
Section 1.8 in exchange for outstanding Shares.
 
  (b) As soon as reasonably practicable after the Effective Time, the Exchange
Agent shall mail to each holder of record of a certificate or certificates
which immediately prior to the Effective Time represented outstanding Shares
(the "Certificates") whose shares were converted into the right to receive
shares of Parent Common Stock pursuant to Section 1.8: (i) a letter of
transmittal (which shall specify that delivery shall be effected and risk of
loss and title to the Certificates shall pass only upon delivery of the
Certificates to the Exchange Agent and shall be in such form and have such
other provisions as Parent and the Company may reasonably specify) and (ii)
instructions for use in effecting the surrender of the Certificates in
exchange for certificates representing shares of Parent Common Stock. Upon
surrender of a Certificate for cancellation to the Exchange Agent together
with such letter of transmittal duly executed the holder of such Certificate
shall be entitled to receive in exchange therefor a certificate representing
that number of whole shares of Parent Common Stock and if applicable a check
representing the cash consideration to which such holder may be entitled on
account of a fractional share of Parent Common Stock which such holder has the
right to receive pursuant to the provisions of this Article I and the
Certificate so surrendered shall forthwith be canceled. In the event of a
transfer of ownership of Shares which is not registered in the transfer
records of the Company, a certificate representing the proper number of shares
of Parent Common Stock may be issued to a transferee if the Certificate
representing such Shares is presented to the Exchange Agent accompanied by all
documents required to evidence and effect such transfer and by evidence that
any applicable stock transfer taxes have been paid. Until surrendered as
contemplated by this Section 1.10, each Certificate shall be deemed at any
time after the Effective Time to represent only the right to receive upon such
surrender the certificate representing shares of Parent Common Stock and cash
in lieu of any fractional shares of Parent Common Stock as contemplated by
this Section 1.10.
 
  (c) No dividends or other distributions declared or made after the Effective
Time with respect to Parent Common Stock with a record date after the
Effective Time shall be paid to the holder of any unsurrendered Certificate
with respect to the shares of Parent Common Stock represented thereby and no
cash payment in lieu of fractional shares shall be paid to any such holder
pursuant to Section 1.10(f) until the holder of record of such Certificate
shall surrender such Certificate. Subject to the effect of applicable laws,
following surrender of any such Certificate there shall be paid to the record
holder of the certificates representing whole shares of Parent Common Stock
issued in exchange therefor without interest (i) at the time of such surrender
the amount of any cash payable in lieu of a fractional share of Parent Common
Stock to which such holder is entitled pursuant to Section 1.10(f) and the
amount of dividends or other distributions with a record date after the
Effective Time theretofore paid with respect to such whole shares of Parent
Common Stock and (ii) at the appropriate payment date the amount of dividends
or other distributions with a record date after the Effective Time but prior
to surrender and a payment date subsequent to surrender payable with respect
to such whole shares of Parent Common Stock.
 
  (d) In the event that any Certificate for Shares shall have been lost,
stolen or destroyed, the Exchange Agent shall issue in exchange therefor upon
the making of an affidavit of that fact by the holder thereof such shares of
Parent Common Stock and cash in lieu of fractional shares if any as may be
required pursuant to this Agreement provided, however, that Parent or its
Exchange Agent may, in its discretion, require the delivery of a suitable bond
or indemnity.
 
  (e) All shares of Parent Common Stock issued upon the surrender for exchange
of Shares in accordance with the terms hereof (including any cash paid
pursuant to Section 1.10(c) or 1.10(f)) shall be deemed to have
 
                                      A-9
<PAGE>
 
been issued in full satisfaction of all rights pertaining to such Shares;
subject, however, to the Surviving Corporation's obligation to pay any
dividends or make any other distributions with a record date prior to the
Effective Time which may have been declared or made by the Company on such
Shares in accordance with the terms of this Agreement, or prior to the date
hereof and which remain unpaid at the Effective Time, and there shall be no
further registration of transfers on the stock transfer books of the Surviving
Corporation of the Shares which were outstanding immediately prior to the
Effective Time. If after the Effective Time Certificates are presented to the
Surviving Corporation for any reason they shall be canceled and exchanged as
provided in this Article I.
 
  (f) No fractions of a share of Parent Common Stock shall be issued in the
Merger but in lieu thereof each holder of Shares otherwise entitled to a
fraction of a share of Parent Common Stock shall upon surrender of his or her
Certificate or Certificates be entitled to receive an amount of cash (without
interest) determined by multiplying the closing price for Parent Common Stock
as reported on the NYSE Composite Transactions reporting system on the
business day five days prior to the Effective Time by the fractional share
interest to which such holder would otherwise be entitled. The parties
acknowledge that payment of the cash consideration in lieu of issuing
fractional shares was not separately bargained for consideration but merely
represents a mechanical rounding off for purposes of simplifying the corporate
and accounting complexities which would otherwise be caused by the issuance of
fractional shares.
 
  (g) Neither Parent nor the Company shall be liable to any holder of Shares
or Parent Common Stock as the case may be for such shares (or dividends or
distributions with respect thereto) or cash from the Exchange Fund delivered
to a public official pursuant to any applicable abandoned property, escheat or
similar law.
 
  SECTION 1.11. Stock Options.
 
  (a) At the Effective Time, each outstanding option to purchase Shares (a
"Company Stock Option" or collectively "Company Stock Options") (i) issued
pursuant to the 1979 Restricted Stock Purchase and Stock Option Plan, 1982
Incentive Stock Plan, 1991 Stock Option Plan for Non-Employee Directors and
the 1992 Employee Incentive Stock Option Plan or (ii) issued by Geodynamics
Corporation and assumed by the Company pursuant to the agreement dated as of
on or about March 28, 1996 between the Company and Geodynamics Corporation,
whether vested or unvested, shall be converted as of the Effective Time into
options to purchase shares of Parent Common Stock in accordance with the terms
of this Section 1.11. All plans or agreements described above pursuant to
which any Company Stock Option has been issued or may be issued are referred
to collectively as the "Company Plans." Each Company Stock Option shall be
deemed to constitute an option to acquire, on the same terms and conditions as
were applicable under such Company Stock Option, a number of shares of Parent
Common Stock equal to the number of shares of Parent Common Stock that the
holder of such Company Stock Option would have been entitled to receive
pursuant to the Merger had such holder exercised such option in full
immediately prior to the Effective Time at a price per share equal to (x) the
aggregate exercise price for the Shares otherwise purchasable pursuant to such
Company Stock Option divided by (y) the product of (i) the number of Shares
otherwise purchasable pursuant to such Company Stock Option, multiplied by
(ii) the Exchange Ratio; provided, however, that in the case of any option to
which Section 421 of the Code applies by reason of its qualification under
Section 422 of the Code ("incentive stock options" or "ISOs") the option
price, the number of shares purchasable pursuant to such option and the terms
and conditions of exercise of such option shall be determined in order to
comply with Section 424(a) of the Code.
 
  (b) As soon as practicable after the Effective Time, Parent shall deliver to
the holders of Company Stock Options appropriate notices setting forth such
holders' rights pursuant to the Company Plan and that the agreements
evidencing the grants of such Options shall continue in effect on the same
terms and conditions (subject to the adjustments required by this Section 1.11
after giving effect to the Merger). Parent shall comply with the terms of the
Company Plans and ensure, to the extent required by and subject to the
provisions of such Plans, that Company Stock Options which qualified as
incentive stock options prior to the Effective Time continue to qualify as
incentive stock options of Parent after the Effective Time.
 
                                     A-10
<PAGE>
 
  (c) Parent shall take all corporate action necessary to reserve for issuance
a sufficient number of shares of Parent Common Stock for delivery upon
exercise of Company Stock Options assumed in accordance with this Section
1.11. As soon as practicable after the Effective Time, Parent shall file a
registration statement on Form S-8 (or any successor or other appropriate
forms) with respect to the shares of Parent Common Stock subject to any
Company Stock Options held by persons who are directors, officers or employees
of the Company or its subsidiaries and shall use its best efforts to maintain
the effectiveness of such registration statement or registration statements
(and maintain the current status of the prospectus or prospectuses contained
therein) for so long as such options remain outstanding.
 
  (d) At or before the Effective Time, the Company shall cause to be effected
any necessary amendments to the Company Plans to give effect to the foregoing
provisions of this Section 1.11.
 
                                   ARTICLE 2
 
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
 
  The Company hereby represents and warrants to each of Parent and Acquisition
as follows:
 
  SECTION 2.1. Organization and Qualification; Subsidiaries.
 
  (a) Section 2.1 of the Disclosure Schedule delivered by the Company to
Parent in accordance with Section 4.15 (the "Company Disclosure Schedule")
identifies each subsidiary of the Company as of the date hereof and its
respective jurisdiction of incorporation or organization, as the case may be.
Each of the Company and its subsidiaries is duly organized, validly existing
and in good standing under the laws of the jurisdiction of its incorporation
or organization and has all requisite power and authority to own, lease and
operate its properties and to carry on its businesses as now being conducted.
The Company has heretofore delivered to Acquisition or Parent accurate and
complete copies of the Certificate of Incorporation and bylaws (or similar
governing documents), as currently in effect, of the Company and its
subsidiaries.
 
  (b) Each of the Company and its subsidiaries is duly qualified or licensed
and in good standing to do business in each jurisdiction in which the property
owned, leased or operated by it or the nature of the business conducted by it
makes such qualification or licensing necessary, except in such jurisdictions
where the failure to be so duly qualified or licensed and in good standing
would not have a Material Adverse Effect (as defined below) on the Company.
When used in connection with the Company or its subsidiaries, the term
"Material Adverse Effect on the Company" means any change or effect (i) that
is or is reasonably likely to be materially adverse to the business, results
of operations, condition (financial or otherwise) or prospects of the Company
and its subsidiaries, taken as whole, or (ii) that would impair the ability of
the Company to consummate the transactions contemplated hereby.
 
  SECTION 2.2. Capitalization of the Company and its Subsidiaries.
 
  (a) The authorized capital stock of the Company consists of 40,000,000
Shares, of which, as of March 31, 1997, 13,989,567 Shares were issued and
outstanding (each together with a Share purchase right (the "Company Rights")
issued pursuant to the Stockholder Rights Plan dated as of April 9, 1990
between the Company and ChaseMellon Shareholder Services, L.L.C., as successor
to First Interstate Bank, N.A. (the "Company Rights Agreement")) and 2,000,000
shares of preferred stock, par value $.10 per share, no shares of which are
outstanding. All of the outstanding Shares have been validly issued and are
fully paid, nonassessable and free of preemptive rights. As of March 31, 1997,
approximately 700,000 Shares were reserved for issuance and issuable upon or
otherwise deliverable in connection with the exercise of outstanding Company
Stock Options issued pursuant to the Company Plans including 66,306 Shares
were reserved for issuance pursuant to Company Stock Options referred to in
Section 1.11(a)(ii) hereof and approximately 2,775,390 Shares have been issued
pursuant to the Restricted Stock Purchase Plan (the "RSPP"). Between March 31,
1997 and the date hereof, no shares of the Company's capital stock have been
issued other than pursuant to Company Stock Options already in existence on
such date, and between March 31, 1997 and the date hereof no stock options
have been granted.
 
                                     A-11
<PAGE>
 
Except as set forth above and except for the Company Rights, as of the date
hereof, there are outstanding (i) no shares of capital stock or other voting
securities of the Company, (ii) no securities of the Company or its
subsidiaries convertible into or exchangeable for shares of capital stock or
voting securities of the Company, (iii) no options or other rights to acquire
from the Company or its subsidiaries, and, except as described in the Company
SEC Reports (as defined below), no obligations of the Company or its
subsidiaries to issue any capital stock, voting securities or securities
convertible into or exchangeable for capital stock or voting securities of the
Company and (iv) no equity equivalent interests in the ownership or earnings
of the Company or its subsidiaries or other similar rights (collectively
"Company Securities"). As of the date hereof, there are no outstanding
obligations of the Company or its subsidiaries to repurchase, redeem or
otherwise acquire any Company Securities. There are no stockholder agreements,
voting trusts or other agreements or understandings to which the Company is a
party or by which it is bound relating to the voting or registration of any
shares of capital stock of the Company.
 
  (b) All of the outstanding capital stock of the Company's subsidiaries
(other than director's qualifying shares in the case of foreign subsidiaries)
is owned by the Company, directly or indirectly, free and clear of any Lien
(as defined below) or any other limitation or restriction (including any
restriction on the right to vote or sell the same except as may be provided as
a matter of law). There are no securities of the Company or its subsidiaries
convertible into or exchangeable for, no options or other rights to acquire
from the Company or its subsidiaries and no other contract, understanding,
arrangement or obligation (whether or not contingent) providing for, the
issuance or sale, directly or indirectly, of any capital stock or other
ownership interests in or any other securities of any subsidiary of the
Company. There are no outstanding contractual obligations of the Company or
its subsidiaries to repurchase, redeem or otherwise acquire any outstanding
shares of capital stock or other ownership interests in any subsidiary of the
Company. For purposes of this Agreement, "Lien" means, with respect to any
asset (including without limitation any security), any mortgage, lien, pledge,
charge, security interest or encumbrance of any kind in respect of such asset.
 
  (c) The Shares constitute the only class of equity securities of the Company
or its subsidiaries registered or required to be registered under the
Securities Exchange Act of 1934, as amended (the "Exchange Act").
 
  SECTION 2.3. Authority Relative to this Agreement; Recommendation.
 
  (a) The Company has all necessary corporate power and authority to execute
and deliver this Agreement and to consummate the transactions contemplated
hereby. The execution and delivery of this Agreement and the consummation of
the transactions contemplated hereby have been duly and validly authorized by
the Board of Directors of the Company (the "Company Board") and no other
corporate proceedings on the part of the Company are necessary to authorize
this Agreement or to consummate the transactions contemplated hereby except
the approval and adoption of this Agreement by the holders of a majority of
the outstanding Shares. This Agreement has been duly and validly executed and
delivered by the Company and constitutes a valid, legal and binding agreement
of the Company enforceable against the Company in accordance with its terms.
 
  (b) The Company Board has unanimously resolved to recommend that the
stockholders of the Company approve and adopt this Agreement.
 
  SECTION 2.4. SEC Reports; Financial Statements.
 
  (a) The Company has filed all required forms, reports and documents
("Company SEC Reports") with the Securities and Exchange Commission (the
"SEC") since March 31, 1993, each of which has complied in all material
respects with all applicable requirements of the Securities Act of 1933, as
amended (the "Securities Act") and the Exchange Act, each as in effect on the
dates such forms, reports and documents were filed. None of such Company SEC
Reports, including, without limitation, any financial statements or schedules
included or incorporated by reference therein, contained when filed any untrue
statement of a material fact or omitted to state a material fact required to
be stated or incorporated by reference therein or necessary in order to make
the statements therein in light of the circumstances under which they were
made not misleading. The audited consolidated financial statements of the
Company included in the Company SEC Reports fairly present, in
 
                                     A-12
<PAGE>
 
conformity with generally accepted accounting principles applied on a
consistent basis (except as may be indicated in the notes thereto), the
consolidated financial position of the Company and its consolidated
subsidiaries as of the dates thereof and their consolidated results of
operations and changes in financial position for the periods then ended.
 
  (b) The Company has heretofore made available or promptly will make
available to Acquisition or Parent a complete and correct copy of any
amendments or modifications which are required to be filed with the SEC but
have not yet been filed with the SEC to agreements, documents or other
instruments which previously had been filed by the Company with the SEC
pursuant to the Exchange Act.
 
  SECTION 2.5. Information Supplied. None of the information supplied or to be
supplied by the Company for inclusion or incorporation by reference in (i) the
registration statement on Form S-4 to be filed with the SEC by Parent in
connection with the issuance of shares of Parent Common Stock in the Merger
(the "S-4") will, at the time the S-4 is filed with the SEC and at the time it
becomes effective under the Securities Act, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary to make the statements therein not misleading and (ii) the proxy
statement relating to the meeting of the Company's stockholders to be held in
connection with the Merger (the "Proxy Statement") will, at the date mailed to
stockholders of the Company and at the time of the meeting of stockholders of
the Company to be held in connection with the Merger, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein in light
of the circumstances under which they are made not misleading. The Proxy
Statement insofar as it relates to the meeting of the Company's stockholders
to vote on the Merger will comply as to form in all material respects with the
provisions of the Exchange Act and the rules and regulations thereunder.
 
  SECTION 2.6. Consents and Approvals; No Violations. Except for filings,
permits, authorizations, consents and approvals as may be required under and
other applicable requirements of the Securities Act, the Exchange Act, state
securities or blue sky laws, the Hart-Scott-Rodino Antitrust Improvements Act
of 1976, as amended (the "HSR Act") and the filing and recordation of the
Merger Certificate as required by the DGCL, no filing with or notice to and no
permit, authorization, consent or approval of any United States or foreign
court or tribunal, or administrative, governmental or regulatory body, agency
or authority (a "Governmental Entity") is necessary for the execution and
delivery by the Company of this Agreement or the consummation by the Company
of the transactions contemplated hereby, except where the failure to obtain
such permits, authorizations, consents or approvals or to make such filings or
give such notice would not have a Material Adverse Effect on the Company.
Neither the execution, delivery and performance of this Agreement by the
Company nor the consummation by the Company of the transactions contemplated
hereby will (i) conflict with or result in any breach of any provision of the
respective Certificate of Incorporation or bylaws (or similar governing
documents) of the Company or any of its subsidiaries, (ii) except as set forth
in Section 2.6 of the Company Disclosure Schedule, result in a violation or
breach of or constitute (with or without due notice or lapse of time or both)
a default (or give rise to any right of termination, amendment, cancellation
or acceleration or Lien) under any of the terms, conditions or provisions of
any note, bond, mortgage, indenture, lease, license, contract, agreement or
other instrument or obligation to which the Company or any of its subsidiaries
is a party or by which any of them or any of their respective properties or
assets may be bound or (iii) except as set forth in Section 2.6 of the Company
Disclosure Schedule, violate any order, writ, injunction, decree, law,
statute, rule or regulation applicable to the Company or any of its
subsidiaries or any of their respective properties or assets except, in the
case of (ii) or (iii), for violations, breaches or defaults which would not
have a Material Adverse Effect on the Company.
 
  SECTION 2.7. No Default. Except as set forth in Section 2.7 of the Company
Disclosure Schedule, none of the Company or its subsidiaries is in breach,
default or violation (and no event has occurred which with notice or the lapse
of time or both would constitute a breach, default or violation) of any term,
condition or provision of (i) its Certificate of Incorporation or bylaws (or
similar governing documents), (ii) any note, bond, mortgage, indenture, lease,
license, contract, agreement or other instrument or obligation to which the
Company or any of its subsidiaries is now a party or by which any of them or
any of their respective properties or assets may be
 
                                     A-13
<PAGE>
 
bound or (iii) any order, writ, injunction, decree, law, statute, rule or
regulation applicable to the Company or any of its subsidiaries or any of
their respective properties or assets except, in the case of (ii) or (iii),
for violations, breaches or defaults that would not have a Material Adverse
Effect on the Company.
 
  SECTION 2.8. No Undisclosed Liabilities; Absence of Changes. Except as and
to the extent publicly disclosed by the Company in the Company SEC Reports or
as set forth in Section 2.8 of the Company Disclosure Schedule, none of the
Company or its subsidiaries has any liabilities or obligations of any nature,
whether or not accrued, contingent or otherwise, that would be required by
generally accepted accounting principles to be reflected on a consolidated
balance sheet of the Company (including the notes thereto), other than
liabilities incurred in the ordinary course of business since December 31,
1996, none of which, individually or in the aggregate, would have a Material
Adverse Effect on the Company. Except as publicly disclosed by the Company in
the Company SEC Reports or as set forth in Section 2.8 of the Company
Disclosure Schedule, since December 31, 1996, there have been no events,
changes or effects with respect to the Company or its subsidiaries having or
which reasonably could be expected to have a Material Adverse Effect on the
Company.
 
  SECTION 2.9. Litigation. Except as publicly disclosed by the Company in the
Company SEC Reports or as set forth in Section 2.9 of the Company Disclosure
Schedule, there is no suit, claim, action, proceeding or investigation pending
or, to the knowledge of the Company, threatened against the Company or any of
its subsidiaries or any of their respective properties or assets before any
Governmental Entity which individually or in the aggregate could reasonably be
expected to have a Material Adverse Effect on the Company or could reasonably
be expected to prevent or delay the consummation of the transactions
contemplated by this Agreement. Except as publicly disclosed by the Company in
the Company SEC Reports, none of the Company or its subsidiaries is subject to
any outstanding order, writ, injunction or decree which insofar as can be
reasonably foreseen in the future could reasonably be expected to have a
Material Adverse Effect on the Company or could reasonably be expected to
prevent or delay the consummation of the transactions contemplated hereby.
 
  SECTION 2.10. Compliance with Applicable Law. Except as publicly disclosed
by the Company in the Company SEC Reports, the Company and its subsidiaries
hold all permits, licenses, variances, exemptions, orders and approvals of all
Governmental Entities necessary for the lawful conduct of their respective
businesses (the "Company Permits") except for failures to hold such permits,
licenses, variances, exemptions, orders and approvals which would not have a
Material Adverse Effect on the Company. Except as publicly disclosed by the
Company in the Company SEC Reports, the Company and its subsidiaries are in
compliance with the terms of the Company Permits except where the failure so
to comply would not have a Material Adverse Effect on the Company. Except as
publicly disclosed by the Company in the Company SEC Reports, the businesses
of the Company and its subsidiaries are not being conducted in violation of
any law, ordinance or regulation of the United States or any foreign country
or any political subdivision thereof or of any Governmental Entity, except (i)
that no representation or warranty is made in this Section 2.10 with respect
to Environmental Laws (as defined in Section 2.12 below) and (ii) for
violations or possible violations of any United States or foreign laws,
ordinances or regulations which do not, and insofar as reasonably can be
foreseen in the future, will not result in any charges, assessments, levies,
fines or other liabilities being imposed upon or incurred by the Company that
will equal $1 million for any single violation or $5 million in the aggregate.
Except as publicly disclosed by the Company in the Company SEC Reports, no
investigation or review by any Governmental Entity with respect to the Company
or its subsidiaries is pending or, to the knowledge of the Company, threatened
nor, to the knowledge of the Company, has any Governmental Entity indicated an
intention to conduct the same, other than such investigations or reviews as
would not, individually or in the aggregate, have a Material Adverse Effect on
the Company.
 
  SECTION 2.11. Employee Benefit Plans; Labor Matters.
 
  (a) Section 2.11(a) of the Company Disclosure Schedule lists all employee
benefit plans (as defined in Section 3(3) of the Employee Retirement Income
Security Act of 1974, as amended ("ERISA")) and all bonus, stock, option,
stock purchase, incentive, deferred compensation, supplemental retirement,
severance and other
 
                                     A-14
<PAGE>
 
similar fringe or employee benefit plans, programs or arrangements and any
current or former employment or executive compensation or severance agreements
written or otherwise maintained or contributed to for the benefit of or
relating to any employee of the Company, any trade or business (whether or not
incorporated) which is a member of a controlled group including the Company or
which is under common control with the Company within the meaning of Section
414 of the Code (an "ERISA Affiliate"), as well as each plan with respect to
which the Company or an ERISA Affiliate could incur liability under Section
4069 (if such plan has been or were terminated) or Section 4212(c) of ERISA
(together the "Employee Plans"), excluding former agreements under which the
Company has no remaining obligations and any of the foregoing that are
required to be maintained by the Company under the laws of any foreign
jurisdiction. The Company has made available to Parent a copy of (i) the most
recent annual report on Form 5500 filed with the Internal Revenue Service (the
"IRS") for each disclosed Employee Plan where such report is required and (ii)
the documents and instruments governing each such Employee Plan (other than
those referred to in Section 4(b)(4) of ERISA). No event has occurred and, to
the knowledge of the Company, there currently exists no condition or set of
circumstances in connection with which the Company or any of its subsidiaries
could be subject to any liability under the terms of any Employee Plans,
ERISA, the Code or any other applicable law, including, without limitation,
any liability under Title IV of ERISA, which would have a Material Adverse
Effect on the Company.
 
  (b) Section 2.11(b) of the Company Disclosure Schedule sets forth a list of
(i) all employment agreements with officers of the Company; (ii) all
agreements with consultants who are individuals obligating the Company to make
annual cash payments in an amount exceeding $50,000; (iii) of all severance
agreements, programs and policies of the Company with or relating to its
employees except programs and policies required to be maintained by law; and
(vi) all plans, programs, agreements and other arrangements of the Company
with or relating to its employees which contain change in control provisions.
The Company has made available to Parent copies (or descriptions in detail
reasonably satisfactory to Parent) of all such agreements, plans, programs and
other arrangements.
 
  (c) Except as disclosed in Section 2.11(c) of the Company Disclosure
Schedule and except for the acceleration, vesting and payment of the
performance units issued under the Company's Performance Unit Plan for the
Company's fiscal years ended March 31, 1995, 1996 and 1997, and the management
incentive bonuses for the Company fiscal year ended March 31, 1997, there will
be no payment, accrual of additional benefits, acceleration of payments or
vesting in any benefit under any Employee Plan or any agreement or arrangement
disclosed under this Section 2.11 solely by reason of entering into or in
connection with the transactions contemplated by this Agreement.
 
  (d) No Employee Plan that is a welfare benefit plan within the meaning of
Section 3(1) of ERISA provides benefits to former employees of the Company or
its ERISA Affiliates other than pursuant to Section 4980B of the Code.
 
  (e) There are no controversies pending or, to the knowledge of the Company,
threatened between the Company or any of its subsidiaries and any of their
respective employees which controversies have or may reasonably be expected to
have a Material Adverse Effect of the Company. Neither the Company nor any of
its subsidiaries is a party to any collective bargaining agreement or other
labor union contract applicable to persons employed by the Company or its
subsidiaries except as disclosed in Section 2.11(e) of the Company Disclosure
Schedule nor does the Company know of any activities or proceedings of any
labor union to organize any such employees. The Company has no knowledge of
any strikes, slowdowns, work stoppages, lockouts or threats thereof by or with
respect to any employees of the Company or any of its subsidiaries.
 
  SECTION 2.12. Environmental Laws and Regulations.
 
  (a) Except as publicly disclosed by the Company in the Company SEC Reports
(i) each of the Company and its subsidiaries is in material compliance with
all applicable federal, state, local and foreign laws and regulations relating
to pollution or protection of human health or the environment (including,
without limitation,
 
                                     A-15
<PAGE>
 
ambient air, surface water, ground water, land surface or subsurface strata)
(collectively "Environmental Laws") except for non-compliance that would not
have a Material Adverse Effect on the Company, which compliance includes, but
is not limited to, the possession by the Company and its subsidiaries of all
material permits and other governmental authorizations required under
applicable Environmental Laws and compliance with the terms and conditions
thereof; (ii) none of the Company or its subsidiaries has received written
notice of or, to the knowledge of the Company, is the subject of any action,
cause of action, claim, investigation, demand or notice by any person or
entity alleging liability under or non-compliance with any Environmental Law
(an "Environmental Claim") that could reasonably be expected to have a
Material Adverse Effect on the Company; and (iii) to the knowledge of the
Company, there are no circumstances that are reasonably likely to prevent or
interfere with such material compliance in the future.
 
  (b) Except as disclosed in the Company SEC Reports, there are no
Environmental Claims which could reasonably be expected to have a Material
Adverse Effect on the Company that are pending or, to the knowledge of the
Company, threatened against the Company or its subsidiaries or, to the
knowledge of the Company, against any person or entity whose liability for any
Environmental Claim the Company or any of its subsidiaries has or may have
retained or assumed either contractually or by operation of law.
 
  SECTION 2.13. Taxes.
 
  (a) Definitions. For purposes of this Agreement:
 
    (i) the term "Tax" (including "Taxes") means (A) all federal, state,
  local, foreign and other net income, gross income, gross receipts, sales,
  use, ad valorem, transfer, franchise, profits, license, lease, service,
  service use, withholding, payroll, employment, excise, severance, stamp,
  occupation, premium, property, windfall profits, customs, duties or other
  taxes, fees, assessments or charges of any kind whatsoever, together with
  any interest and any penalties, additions to tax or additional amounts with
  respect thereto, (B) any liability for payment of amounts described in
  clause (A) whether as a result of transferee liability, of being a member
  of an affiliated, consolidated, combined or unitary group for any period,
  or otherwise through operation of law, and (C) any liability for the
  payment of amounts described in clauses (A) or (B) as a result of any tax
  sharing, tax indemnity or tax allocation agreement or any other express or
  implied agreement to indemnify any other person; and
 
    (ii) the term "Tax Return" means any return, declaration, report,
  statement, information statement and other document required to be filed
  with respect to Taxes.
 
  (b) Except as set forth in Section 2.13(b) of the Company Disclosure
Schedule, the Company and its subsidiaries have accurately prepared and timely
filed all Tax Returns they are required to have filed. Such Tax Returns are
accurate and correct in all material respects and do not contain a disclosure
statement under Section 6662 of the Code (or any predecessor provision or
comparable provision of state, local or foreign law).
 
  (c) The Company and its subsidiaries have paid or adequately provided for
all Taxes (whether or not shown on any Tax Return) they are required to have
paid or to pay.
 
  (d) Except as set forth in Section 2.13(d) of the Company Disclosure
Schedule, no material claim for assessment or collection of Taxes is presently
being asserted against the Company or its subsidiaries and neither the Company
nor any of its subsidiaries is a party to any pending action, proceeding, or
investigation by any governmental taxing authority nor does the Company have
knowledge of any such threatened action, proceeding or investigation.
 
  (e) Except as set forth in Section 2.13(e) of the Company Disclosure
Schedule, neither the Company nor any of its subsidiaries is a party to any
agreement, contract, arrangement or plan that has resulted or would result,
separately or in the aggregate, in connection with this Agreement or any
change of control of the Company or any of its subsidiaries, in the payment of
any "excess parachute payments" within the meaning of Section 28OG of the
Code.
 
                                     A-16
<PAGE>
 
  SECTION 2.14. Intellectual Property; Software.
 
  (a) Each of the Company and its subsidiaries owns or possesses adequate
licenses or other valid rights to use all existing United States and foreign
patents, trademarks, trade names, service marks, copyrights, trade secrets and
applications therefor (the "Company Intellectual Property Rights"), except
where the failure to own or possess valid rights to use such Company
Intellectual Property Rights would not have a Material Adverse Effect on the
Company.
 
  (b) Except for any of the following which would not reasonably be expected
to have a Material Adverse Effect on the Company,
 
    (i) the validity of the Company Intellectual Property Rights and the
  title thereto of the Company or any subsidiary as the case may be is not
  being questioned in any litigation to which the Company or any subsidiary
  is a party, and
 
    (ii) except as set forth in Section 2.14(c) of the Company Disclosure
  Schedule, the conduct of the business of the Company and its subsidiaries
  as now conducted does not to, the knowledge of the Company, infringe any
  valid patents, trademarks, trade names, service marks, or copyrights of
  others The consummation of the transactions completed hereby will not
  result in the loss or impairment of any Company Intellectual Property
  Rights.
 
  SECTION 2.15. Government Contracts.
 
  (a) With respect to each Government Contract or Bid to which Company or any
affiliate of the Company is a party: (i) the Company has fully complied with
all material terms and conditions and all applicable requirements of statute,
rule, regulation, order or agreement, whether incorporated expressly, by
reference or by operation of law; (ii) all representations and certifications
were current, accurate and complete when made, and the Company has fully
complied with all such representations and certifications; (iii) no allegation
has been made, either orally or in writing, that the Company is in breach or
violation of any statutory, regulatory or contractual requirement; (iv) no
termination for convenience, termination for default, cure notice or show
cause notice has been issued; (v) no cost incurred by the Company or its
subcontractors has been questioned or disallowed; and (vi) no money due to the
Company has been (or has threatened to be) withheld or set off.
 
  (b) Neither the Company, any affiliate of the Company, nor any of the
Company's directors, officers, employees, agents or consultants is (or for the
last three years has been) (i) except as set forth in Section 2.15(b) of the
Company Disclosure Schedule, under administrative, civil or criminal
investigation, indictment or information, audit or internal investigation with
respect to any alleged irregularity, misstatement or omission regarding a
Government Contract or Bid; or (ii) suspended or debarred from doing business
with the U.S. Government or any state or local government or declared
nonresponsible or ineligible for government contracting. Except as set forth
in Section 2.15(b) of the Company Disclosure Schedule, neither the Company nor
any affiliate of the Company has made a voluntary disclosure to any U.S.
Government, state or local government entity with respect to any alleged
irregularity, misstatement or omission arising under or relating to any
Government Contract or Bid. Except as set forth in Section 2.15(b) of the
Company Disclosure Schedule, the Company knows of no circumstances that would
warrant the institution of suspension or debarment proceedings or the finding
of nonresponsibility or ineligibility on the part of the Company in the
future.
 
  (c) Neither the U.S. Government, any state or local government nor any prime
contractor, subcontractor or vendor has asserted any claim or initiated any
dispute proceeding against the Company, nor has the Company asserted any claim
or initiated any dispute proceeding, directly or indirectly, against any such
party, concerning any Government Contract or Bid. There are no facts of which
the Company is aware upon which such a claim or dispute proceeding may be
based in the future.
 
  (d) For purposes of this Section 2.15, the following terms shall have the
meanings set forth below:
 
    (i) "Bid" means any quotation, bid or proposal by the Company or any of
  its Affiliates which, if accepted or awarded, would lead to a contract with
  the U.S. Government or any other entity, including a
 
                                     A-17
<PAGE>
 
  prime contractor or a higher tier subcontractor to the U.S. Government, for
  the design, manufacture or sale of products or the provision of services by
  the Company.
 
    (ii) "Government Contract" means any prime contract, subcontract, teaming
  agreement or arrangement, joint venture, basic ordering agreement, letter
  contract, purchase order, delivery order, Bid, change order, arrangement or
  other commitment of any kind relating to the business of the Company
  between the Company and (i) the U.S. Government, (ii) any prime contractor
  to the U.S. Government or (iii) any subcontractor with respect to any
  contract described in clause (i) or (ii).
 
    (iii) "U.S. Government" means the United States government including any
  and all agencies, commissions, branches, instrumentalities and departments
  thereof.
 
  SECTION 2.16. Certain Business Practices. None of the Company, any of its
subsidiaries or any directors, officers, agents or employees of the Company or
any of its subsidiaries has (i) used any funds for unlawful contributions,
gifts, entertainment or other unlawful expenses related to political activity,
(ii) made any unlawful payment to foreign or domestic government officials or
employees or to foreign or domestic political parties or campaigns or violated
any provision of the Foreign Corrupt Practices Act of 1977, as amended, or
(iii) made any other unlawful payment.
 
  SECTION 2.17. Vote Required. The affirmative vote of the holders of a
majority of the outstanding Shares is the only vote of the holders of any
class or series of the Company's capital stock necessary to approve and adopt
this Agreement.
 
  SECTION 2.18. Tax Treatment; Pooling. Neither the Company nor, to the
knowledge of the Company, any of its affiliates has taken or agreed to take
action that would prevent the Merger from (a) constituting a reorganization
qualifying under the provisions of Section 368(a) of the Code or (b) being
treated for financial accounting purposes as a pooling of interests in
accordance with generally accepted accounting principles and the rules
regulations and interpretations of the SEC (a "Pooling Transaction").
 
  SECTION 2.19. Affiliates. Except for the directors and executive officers of
the Company, each of whom is listed in Section 2.19 of the Company Disclosure
Schedule, there are no persons who, to the knowledge of the Company, may be
deemed to be affiliates of the Company under Rule 145 of the Securities Act
("Company Affiliates"). Concurrently with the execution and delivery of this
Agreement, the Company has delivered to Parent an executed letter agreement
substantially in the form of Exhibit A-1 hereto from certain of the Company
Affiliates and will deliver to Parent within ten days after the date of this
Agreement an executed letter agreement substantially in the form of Exhibit A-
1 hereto from all other Company Affiliates.
 
  SECTION 2.20. Opinion of Financial Adviser. Goldman, Sachs & Co. Inc. (the
"Company Financial Adviser") has delivered to the Company Board its written
opinion dated the date of this Agreement to the effect that as of such date
the Merger Consideration is fair to the holders of Shares.
 
  SECTION 2.21. Brokers. No broker, finder or investment banker (other than
the Company Financial Adviser, a true and correct copy of whose engagement
agreement has been provided to Acquisition or Parent) is entitled to any
brokerage finder's or other fee or commission in connection with the
transactions contemplated by this Agreement based upon arrangements made by or
on behalf of the Company.
 
                                     A-18
<PAGE>
 
                                   ARTICLE 3
 
                        REPRESENTATIONS AND WARRANTIES
                           OF PARENT AND ACQUISITION
 
  Parent and Acquisition hereby represent and warrant to the Company as
follows:
 
  SECTION 3.1. Organization.
 
  (a) Each of Parent and Acquisition is duly organized, validly existing and
in good standing under the laws of the State of Delaware and has all requisite
power and authority to own, lease and operate its properties and to carry on
its businesses as now being conducted. Parent has heretofore delivered to the
Company accurate and complete copies of the Certificate of Incorporation and
bylaws as currently in effect of Parent and Acquisition.
 
  (b) Each of Parent and Acquisition is duly qualified or licensed and in good
standing to do business in each jurisdiction in which the property owned,
leased or operated by it or the nature of the business conducted by it makes
such qualification or licensing necessary, except in such jurisdictions where
the failure to be so duly qualified or licensed and in good standing would not
have a Material Adverse Effect on Parent. When used in connection with Parent
or Acquisition the term "Material Adverse Effect on Parent" means any change
or effect that is (i) materially adverse to the business, results of
operations, condition (financial or otherwise) or prospects of Parent and its
subsidiaries, taken as a whole, or (ii) that may impair the ability of Parent
and/or Acquisition to consummate the transactions contemplated hereby.
 
  SECTION 3.2. Capitalization of Parent and its Subsidiaries.
 
  (a) The authorized capital stock of Parent consists of 200,000,000 shares of
Parent Common Stock, of which, as of March 25, 1997, 58,007,567 shares of
Parent Common Stock were issued and outstanding (each together with a Parent
Common Stock purchase right (the "Parent Rights") issued pursuant to the
Rights Agreement dated as of August 2, 1991 and amended on September 28, 1994
between Parent and Chemical Bank, N.A.) and 10,000,000 shares of preferred
stock, $1.00 par value per share, none of which are outstanding. All of the
outstanding shares of Parent Common Stock have been validly issued and are
fully paid, nonassessable and free of preemptive rights. As of March 25, 1997,
3,054,943 shares of Parent Common Stock were reserved for issuance and
issuable upon or otherwise deliverable in connection with the exercise of
outstanding options. Between March 25, 1997 and the date hereof, no shares of
Parent's capital stock have been issued other than pursuant to stock options
already in existence on such date and except for grants of stock options to
employees officers and directors in the ordinary course of business consistent
with past practice between March 25, 1997 and the date hereof, no stock
options have been granted. Except as set forth above and except for the Parent
Rights, as of the date hereof, there are outstanding (i) no shares of capital
stock or other voting securities of Parent (ii) no securities of Parent or its
subsidiaries convertible into or exchangeable for shares of capital stock, or
voting securities of Parent (iii) no options or other rights to acquire from
Parent or its subsidiaries and no obligations of Parent or its subsidiaries to
issue any capital stock voting securities or securities convertible into or
exchangeable for capital stock or voting securities of Parent and (iv) except
for Parent's Non-Employee Directors Equity Participation Plan, no equity
equivalent interests in the ownership or earnings of Parent or its
subsidiaries or other similar rights (collectively "Parent Securities"). As of
the date hereof, there are no outstanding obligations of Parent or any of its
subsidiaries to repurchase, redeem or otherwise acquire any Parent Securities.
There are no stockholder agreements, voting trusts or other agreements or
understandings to which Parent is a party or by which it is bound relating to
the voting of any shares of capital stock of Parent.
 
  (b) The Parent Common Stock constitutes the only class of equity securities
of Parent or its subsidiaries registered or required to be registered under
the Exchange Act.
 
  SECTION 3.3. Authority Relative to this Agreement. Each of Parent and
Acquisition has all necessary corporate power and authority to execute and
deliver this Agreement and to consummate the transactions contemplated hereby.
The execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly and validly authorized by the
boards of directors of Parent and Acquisition
 
                                     A-19
<PAGE>
 
and by Parent as the sole stockholder of Acquisition and no other corporate
proceedings on the part of Parent or Acquisition are necessary to authorize
this Agreement or to consummate the transactions contemplated hereby. This
Agreement has been duly and validly executed and delivered by each of Parent
and Acquisition and constitutes a valid, legal and binding agreement of each
of Parent and Acquisition enforceable against each of Parent and Acquisition
in accordance with its terms.
 
  SECTION 3.4. SEC Reports; Financial Statements.
 
  (a) Parent has filed all required forms, reports and documents ("Parent SEC
Reports") with the SEC since December 31, 1993, each of which has complied in
all material respects with all applicable requirements of the Securities Act
and the Exchange Act, each as in effect on the dates such forms reports and
documents were filed. None of such Parent SEC Reports, including, without
limitation, any financial statements or schedules included or incorporated by
reference therein, contained when filed any untrue statement of a material
fact or omitted to state a material fact required to be stated or incorporated
by reference therein or necessary in order to make the statements therein in
light of the circumstances under which they were made not misleading. The
audited consolidated financial statements of Parent included in the Parent SEC
Reports fairly present in conformity with generally accepted accounting
principles applied on a consistent basis (except as may be indicated in the
notes thereto) the consolidated financial position of Parent and its
consolidated subsidiaries as of the dates thereof and their consolidated
results of operations and changes in financial position for the periods then
ended.
 
  (b) Parent has heretofore made available or promptly will make available to
the Company a complete and correct copy of any amendments or modifications
which are required to be filed with the SEC but have not yet been filed with
the SEC to agreements documents or other instruments which previously had been
filed by Parent with the SEC pursuant to the Exchange Act.
 
  SECTION 3.5. Information Supplied. None of the information supplied or to be
supplied by Parent or Acquisition for inclusion or incorporation by reference
to (i) the S-4 will at the time the S-4 is filed with the SEC and at the time
it becomes effective under the Securities Act contain any untrue statement of
a material fact or omit to state any material fact required to be stated
therein or necessary to make the statements therein not misleading and (ii)
the Proxy Statement will at the date mailed to stockholders and at the times
of the meeting or meetings of stockholders of the Company to be held in
connection with the Merger contain any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary in
order to make the statements therein in light of the circumstances under which
they are made not misleading. The S-4 will comply as to form in all material
respects with the provisions of the Securities Act and the rules and
regulations thereunder.
 
  SECTION 3.6. Consents and Approvals; No Violations. Except for filings,
permits, authorizations, consents, and approvals as may be required under and
other applicable requirements of the Securities Act, the Exchange Act, state
securities or blue sky laws, the HSR Act and the filing and recordation of the
Merger Certificate as required by the DGCL, no filing with or notice to, and
no permit, authorization, consent or approval of any Governmental Entity is
necessary for the execution and delivery by Parent or Acquisition of this
Agreement or the consummation by Parent or Acquisition of the transactions
contemplated hereby, except where the failure to obtain such permits,
authorizations, consents or approvals or to make such filings or give such
notice would not have a Material Adverse Effect on Parent. Neither the
execution, delivery and performance of this Agreement by Parent or Acquisition
nor the consummation by Parent or Acquisition of the transactions contemplated
hereby will (i) conflict with or result in any breach of any provision of the
respective Certificate of Incorporation or bylaws (or similar governing
documents) of Parent or Acquisition or any of Parent's other subsidiaries,
(ii) result in a violation or breach of or constitute (with or without due
notice or lapse of time or both) a default (or give rise to any right of
termination, amendment, cancellation or acceleration or Lien) under any of the
terms, conditions or provisions of any note, bond, mortgage, indenture, lease,
license, contract, agreement or other instrument or obligation to which Parent
or Acquisition or any of Parent's other subsidiaries is a party or by which
any of them or any of their respective properties or assets may be bound or
(iii) violate any order, writ, injunction, decree, law, statute, rule or
regulation applicable to Parent or Acquisition or any of
 
                                     A-20
<PAGE>
 
Parent's other subsidiaries or any of their respective properties or assets
except, in the case of (ii) or (iii), for violations, breaches or defaults
which would not have a Material Adverse Effect on Parent.
 
  SECTION 3.7. No Default. None of Parent or any of its subsidiaries is in
breach, default or violation (and no event has occurred which with notice or
the lapse of time or both would constitute a breach, default or violation) of
any term, condition or provision of (i) its Certificate of Incorporation or
bylaws (or similar governing documents), (ii) any note, bond, mortgage,
indenture, lease, license, contract, agreement or other instrument or
obligation to which Parent or any of its subsidiaries is now a party or by
which any of them or any of their respective properties or assets may be bound
or (iii) any order, writ, injunction, decree, law, statute, rule or regulation
applicable to Parent or any of its subsidiaries or any of their respective
properties or assets except, in the case of (ii) or (iii), for violations,
breaches or defaults that would not have a Material Adverse Effect on Parent.
 
  SECTION 3.8. No Undisclosed Liabilities; Absence of Changes. Except as and
to the extent publicly disclosed by Parent in the Parent SEC Reports, none of
Parent or its subsidiaries has any liabilities or obligations of any nature,
whether or not accrued, contingent or otherwise that would be required by
generally accepted accounting principles to be reflected on a consolidated
balance sheet of Parent and its consolidated subsidiaries (including the notes
thereto), other than liabilities incurred in the ordinary course of business
since December 31, 1996, none of which, individually or in the aggregate,
would have a Material Adverse Effect on Parent. Except as publicly disclosed
by Parent in the Parent SEC Reports, since December 31, 1996, there have been
no events changes or effects with respect to Parent or its subsidiaries having
or which could reasonably be expected to have a Material Adverse Effect on
Parent.
 
  SECTION 3.9. Litigation. Except as publicly disclosed by Parent in the
Parent SEC Reports, there is no suit, claim, action, proceeding or
investigation pending or, to the knowledge of Parent threatened, against
Parent or any of its subsidiaries or any of their respective properties or
assets before any Governmental Entity which, individually or in the aggregate
could reasonably be expected to have a Material Adverse Effect or could
reasonably be expected to prevent or delay the consummation of the
transactions contemplated by this Agreement. Except as publicly disclosed by
Parent in the Parent SEC Reports, none of Parent or its subsidiaries is
subject to any outstanding order, writ, injunction or decree which, insofar as
can be reasonably foreseen in the future could reasonably be expected to have
a Material Adverse Effect on Parent or could reasonably be expected to prevent
or delay the consummation of the transactions contemplated hereby.
 
  SECTION 3.10. Compliance with Applicable Law. Except as publicly disclosed
by Parent in the Parent SEC Reports, Parent and its subsidiaries hold all
permits, licenses, variances, exemptions, orders and approvals of all
Governmental Entities necessary for the lawful conduct of their respective
businesses (the "Parent Permits") except for failures to hold such permits,
licenses, variances, exemptions, orders and approvals which would not have a
Material Adverse Effect on Parent. Except as publicly disclosed by Parent in
the Parent SEC Reports, Parent and its subsidiaries are in compliance with the
terms of the Parent Permits except where the failure so to comply would not
have a Material Adverse Effect on Parent. Except as publicly disclosed by
Parent in the Parent SEC Reports, the businesses of Parent and its
subsidiaries are not being conducted in violation of any law ordinance or
regulation of any Governmental Entity except that no representation or
warranty is made in this Section 3.10 with respect to Environmental Laws and
except for violations or possible violations which do not and, insofar as
reasonably can be foreseen in the future, will not have a Material Adverse
Effect on Parent. Except as publicly disclosed by Parent in the Parent SEC
Reports, no investigation or review by any Governmental Entity with respect to
Parent or its subsidiaries is pending or, to the knowledge of Parent,
threatened nor, to the knowledge of Parent, has any Governmental Entity
indicated an intention to conduct the same, other than in each case those
which Parent reasonably believes will not have a Material Adverse Effect on
Parent.
 
  SECTION 3.11. Employee Benefit Plans; Labor Matters. With respect to each
employee benefit plan, program, arrangement and contract (including, without
limitation, any "employee benefit plan," as defined in Section 3(3) of ERISA)
maintained or contributed to by Parent or any of its subsidiaries or with
respect to which
 
                                     A-21
<PAGE>
 
Parent or any of its subsidiaries could incur liability under Section 4069,
4212(c) or 4204 of ERISA (the "Parent Benefit Plans") no event has occurred
and, to the knowledge of Parent, there currently exists no condition or set of
circumstances in connection with which Parent or any of its subsidiaries could
be subject to any liability under the terms of the Parent Benefit Plans ERISA
the Code or any other applicable law which would have a Material Adverse
Effect on Parent. There is no pending or threatened labor dispute strike or
work stoppage against Parent or any of its subsidiaries which may reasonably
be expected to have a Material Adverse Effect on Parent.
 
  SECTION 3.12. Environmental Laws and Regulations.
 
  (a) Except as publicly disclosed by Parent in the Parent SEC Reports, (i)
each of Parent and its subsidiaries is in material compliance with all
Environmental Laws except for non-compliance that would not have a Material
Adverse Effect on Parent which compliance includes, but is not limited to, the
possession by Parent and its subsidiaries of all material permits and other
governmental authorizations required under applicable Environmental Laws and
compliance with the terms and conditions thereof; (ii) none of Parent or its
subsidiaries has received written notice of or, to the knowledge of Parent, is
the subject of any Environmental Claim that could reasonably be expected to
have a Material Adverse Effect on Parent; and (iii) to the knowledge of
Parent, there are no circumstances that are reasonably likely to prevent or
interfere with such material compliance in the future.
 
  (b) Except as publicly disclosed by Parent in the Parent SEC Reports, there
are no Environmental Claims which could reasonably be expected to have a
Material Adverse Effect on Parent that are pending or, to the knowledge of
Parent, threatened against Parent or any of its subsidiaries or, to the
knowledge of Parent, against any person or entity whose liability for any
Environmental Claim Parent or its subsidiaries has or may have retained or
assumed either contractually or by operation of law.
 
  SECTION 3.13. Tax Matters. Except as publicly disclosed by Parent in the
Parent SEC Reports, Parent and its subsidiaries have accurately prepared and
duly filed with the appropriate federal, state, local and foreign taxing
authorities all tax returns information returns and reports required to be
filed with respect to Parent and its subsidiaries and have paid in full or
made adequate provision for the payment of all Taxes.
 
  SECTION 3.14. Tax Treatment; Pooling. Neither Parent, Acquisition nor, to
the knowledge of Parent, any of its affiliates has taken, proposes to take, or
has agreed to take any action that would prevent the Merger (a) from
constituting a reorganization qualifying under the provisions of Section
368(a) of the Code or (b) from being treated as a Pooling Transaction for
financial accounting purposes. Within 10 days after the date of this
Agreement, Parent will obtain from each of its directors, officers and
affiliates a letter agreement substantially in the form of Exhibit A-2.
 
  SECTION 3.15. Opinion of Financial Adviser. Salomon Brothers Inc. (the
"Parent Financial Adviser") has delivered to the Board of Directors of Parent
its opinion dated as of the date of this Agreement to the effect that as of
such date the Merger Consideration contemplated by the Merger is fair to the
holders of shares of Parent Common Stock.
 
  SECTION 3.16. Brokers. No broker finder or investment banker (other than the
Parent Financial Adviser) is entitled to any brokerage finder's or other fee
or commission in connection with the transactions contemplated by this
Agreement based upon arrangements made by or on behalf of Parent or
Acquisition.
 
  SECTION 3.17. No Prior Activities. Except for obligations incurred in
connection with its incorporation or organization or the negotiation and
consummation of this Agreement and the transactions contemplated hereby,
Acquisition has neither incurred any obligation or liability nor engaged in
any business or activity of any type or kind whatsoever or entered into any
agreement or arrangement with any person.
 
                                     A-22
<PAGE>
 
                                   ARTICLE 4
 
                                   COVENANTS
 
  SECTION 4.1. Conduct of Business of the Company. Except as contemplated by
this Agreement or as described in Section 4.1 of the Company Disclosure
Schedule, during the period from the date hereof to the Effective Time, the
Company will and will cause each of its subsidiaries to conduct its operations
in the ordinary course of business consistent with past practice and, to the
extent consistent therewith, with no less diligence and effort than would be
applied in the absence of this Agreement seek, to preserve intact its current
business organizations, keep available the service of its current officers and
employees and preserve its relationships with customers, suppliers and others
having business dealings with it to the end that goodwill and ongoing
businesses shall be unimpaired at the Effective Time. Without limiting the
generality of the foregoing, except as otherwise expressly provided in this
Agreement or as described in Section 4.1 of the Company Disclosure Schedule,
prior to the Effective Time, neither the Company nor any of its subsidiaries
will, without the prior written consent of Parent and Acquisition:
 
  (a) amend its Certificate of Incorporation or bylaws (or other similar
governing instrument);
 
  (b) amend the Company Rights Agreement in any manner that would permit any
person to acquire more than 20% of the Shares, or redeem the Company Rights;
 
  (c) authorize for issuance, issue, sell, deliver or agree or commit to issue
sell or deliver (whether through the issuance or granting of options,
warrants, commitments, subscriptions, rights to purchase or otherwise) any
stock of any class or any other securities (except bank loans) or equity
equivalents (including, without limitation, any stock options or stock
appreciation rights) except for the issuance and sale of Shares pursuant to
options previously granted under the Company Plans;
 
  (d) split, combine or reclassify any shares of its capital stock, declare,
set aside or pay any dividend or other distribution (whether in cash, stock or
property or any combination thereof) in respect of its capital stock except
for quarterly cash dividends not in excess of $0.06 per Share paid in
accordance with past practice, make any other actual, constructive or deemed
distribution in respect of its capital stock or otherwise make any payments to
stockholders in their capacity as such, or redeem or otherwise acquire any of
its securities or any securities of any of subsidiaries;
 
  (e) adopt a plan of complete or partial liquidation, dissolution, merger,
consolidation, restructuring, recapitalization or other reorganization of the
Company or any of its subsidiaries (other than the Merger);
 
  (f) alter through merger, liquidation, reorganization, restructuring or any
other fashion the corporate structure of ownership of any subsidiary;
 
  (g)(i) incur or assume any long-term or short-term debt or issue any debt
securities except for borrowings under existing lines of credit in the
ordinary course of business; (ii) assume, guarantee, endorse or otherwise
become liable or responsible (whether directly, contingently or otherwise) for
the obligations of any other person except in the ordinary course of business
consistent with past practice and except for obligations of subsidiaries of
the Company incurred in the ordinary course of business; (iii) make any loans,
advances or capital contributions to or investments in any other person (other
than to subsidiaries of the Company or customary loans or advances to
employees in each case in the ordinary course of business consistent with past
practice) (iv) pledge or otherwise encumber shares of capital stock of the
Company or its subsidiaries; or (v) mortgage or pledge any of its material
assets, tangible or intangible, or create or suffer to exist any material Lien
thereupon (other than Tax Liens for Taxes not yet due);
 
  (h) except as may be required by law, enter into, adopt or amend or
terminate any bonus, profit sharing, compensation, severance, termination,
stock option, stock appreciation right, restricted stock, performance unit,
stock equivalent, stock purchase agreement, pension, retirement, deferred
compensation, employment, severance or other employee benefit agreement,
trust, plan, fund or other arrangement for the benefit or welfare of any
 
                                     A-23
<PAGE>
 
director, officer or employee in any manner or increase in any manner the
compensation or fringe benefits of any director, officer or employee or pay
any benefit not required by any plan and arrangement as in effect as of the
date hereof (including, without limitation, the granting of stock appreciation
rights or performance units); provided, however, that this paragraph (g) shall
not prevent the Company or its subsidiaries from (i) entering into employment
agreements or severance agreements with new employees in the ordinary course
of business and consistent with past practice or (ii) increasing annual
compensation and/or providing for or amending bonus arrangements for employees
for fiscal 1997 in the ordinary course of year-end compensation reviews
consistent with past practice (to the extent that such compensation increases
and new or amended bonus arrangements do not result in a material increase in
benefits or compensation expense to the Company);
 
  (i) acquire, sell, lease or dispose of any assets in any single transaction
or series of related transactions having a fair market value in excess of $1
million in the aggregate (other than in connection with outsourcing agreements
entered into with customers of the Company or its subsidiaries);
 
  (j) except as may be required as a result of a change in law or in generally
accepted accounting principles, change any of the accounting principles or
practices used by it;
 
  (k) revalue in any material respect any of its assets including without
limitation writing down the value of inventory or writing-off notes or
accounts receivable other than in the ordinary course of business;
 
  (l)(i) acquire (by merger, consolidation or acquisition of stock or assets)
any corporation, partnership or other business organization or division
thereof or any equity interest therein (other than in connection with
outsourcing agreements entered into with customers of the Company or its
subsidiaries); (ii) enter into any contract or agreement other than in the
ordinary course of business consistent with past practice which would be
material to the Company and its subsidiaries, taken as a whole; (iii)
authorize any new capital expenditure or expenditures which individually is in
excess of $100,000 or in the aggregate are in excess of $500,000; provided
that none of the foregoing shall limit any capital expenditure required
pursuant to existing customer contracts;
 
  (m) make any tax election or settle or compromise any income tax liability
material to the Company and its subsidiaries taken as a whole;
 
  (n) settle or compromise any pending or threatened suit, action or claim
which (i) relates to the transactions contemplated hereby or (ii) the
settlement or compromise of which could have a Material Adverse Effect on the
Company;
 
  (o) commence any material software development project or terminate any
material software development project that is currently ongoing, in either
case except pursuant to the terms of existing contracts with customers or
except as contemplated by the Company's project development budget previously
provided to Parent; or
 
  (p) take or agree in writing or otherwise to take any of the actions
described in Sections 4.1(a) through 4.1(o) or any action which would make any
of the representations or warranties of the Company contained in this
Agreement untrue or incorrect.
 
  SECTION 4.2. Conduct of Business of Parent. Except as contemplated by this
Agreement, during the period from the date hereof to the Effective Time,
Parent will and will cause each of its subsidiaries to conduct their
operations in the ordinary course of business consistent with past practice
and, to the extent consistent therewith, with no less diligence and effort
than would be applied in the absence of this Agreement, seek to preserve
intact its current business organizations, keep available the service of its
current officers and employees and preserve its relationships with customers,
suppliers and others having business dealings with it to the end that goodwill
and ongoing businesses shall be unimpaired at the Effective Time. Without
limiting the generality of the foregoing, except as otherwise expressly
provided in this Agreement prior to the Effective Time, neither Parent nor any
of its subsidiaries will, without the prior written consent of the Company:
 
  (a) knowingly take any action that would result in a failure to maintain the
trading of the Parent Common Stock on the NYSE;
 
                                     A-24
<PAGE>
 
  (b) declare, set aside or pay any dividend or other distribution in respect
of its capital stock except for customary quarterly cash dividends not in
excess of $0.40 per share, dividends payable in Parent Common Stock or
dividends by a subsidiary of Parent to Parent or another subsidiary of Parent;
 
  (c) acquire or agree to acquire by merging or consolidating with by
purchasing an equity interest in or the assets of or by any other manner any
business or any corporation, partnership or other business organization or
division thereof or otherwise acquire or agree to acquire any assets of any
other entity (other than the purchase of assets from suppliers, clients or
vendors in the ordinary course of business and consistent with past practice)
if such transaction would prevent or materially delay the consummation of the
transactions contemplated by this Agreement;
 
  (d) adopt or propose to adopt any amendments to its charter documents which
would have an adverse impact on the consummation of the transactions
contemplated by this Agreement;
 
  (e) take or agree in writing or otherwise to take any of the actions
described in Sections 4.1(a) through 4.1(d) or any action which would make any
of the representations or warranties of Parent contained in this Agreement
untrue or incorrect.
 
  SECTION 4.3. Preparation of S-4 and the Proxy Statement. The Company shall
promptly prepare and file with the SEC the Proxy Statement and Parent shall
promptly prepare and file with the SEC the S-4 in which the Proxy Statement
will be included as a prospectus. Each of Parent and the Company shall use its
best efforts to have the S-4 declared effective under the Securities Act as
promptly as practicable after such filing. Parent shall also take any action
(other than qualifying to do business in any jurisdiction in which it is now
not so qualified) required to be taken under any applicable state securities
laws in connection with the issuance of Parent Common Stock in the Merger and
upon the exercise of Company Stock Options and the Company shall furnish all
information concerning the Company and the holders of Shares as may be
reasonably requested in connection with any such action.
 
  SECTION 4.4. Other Potential Acquirers.
 
  (a) The Company, its affiliates and their respective officers, directors,
employees, representatives and agents shall immediately cease any discussions
or negotiations with any parties with respect to any Third Party Acquisition
(as defined below). Neither the Company nor any of its affiliates shall, nor
shall the Company authorize or permit any of its or their respective officers,
directors, employees representatives or agents to, directly or indirectly,
encourage, solicit, participate in or initiate discussions or negotiations
with or provide any non-public information to any person or group (other than
Parent and Acquisition or any designees of Parent and Acquisition) concerning
any Third Party Acquisition; provided, however, that nothing herein shall
prevent the Company Board from taking and disclosing to the Company's
stockholders a position contemplated by Rules 14d-9 and 14e-2 promulgated
under the Exchange Act with regard to any tender offer. The Company shall
promptly notify the Parent in the event it receives any proposal or inquiry
concerning a Third Party Acquisition including the terms and conditions
thereof and the identity of the party submitting such proposal; and shall
advise the Parent from time to time of the status and any material
developments concerning the same.
 
  (b) Except as set forth in this Section 4.4(b) the Company Board shall not
withdraw its recommendation of the transactions contemplated hereby or approve
or recommend, or cause the Company to enter into any agreement with respect
to, any Third Party Acquisition. Notwithstanding the foregoing, if the Company
Board by a majority vote determines in its good faith judgment, after
consultation with and based upon the advice of, legal counsel that it is
required to do so in order to comply with its fiduciary duties, the Company
Board may withdraw its recommendation of the transactions contemplated hereby
or approve or recommend a Superior Proposal, but in each case only (i) after
providing reasonable written notice to Parent (a "Notice of Superior
Proposal") advising Parent that the Company Board has received a Superior
Proposal, specifying the material terms and conditions of such Superior
Proposal and identifying the person making such Superior Proposal and (ii) if
Parent does not, within five business days of Parent's receipt of the Notice
of Superior Proposal, make an offer which the Company Board by a majority vote
determines in its good faith judgment (based on the written
 
                                     A-25
<PAGE>
 
advice of a financial adviser of nationally recognized reputation) to be as
favorable to the Company's stockholders as such Superior Proposal; provided,
however, that the Company shall not be entitled to enter into any agreement
with respect to a Superior Proposal unless and until this Agreement is
terminated by its terms pursuant to Section 6.1. Any disclosure that the
Company Board may be compelled to make with respect to the receipt of a
proposal for a Third Party Acquisition in order to comply with its fiduciary
duties or Rule 14d-9 or 14e-2 will not constitute a violation of this Section
4.4(b) provided that such disclosure states that no action will be taken by
the Company Board with respect to the withdrawal of its recommendation of the
transactions contemplated hereby or the approval or recommendation of any
Third Party Acquisition except in accordance with this Section 4.4(b).
 
  (c) For the purposes of this Agreement, "Third Party Acquisition" means the
occurrence of any of the following events: (i) the acquisition of the Company
by merger or otherwise by any person (which includes a "person" as such term
is defined in Section 13(d)(3) of the Exchange Act) other than Parent,
Acquisition or any affiliate thereof (a "Third Party"); (ii) the acquisition
by a Third Party of more than 20% of the total assets of the Company and its
subsidiaries taken as a whole; (iii) the acquisition by a Third Party of 20%
or more of the outstanding Shares; (iv) the adoption by the Company of a plan
of liquidation or the declaration or payment of an extraordinary dividend; (v)
the repurchase by the Company or any of its subsidiaries of more than 20% of
the outstanding Shares; or (vi) the acquisition by the Company or any
subsidiary by merger, purchase of stock or assets, joint venture or otherwise
of a direct or indirect ownership interest or investment in any business whose
annual revenues, net income or assets is equal or greater than 20% of the
annual revenues, net income or assets of the Company. For purposes of this
Agreement, a "Superior Proposal" means any bona fide proposal to acquire
directly or indirectly for consideration consisting of cash and/or securities
more than 50% of the Shares then outstanding or all or substantially all the
assets of the Company and otherwise on terms which the Company Board by a
majority vote determines in its good faith judgment (based on the written
advice of a financial adviser of nationally recognized reputation) to be more
favorable to the Company's stockholders than the Merger.
 
  SECTION 4.5. Comfort Letters.
 
  (a) The Company shall use all reasonable efforts to cause Price Waterhouse
LLP to deliver a letter dated not more than five days prior to the date on
which the S-4 shall become effective and addressed to itself and Parent and
their respective Boards of Directors in form and substance reasonably
satisfactory to Parent and customary in scope and substance for agreed-upon
procedures letters delivered by independent public accountants in connection
with registration statements and proxy statements similar to the S-4 and the
Proxy Statement.
 
  (b) Parent shall use all reasonable efforts to cause Deloitte & Touche LLP
to deliver a letter dated not more than 5 days prior to the date of the S-4
shall become effective and addressed to itself and the Company and their
respective Boards of Directors in form and substance reasonably satisfactory
to the Company and customary in scope and substance for agreed upon procedures
letters delivered by independent accountants in connection with registration
statements and proxy statements similar to the S-4 and the Proxy Statement.
 
  SECTION 4.6. Meeting of Stockholders. The Company shall take all action
necessary in accordance with the DGCL and its Certificate of Incorporation and
bylaws to duly call, give notice of, convene and hold a meeting of its
stockholders as promptly as practicable to consider and vote upon the adoption
and approval of this Agreement and the transactions contemplated hereby. The
stockholder votes required for the adoption and approval of the transactions
contemplated by this Agreement shall be the vote required by the DGCL and the
Company's Certificate of Incorporation and bylaws. The Company will, through
its Board of Directors, recommend to its stockholders approval of such matters
subject to the provisions of Section 4.4(b).
 
  SECTION 4.7. Stock Exchange Listing. Parent shall use all reasonable efforts
to cause the shares of Parent Common Stock to be issued in the Merger and the
shares of Parent Common Stock to be reserved for issuance upon exercise of
Company Stock Options to be approved for listing on the NYSE, subject to
official notice of issuance, prior to the Effective Time.
 
                                     A-26
<PAGE>
 
  SECTION 4.8. Access to Information.
 
  (a) Between the date hereof and the Effective Time the Company will give
Parent and its authorized representatives and Parent will give the Company and
its authorized representatives reasonable access to all employees plants
offices warehouses and other facilities and to all books and records of itself
and its subsidiaries will permit the other party to make such inspections as
such party may reasonably require and will cause its officers and those of its
subsidiaries to furnish the other party with such financial and operating data
and other information with respect to the business and properties of itself
and its subsidiaries as the other party may from time to time reasonably
request.
 
  (b) Between the date hereof and the Effective Time the Company shall furnish
to Parent and Parent will furnish to the Company within 25 business days after
the end of each calendar month (commencing with April 1997) an unaudited
balance sheet of the party furnishing such information as of the end of the
such month and the related statements of earnings, stockholders' equity
(deficit) and within 25 business days after the end of each calendar quarter
cash flows for the quarter then ended each prepared in accordance with
generally accepted accounting principles in conformity with the practices
consistently applied by such party with respect to its monthly financial
statements. All the foregoing shall be in accordance with the books and
records of the party furnishing such information and shall fairly present its
financial position (taking into account the differences between the monthly
and quarterly statements prepared by such party in conformity with its past
practices) as of the last day of the period then ended.
 
  (c) Parent and Acquisition will hold and will cause its consultants and
advisers to hold in confidence all documents and information furnished to it
by or on behalf of the Company in connection with the transactions
contemplated by this Agreement pursuant to the terms of that certain
Confidentiality Agreement entered into between the Company and Parent dated
March 21, 1997. The Company will hold and will cause its consultants and
advisers to hold in confidence all documents and information furnished to it
by or on behalf of Parent or Acquisition in connection with the transactions
contemplated by this Agreement pursuant to the terms of that certain
Confidentiality Agreement entered into between Parent and the Company dated
May 3, 1997.
 
  SECTION 4.9. Additional Agreements; Reasonable Efforts. Subject to the terms
and conditions herein provided, each of the parties hereto agrees to use all
reasonable efforts to take or cause to be taken all action and to do or cause
to be done all things reasonably necessary, proper or advisable under
applicable laws and regulations to consummate and make effective the
transactions contemplated by this Agreement, including, without limitation,
(i) cooperating in the preparation and filing of the Proxy Statement and the
S-4, any filings that may be required under the HSR Act and any amendments to
any thereof; (ii) obtaining consents of all third parties and Governmental
Entities necessary proper or advisable for the consummation of the
transactions contemplated by this Agreement; (iii) contesting any legal
proceeding relating to the Merger and (iv) executing any additional
instruments necessary to consummate the transactions contemplated hereby.
Subject to the terms and conditions of this Agreement Parent and Acquisition
agree to use all reasonable efforts to cause the Effective Time to occur as
soon as practicable after the Company stockholder vote with respect to the
Merger. If at any time after the Effective Time any further action is
necessary to carry out the purposes of this Agreement the proper officers and
directors of each party hereto shall take all such necessary action.
 
  SECTION 4.10. Employee Benefits. Parent will provide the employees and
retirees of the Company and its subsidiaries, for a period ending on the first
anniversary of the Effective Time, with compensation and employee benefits of
the type described in Section 2.11 of this Agreement (other than stock option
or other plans involving the potential issuance or purchase on the open market
of securities of the Company or of Parent, the provision of which by Parent
will be governed by Section 1.11) which in the aggregate are comparable to
those currently provided by the Company and its subsidiaries as the case may
be. Parent agrees and will cause the Surviving Corporation to agree that (i)
all obligations of the Company or any subsidiary under any "change of control"
or similar provisions relating to employees contained in any existing
contracts and all termination or severance agreements with executive officers
identified in Section 2.11(c) of the Company Disclosure Schedule (subject to
Section 1.11 hereof) will be honored in accordance with their terms as of the
date hereof and (ii) the RSPP of
 
                                     A-27
<PAGE>
 
the Company will continue in effect with respect to the Shares issued
thereunder and Parent Common Shares issued in exchange therefor pursuant to
the Merger, and appropriate adjustments will be made to the RSPP such that
following the Effective Time such shares of Parent Common Stock shall be held
substantially in accordance with the terms of the RSPP. Notwithstanding the
foregoing, except as provided in the preceding sentence nothing contained
herein shall be construed as requiring Parent or the Surviving Corporation to
continue any specific employee benefit plans or to continue the employment of
any specific person.
 
  SECTION 4.11. Public Announcements. Parent, Acquisition and the Company, as
the case may be, will consult with one another before issuing any press
release or otherwise making any public statements with respect to the
transactions contemplated by this Agreement, including, without limitation,
the Merger, and shall not issue any such press release or make any such public
statement prior to such consultation except as may be required by applicable
law or by obligations pursuant to any listing agreement with the NYSE as
determined by Parent, Acquisition or the Company, as the case may be.
 
  SECTION 4.12. Indemnification. After the Effective Time, the Surviving
Corporation shall indemnify and hold harmless (and shall also advance expenses
as incurred to the fullest extent permitted under applicable law to) each
person who is now or has been prior to the date hereof or who becomes prior to
the Effective Time an officer or director of the Company or any of the
Company's subsidiaries (the "Indemnified Persons") against (i) all losses,
claims, damages, costs, expenses (including, without limitation, counsel fees
and expenses), settlement, payments or liabilities arising out of or in
connection with any claim, demand, action, suit, proceeding or investigation
based in whole or in part on or arising in whole or in part out of the fact
that such person is or was an officer or director of the Company or any of it
subsidiaries, whether or not pertaining to any matter existing or occurring at
or prior to the Effective Time and whether or not asserted or claimed prior to
or at or after the Effective Time ("Indemnified Liabilities") and (ii) all
Indemnified Liabilities based in whole or in part on or arising in whole or in
part out of or pertaining to this Agreement or the transactions contemplated
hereby, in each case to the fullest extent required or permitted under
applicable law. The parties hereto intend, to the extent not prohibited by
applicable law, that the indemnification provided for in this Section 4.12
shall apply without limitation to negligent acts or omissions by an
Indemnified Person. Parent hereby guarantees the payment and performance of
the Surviving Corporation's obligations in this Section 4.12. Each Indemnified
Person is intended to be a third party beneficiary of this Section 4.12 and
may specifically enforce its terms. This Section 4.12 shall not limit or
otherwise adversely affect any rights any Indemnified Person may have under
any agreement with the Company or under the Company's Certificate of
Incorporation or bylaws as presently in effect.
 
  SECTION 4.13. Notification of Certain Matters. The Company shall give prompt
notice to Parent and Acquisition and Parent and Acquisition, shall give prompt
notice to the Company, of (i) the occurrence or nonoccurrence of any event the
occurrence or nonoccurrence of which would be likely to cause any
representation or warranty contained in this Agreement to be untrue or
inaccurate in any material respect at or prior to the Effective Time and (ii)
any material failure of the Company, Parent or Acquisition, as the case may
be, to comply with or satisfy any covenant condition or agreement to be
complied with or satisfied by it hereunder; provided, however, that the
delivery of any notice pursuant to this Section 4.13 shall not cure such
breach or non-compliance or limit or otherwise affect the remedies available
hereunder to the party receiving such notice.
 
  SECTION 4.14. Affiliates; Pooling; Tax-Free Reorganization.
 
  (a) The Company shall use all reasonable efforts to obtain from any Company
Affiliate who has not previously executed such letter agreement and from any
person who may be deemed to have become a Company Affiliate after the date of
this Agreement and on or prior to the Effective Time a letter agreement
substantially in the form of Exhibit A hereto as soon as practicable.
 
  (b) Parent shall not be required to maintain the effectiveness of the S-4
for the purpose of resale of shares of Parent Common Stock by stockholders of
the Company who may be affiliates of the Company or Parent pursuant to Rule
145 under the Securities Act.
 
                                     A-28
<PAGE>
 
  (c) Each party hereto shall use all reasonable efforts to cause the Merger
to be treated for financial accounting purposes as a Pooling Transaction and
shall not take and shall use all reasonable efforts to prevent any affiliate
of such party from taking any actions which could prevent the Merger from
being treated for financial accounting purposes as a Pooling Transaction.
 
  (d) The Company, on the one hand, and Parent and Acquisition, on the other
hand, shall execute and deliver to legal counsel to the Company and Parent
certificates substantially in the form attached hereto as Exhibits B-1 and B-
2, respectively, at such time or times as reasonably requested by such legal
counsel in connection with its delivery of an opinion with respect to the
transactions contemplated hereby and the Company and Parent shall each provide
a copy thereof to the other parties hereto. Prior to the Effective Time, none
of the Company, Parent or Acquisition shall take or cause to be taken any
action which would cause to be untrue (or fail to take or cause not to be
taken any action which would cause to be untrue) any of the representations in
Exhibits B-1 or B-2.
 
  SECTION 4.15. Additions to and Modification of Company Disclosure
Schedule. Concurrently with the execution and delivery of this Agreement, the
Company has delivered a Company Disclosure Schedule that includes all of the
information required by the relevant provisions of this Agreement that is
reasonably available to the senior management of the Company at the time of
such delivery. Any failure of the Company to disclose any information required
by the relevant provisions of this Agreement in any section of the Company
Disclosure Schedule shall not constitute a breach of the applicable
representation or warranty, provided (i) that the information so omitted does
not have or reflect a Material Adverse Effect on the Company and (ii) that the
Company shall deliver to Parent and Acquisition such additions to or
modifications of any sections of the Company Disclosure Schedule necessary to
make the information set forth therein true, accurate and complete not later
than 5 days after the date of execution and delivery of this Agreement.
 
                                   ARTICLE 5
 
                   CONDITIONS TO CONSUMMATION OF THE MERGER
 
  SECTION 5.1. Conditions to Each Party's Obligations to Effect the
Merger. The respective obligations of each party hereto to effect the Merger
are subject to the satisfaction at or prior to the Effective Time of the
following conditions:
 
  (a) this Agreement shall have been approved and adopted by the requisite
vote of the stockholders of the Company;
 
  (b) no statute, rule, regulation, executive order, decree, ruling or
injunction shall have been enacted, entered, promulgated or enforced by any
United States court or United States governmental authority which prohibits,
restrains, enjoins or restricts the consummation of the Merger;
 
  (c) any waiting period applicable to the Merger under the HSR Act shall have
terminated or expired and any other governmental or regulatory notices or
approvals required with respect to the transactions contemplated hereby shall
have been either filed or received; and
 
  (d) the S-4 shall have become effective under the Securities Act and shall
not be the subject of any stop order or proceedings seeking a stop order and
Parent shall have received all state securities laws or "blue sky" permits and
authorizations necessary to issue shares of Parent Common Stock in exchange
for Shares in the Merger.
 
  SECTION 5.2. Conditions to the Obligations of the Company. The obligation of
the Company to effect the Merger is subject to the satisfaction at or prior to
the Effective Time of the following conditions:
 
  (a) the representations of Parent and Acquisition contained in this
Agreement or in any other document delivered pursuant hereto shall be true and
correct (except to the extent that the breach thereof would not have a
Material Adverse Effect on Parent) at and as of the Effective Time with the
same effect as if made at and as of
 
                                     A-29
<PAGE>
 
the Effective Time (except to the extent such representations specifically
related to an earlier date, in which case such representations shall be true
and correct as of such earlier date) and, at the Closing, Parent and
Acquisition shall have delivered to the Company a certificate to that effect;
 
  (b) each of the covenants and obligations of Parent and Acquisition to be
performed at or before the Effective Time pursuant to the terms of this
Agreement shall have been duly performed in all material respects at or before
the Effective Time and, at the Closing, Parent and Acquisition shall have
delivered to the Company a certificate to that effect;
 
  (c) the shares of Parent Common Stock issuable to the Company stockholders
pursuant to this Agreement and such other shares required to be reserved for
issuance in connection with the Merger shall have been authorized for listing
on the NYSE upon official notice of issuance;
 
  (d) the Company shall have received the opinion of tax counsel to the
Company to the effect that (i) the Merger will be treated for Federal income
tax purposes as a reorganization within the meaning of Section 368(a) of the
Code; (ii) each of Parent, Acquisition and the Company will be a party to the
reorganization within the meaning of Section 368(b) of the Code; and (iii) no
gain or loss for Federal income tax purposes will be recognized by a
stockholder of the Company as a result of the Merger with respect to Shares
converted solely into shares of Parent Common Stock, and such opinion shall
not have been withdrawn or modified in any material respect, substantially in
the form of Exhibit C;
 
  (e) the Company shall have received the opinion of legal counsel to Parent
as to the matters set forth in Exhibit F;
 
  (f) Parent shall have obtained the consent or approval of each person whose
consent or approval shall be required in connection with the transactions
contemplated hereby under any loan or credit agreement, note, mortgage,
indenture, lease, or other agreement or instrument, except those for which
failure to obtain such consents and approvals would not, in the reasonable
opinion of the Company, individually or in the aggregate, have a Material
Adverse Effect on Parent; and
 
  (g) there shall have been no events, changes or effects with respect to
Parent or its subsidiaries having or which could reasonably be expected to
have a Material Adverse Effect on Parent.
 
  SECTION 5.3. Conditions to the Obligations of Parent and Acquisition. The
respective obligations of Parent and Acquisition to effect the Merger are
subject to the satisfaction at or prior to the Effective Time of the following
conditions:
 
  (a) the representations of the Company contained in this Agreement or in any
other document delivered pursuant hereto shall be true and correct (except to
the extent that the breach thereof would not have a Material Adverse Effect on
the Company) at and as of the Effective Time with the same effect as if made
at and as of the Effective Time (except to the extent such representations
specifically related to an earlier date, in which case such representations
shall be true and correct as of such earlier date) and, at the Closing, the
Company shall have delivered to Parent and Acquisition a certificate to that
effect;
 
  (b) each of the covenants and obligations of the Company to be performed at
or before the Effective Time pursuant to the terms of this Agreement shall
have been duly performed in all material respects at or before the Effective
Time and, at the Closing, the Company shall have delivered to Parent and
Acquisition a certificate to that effect;
 
  (c) Parent shall have received from each affiliate of the Company referred
to in Sections 2.19 and 4.14(a) an executed copy of the letter attached hereto
as Exhibit A;
 
  (d) the shares of Parent Common Stock issuable to the Company stockholders
pursuant to this Agreement and such other shares required to be reserved for
issuance in connection with the Merger shall have been authorized for listing
on the NYSE upon official notice of issuance;
 
                                     A-30
<PAGE>
 
  (e) Parent shall have received the opinion of tax counsel to Parent to the
effect that (i) the Merger will be treated for Federal income tax purposes as
a reorganization within the meaning of Section 368(a) of the Code and (ii)
each of Parent, Acquisition and the Company will be a party to the
reorganization within the meaning of Section 368(b) of the Code, and such
opinion shall not have been withdrawn or modified in any material respect,
substantially in the form of Exhibit E;
 
  (f) Parent shall have received the opinion of legal counsel to the Company
as to the matters set forth in Exhibit D;
 
  (g) Parent shall have received the opinion of its certified public
accountants stating that the Merger will be accounted for under generally
accepted accounting principles as a Pooling Transaction, and such opinion
shall not have been withdrawn or modified in any material respect;
 
  (h) the Company shall have obtained the consent or approval of each person
whose consent or approval shall be required in order to permit the succession
by the Surviving Corporation pursuant to the Merger to any obligation right or
interest of the Company or any subsidiary of the Company under any loan or
credit agreement, note, mortgage, indenture, lease or other agreement or
instrument, except for those for which failure to obtain such consents and
approvals would not, in the reasonable opinion of Parent, individually or in
the aggregate, have a Material Adverse Effect on the Company; and
 
  (i) there shall have been no events, changes or effects with respect to the
Company or its subsidiaries having or which could reasonably be expected to
have a Material Adverse Effect on the Company.
 
                                   ARTICLE 6
 
                        TERMINATION; AMENDMENT; WAIVER
 
  SECTION 6.1. Termination. This Agreement may be terminated and the Merger
may be abandoned at any time prior to the Effective Time whether before or
after approval and adoption of this Agreement by the Company's stockholders:
 
  (a) by mutual written consent of Parent, Acquisition and the Company;
 
  (b) by Parent and Acquisition or the Company if (i) any court of competent
jurisdiction in the United States or other United States Governmental Entity
shall have issued a final order, decree or ruling or taken any other final
action restraining, enjoining or otherwise prohibiting the Merger and such
order, decree, ruling or other action is or shall have become nonappealable or
(ii) the Merger has not been consummated by September 30, 1997; provided that
no party may terminate this Agreement pursuant to this clause (ii) if such
party's failure to fulfill any of its obligations under this Agreement shall
have been the reason that the Effective Time shall not have occurred on or
before said date;
 
  (c) by the Company if (i) there shall have been a breach of any
representation or warranty on the part of Parent or Acquisition set forth in
this Agreement or if any representation or warranty of Parent or Acquisition
shall have become untrue, and such breach shall not have been cured or such
representation or warranty shall not have been made true within twenty
business days after notice by Company thereof, provided that the Company has
not breached any of its obligations hereunder; (ii) there shall have been a
breach by Parent or Acquisition of any of their respective covenants or
agreements hereunder having a Material Adverse Effect on Parent or materially
adversely affecting (or materially delaying) the consummation of the Merger,
and Parent or Acquisition, as the case may be, has not cured such breach
within twenty business days after notice by the Company thereof, provided that
the Company has not breached any of its obligations hereunder; (iii) the
Company shall have convened a meeting of its shareholders to vote upon the
Merger and shall have failed to obtain the requisite vote of its shareholders
at such meeting (including any adjournments thereof) or (iv) the Company Board
has received a Superior Proposal, has complied with the provisions of Section
4.4(b), and concurrently complies with the provisions of Section 6.3(a); or
 
                                     A-31
<PAGE>
 
  (d) by Parent and Acquisition if (i) there shall have been a breach of any
representation or warranty on the part of the Company set forth in this
Agreement or if any representation or warranty of the Company shall have
become untrue, and such breach shall not have been cured or such
representation or warranty shall not have been made true within twenty
business days after notice by Parent or Acquisition thereof, provided that
neither Parent nor Acquisition has breached any of their respective
obligations hereunder; (ii) there shall have been a breach by the Company of
its covenants or agreements hereunder having a Material Adverse Effect on the
Company or materially adversely affecting (or materially delaying) the
consummation of the Merger, and the Company has not cured such breach within
twenty business days after notice by Parent or Acquisition thereof, provided
that neither Parent nor Acquisition has breached any of their respective
obligations hereunder; (iii) the Company Board shall have recommended to the
Company's stockholders a Superior Proposal; (iv) the Company Board shall have
withdrawn or materially weakened its recommendation of this Agreement or the
Merger, provided that any disclosure that the Company Board is compelled to
make with respect to the receipt of a proposal for a Third Party Acquisition
in order to comply with its fiduciary duties or Rule 14d-9 or 14e-2 shall not
constitute the withdrawal or material weakening of the Company Board's
recommendation, provided, further, that such disclosure states that no action
will be taken by the Company Board with respect to the withdrawal of its
recommendation of the transactions contemplated hereby or the approval or
recommendation of any Third Party Acquisition except in accordance with
Section 4.4(b) or (v) the Company shall have convened a meeting of its
stockholders to vote upon the Merger and shall have failed to obtain the
requisite vote of its stockholders at such meeting (including any adjournments
thereof).
 
  SECTION 6.2. Effect of Termination. In the event of the termination and
abandonment of this Agreement pursuant to Section 6.1, this Agreement shall
forthwith become void and have no effect without any liability on the part of
any party hereto or its affiliates, directors, officers or stockholders other
than the provisions of this Section 6.2 and Sections 4.8(c) and 6.3 hereof.
Nothing contained in this Section 6.2 shall relieve any party from liability
for any breach of this Agreement.
 
  SECTION 6.3. Fees and Expenses.
 
  (a) In the event that this Agreement shall be terminated pursuant to:
 
    (i) Section 6.1(d)(iii) or Section 6.1(c)(iv);
 
    (ii) Sections 6.1(d)(i) or (ii) and within twelve months thereafter the
  Company enters into an agreement with respect to a Third Party Acquisition
  or a Third Party Acquisition occurs involving any party (or any affiliate
  thereof) (x) with whom the Company (or its agents) had negotiations with a
  view to a Third Party Acquisition, (y) to whom the Company (or its agents)
  furnished information with a view to a Third Party Acquisition or (z) who
  had submitted a proposal or expressed an interest in a Third Party
  Acquisition, in the case of each of clauses (x), (y) and (z), after the
  date hereof and prior to such termination;
 
    (iii) Section 6.1(c)(iii) or 6.1(d)(v) and at the time of the Company
  stockholders' meeting at which the Company failed to obtain the requisite
  vote there shall be outstanding an offer by a Third Party to consummate a
  Third Party Acquisition involving the payment of consideration to
  stockholders of the Company with a value in excess of the Merger
  Consideration and within twelve months thereafter the Company enters into
  an agreement with respect to such Third Party Acquisition or such Third
  Party Acquisition occurs; or
 
    (iv) Section 6.1(d)(iv) and the Company Board shall have withdrawn or
  materially weakened its recommendation following the receipt of an offer by
  a Third Party to consummate a Third Party Acquisition involving the payment
  of consideration to stockholders of the Company with a value in excess of
  the Merger Consideration.
 
Parent and Acquisition would suffer direct and substantial damages, which
damages cannot be determined with reasonable certainty. To compensate Parent
and Acquisition for such damages the Company shall pay to Parent the amount of
$22.5 million as liquidated damages immediately upon the occurrence of the
event described in this Section 6.3(a) giving rise to such damages. It is
specifically agreed that the amount to be paid pursuant to this Section 6.3(a)
represents liquidated damages and not a penalty.
 
                                     A-32
<PAGE>
 
  (b) Upon the termination of this Agreement pursuant to Sections 6.1(c)(iii)
or 6.1(d)(i), (ii) or (v) (other than a termination requiring the Company to
pay liquidated damages as contemplated by Section 6.3(a) hereof), in addition
to any other remedies that Parent, Acquisition or their affiliates may have as
a result of such termination, the Company shall reimburse Parent, Acquisition
and their affiliates (not later than ten business days after submission of
statements therefor) for all actual, documented out-of-pocket fees and
expenses not to exceed $3 million actually and reasonably incurred by any of
them or on their behalf in connection with the Merger and the consummation of
all transactions contemplated by this Agreement (including, without
limitation, fees payable to investment bankers counsel to any of the foregoing
and accountants). Notwithstanding the foregoing, if this Agreement is
terminated pursuant to Section 6.1(d)(i) and the sole basis for such
termination is that the representation and warranty contained in the last
sentence of Section 2.8 shall have become untrue as the result of the effect
on the transactions contemplated hereby of an organizational conflict of
interest provision contained in any Government Contract of the Company, the
Company shall not be obligated, by this Section 6.3(b) or otherwise, to
reimburse Parent and Acquisition and their affiliates for any fees or expenses
incurred in connection with the Merger or the consummation of the transactions
contemplated by this Agreement.
 
  (c) Upon the termination of this Agreement pursuant to Sections 6.1(c)(i) or
(ii), in addition to any other remedies that the Company or its affiliates may
have as a result of such termination, Parent shall reimburse the Company and
its affiliates (not later than ten business days after submission of
statements therefor) for all actual, documented out-of-pocket fees and
expenses not to exceed $3 million actually and reasonably incurred by any of
them or on their behalf in connection with the Merger and the consummation of
all transactions contemplated by this Agreement (including, without
limitation, fees payable to investment bankers, counsel to any of the
foregoing and accountants).
 
  (d) Except as specifically provided in this Section 6.3, each party shall
bear its own expenses in connection with this Agreement and the transactions
contemplated hereby.
 
  SECTION 6.4. Amendment. This Agreement may be amended by action taken by the
Company, Parent and Acquisition at any time before or after approval of the
Merger by the stockholders of the Company but after any such approval no
amendment shall be made which requires the approval of such stockholders under
applicable law without such approval. This Agreement (including, subject to
Section 4.15, the Company Disclosure Schedule) may be amended only by an
instrument in writing signed on behalf of the parties hereto.
 
  SECTION 6.5. Extension; Waiver. At any time prior to the Effective Time,
each party hereto may (i) extend the time for the performance of any of the
obligations or other acts of the other party, (ii) waive any inaccuracies in
the representations and warranties of the other party contained herein or in
any document certificate or writing delivered pursuant hereto or (iii) waive
compliance by the other party with any of the agreements or conditions
contained herein. Any agreement on the part of any party hereto to any such
extension or waiver shall be valid only if set forth in an instrument, in
writing, signed on behalf of such party. The failure of any party hereto to
assert any of its rights hereunder shall not constitute a waiver of such
rights.
 
                                   ARTICLE 7
 
                                 MISCELLANEOUS
 
  SECTION 7.1. Nonsurvival of Representations and Warranties. The
representations and warranties made herein shall not survive beyond the
Effective Time or a termination of this Agreement. This Section 7.1 shall not
limit any covenant or agreement of the parties hereto which by its terms
requires performance after the Effective Time.
 
  SECTION 7.2. Entire Agreement; Assignment. This Agreement (including the
Company Disclosure Schedule) (a) constitutes the entire agreement between the
parties hereto with respect to the subject matter hereof and supersedes all
other prior agreements and understandings both written and oral between the
parties with respect to the subject matter hereof and (b) shall not be
assigned by operation of law or otherwise; provided,
 
                                     A-33
<PAGE>
 
however, that Acquisition may assign any or all of its rights and obligations
under this Agreement to any subsidiary of Parent, but no such assignment shall
relieve Acquisition of its obligations hereunder if such assignee does not
perform such obligations.
 
  SECTION 7.3. Validity. If any provision of this Agreement or the application
thereof to any person or circumstance is held invalid or unenforceable, the
remainder of this Agreement and the application of such provision to other
persons or circumstances shall not be affected thereby and to such end the
provisions of this Agreement are agreed to be severable.
 
  SECTION 7.4. Notices. All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be given (and shall be
deemed to have been duly given upon receipt) by delivery in person, by
facsimile or by registered or certified mail (postage prepaid, return receipt
requested) to each other party as follows:
 
  if to Parent or Acquisition:
                         NORTHROP CORPORATION 1840 Century Park East Los
                         Angeles, California 90067 Telecopier: (310) 201-3023
                         Attention: James C. Johnson, Esq.
 
  with a copy to:        Gibson, Dunn & Crutcher LLP 333 South Grand Avenue
                         Los Angeles CA 90071 Telecopier: (213) 229-7520
                         Attention: Andrew E. Bogen, Esq.
 
  if to the Company to:  Logicon, Inc. 3701 Skypark Drive Torrance, California
                         90505 Telecopier: (310) 373-0844 Attention: E.
                         Benjamin Mitchell, Jr., Esq.
 
  with a copy to:        O'Melveny & Myers 610 Newport Center Drive Newport,
                         California 92660 Telecopier: (714) 669-6994
                         Attention: Barton Beek, Esq.
 
or to such other address as the person to whom notice is given may have
previously furnished to the others in writing in the manner set forth above.
 
  SECTION 7.5. Governing Law. This Agreement shall be governed by and
construed in accordance with the laws of the State of Delaware without regard
to the principles of conflicts of law thereof.
 
  SECTION 7.6. Descriptive Headings. The descriptive headings herein are
inserted for convenience of reference only and are not intended to be part of
or to affect the meaning or interpretation of this Agreement.
 
  SECTION 7.7. Parties in Interest. This Agreement shall be binding upon and
inure solely to the benefit of each party hereto and its successors and
permitted assigns and, except as provided in Sections 4.12 and 7.2, nothing in
this Agreement express or implied is intended to or shall confer upon any
other person any rights, benefits or remedies of any nature whatsoever under
or by reason of this Agreement.
 
  SECTION 7.8. Certain Definitions. For the purposes of this Agreement the
term:
 
  (a) "affiliate" means (except as otherwise provided in Sections 2.19 and
4.14) a person that, directly or indirectly, through one or more
intermediaries controls, is controlled by or is under common control with the
first-mentioned person;
 
                                     A-34
<PAGE>
 
  (b) "business day" means any day other than a day on which the NYSE is
closed;
 
  (c) "capital stock" means common stock, preferred stock, partnership
interests, limited liability company interests or other ownership interests
entitling the holder thereof to vote with respect to matters involving the
issuer thereof;
 
  (d) "knowledge" or "known" means, with respect to any matter in question,
the actual knowledge of such matter of any executive officer of the Company or
Parent, as the case may be;
 
  (e) "person" means an individual, corporation, partnership, limited
liability company, association, trust, unincorporated organization or other
legal entity; and
 
  (f) "subsidiary" or "subsidiaries" of the Company, Parent, the Surviving
Corporation or any other person means any corporation, partnership, limited
liability company, association, trust, unincorporated association or other
legal entity of which the Company, Parent, the Surviving Corporation or any
such other person, as the case may be (either alone or through or together
with any other subsidiary), owns, directly or indirectly, 50% or more of the
capital stock the holders of which are generally entitled to vote for the
election of the board of directors or other governing body of such corporation
or other legal entity.
 
  SECTION 7.9. Personal Liability. This Agreement shall not create or be
deemed to create or permit any personal liability or obligation on the part of
any direct or indirect stockholder of the Company or Parent or any officer,
director, employee, agent, representative or investor of any party hereto.
 
  SECTION 7.10. Specific Performance. The parties hereby acknowledge and agree
that the failure of any party to perform its agreements and covenants
hereunder, including its failure to take all actions as are necessary on its
part to the consummation of the Merger, will cause irreparable injury to the
other parties, for which damages, even if available, will not be an adequate
remedy. Accordingly, each party hereby consents to the issuance of injunctive
relief by any court of competent jurisdiction to compel performance of such
party's obligations and to the granting by any court of the remedy of specific
performance of its obligations hereunder; provided, however, that if a party
hereto is entitled to receive any payment or reimbursement of expenses
pursuant to Sections 6.3(a), (b) or (c) it shall not be entitled to specific
performance to compel the consummation of the Merger.
 
  SECTION 7.11. Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed to be an original but all of which
shall constitute one and the same agreement.
 
  IN WITNESS WHEREOF, each of the parties has caused this Agreement to be duly
executed on its behalf as of the day and year first above written.
 
                                          NORTHROP GRUMMAN CORPORATION
 
                                          By: /s/ Albert F. Myers
                                            ___________________________________
                                          Name:  Albert F. Myers
                                          Title: Corporate Vice President and
                                                 Treasurer
 
                                          LOGICON, INC.
 
                                          By: /s/ John R. Woodhull
                                            ___________________________________
                                          Name:  John R. Woodhull
                                          Title: President and Chief Executive
                                                 Officer
 
                                          NG ACQUISITION, INC.
 
                                          By: /s/ Albert F. Myers
                                            ___________________________________
                                          Name:  Albert F. Myers
                                          Title: President
 
                                     A-35
<PAGE>
 
                                  EXHIBIT A-1
 
               FORM OF LETTER AGREEMENT WITH COMPANY AFFILIATES
 
                                                                    May 4, 1997
 
Northrop Grumman Corporation
1840 Century Park East
Los Angeles, California 90067
 
Dear Sirs:
 
  Reference is made to the provisions of the Agreement and Plan of Merger,
dated as of May 4, 1997 (together with any amendments thereto, the "Merger
Agreement"), among Logicon, Inc., a Delaware corporation (the "Company"),
Northrop Grumman Corporation, a Delaware corporation ("Parent"), and NG
Acquisition, Inc., a Delaware corporation and a wholly owned subsidiary of
Parent ("Acquisition"), pursuant to which Acquisition will be merged with and
into the Company, with the Company continuing as the surviving corporation
(the "Merger"). This letter constitutes the undertakings of the undersigned
contemplated by the Merger Agreement.
 
  I understand that I may be deemed to be an "affiliate" of the Company, as
such term is defined for purposes of Rule 145 ("Rule 145") promulgated under
the Securities Act of 1933, as amended (the "Securities Act"), and that the
transferability of the shares of common stock, par value $1.00 per share, of
Parent (including the associated common stock purchase rights, the "Parent
Common Stock") which I will receive upon the consummation of the Merger in
exchange for my shares of common stock, par value $.01 per share, of the
Company (including the associated common stock purchase rights, the "Shares"),
or upon exercise of certain options I hold to purchase Shares, is restricted.
Nothing herein shall be construed as an admission that I am an affiliate.
 
  I hereby represent, warrant and covenant to Parent that:
 
    (a) I will not transfer, sell or otherwise dispose of any of the shares
  of Parent Common Stock except (i) pursuant to an effective registration
  statement under the Securities Act, or (ii) as permitted by, and in
  accordance with, Rule 145, if applicable, or another applicable exemption
  under the Securities Act; and
 
    (b) I will not (i) transfer, sell or otherwise dispose of any Shares
  prior to the Effective Time (as defined in the Merger Agreement) or (ii)
  sell or otherwise reduce my risk (within the meaning of the Securities and
  Exchange Commission's Financial Reporting Release No. L, "Codification of
  Financial Reporting Policies," Section 201.01 [47 F.R. 210281] (May 17,
  1982)) with respect to any shares of Parent Common Stock until after such
  time (the "Delivery Time") as financial results reflecting at least 30 days
  of post-merger combined operations of Parent and the Company have been
  published by Parent, except as permitted by Staff Accounting Bulletin No.
  76 issued by the Securities and Exchange Commission; and
 
    (c) I shall execute and deliver to Gibson, Dunn & Crutcher LLP and
  O'Melveny & Myers, counsel to Parent and the Company, respectively, a
  certificate in such form as and at such time or times as may be reasonably
  requested by such law firms, as the case may be, in connection with such
  law firms' delivery of their tax opinions with respect to the transactions
  contemplated by the Merger Agreement; and
 
    (d) I have not taken and will not take or agree to take any action that
  would prevent the Merger from qualifying, or being accounted for, as a
  pooling-of-interests.
 
  I further understand that, in order to make more effective the provisions of
the foregoing paragraph, Parent may delay delivery to me of certificates in
respect of the shares of Parent Common Stock until the Delivery Time.
 
  I hereby acknowledge that except as otherwise provided in the Merger
Agreement, Parent is under no obligation to register the sale, transfer,
pledge or other disposition of the shares of Parent Common or to take any
other action necessary for the purpose of making an exemption from
registration available.
 
 
                                     A-36
<PAGE>
 
  I understand that Parent will issue stop transfer instructions to its
transfer agents with respect to the shares of Parent Common Stock and that a
restrictive legend will be placed on the certificates delivered to me
evidencing the shares of Parent Common Stock in substantially the following
form:
 
  "This certificate and the shares represented hereby have been issued
  pursuant to a transaction governed by Rule 145 ("Rule 145") promulgated
  under the Securities Act of 1933, as amended (the "Securities Act"), and
  may not be sold or otherwise disposed of unless registered under the
  Securities Act pursuant to a Registration Statement in effect at the time
  or unless the proposed sale or disposition can be made in compliance with
  Rule 145 or without registration in reliance on another exemption
  therefrom. Reference is made to that certain letter agreement dated May 4,
  1997 between the Holder and the Issuer, a copy of which is on file in the
  principal office of the Issuer which contains further restrictions on the
  transferability of this certificate and the shares represented hereby."
 
  Parent agrees to cause this legend to be removed from the certificates
delivered to me evidencing the shares of Parent Common Stock promptly after
the restrictions on transferability of the shares of Parent Common Stock are
no longer applicable and after I surrender such certificates to the transfer
agent with a request for such removal.
 
  The term Parent Common Stock as used in this letter shall mean and include
not only the common stock of Parent as presently constituted, but also any
other stock which may be issued in exchange for, in lieu of, or in addition
to, all or any part of such Parent Common Stock.
 
  I hereby acknowledge that the receipt of this letter by Parent is an
inducement and a condition to Parent's obligation to consummate the Merger
under the Merger Agreement and that I understand the requirements of this
letter and the limitations imposed upon the transfer, sale or other
disposition of the Shares and the shares of Parent Common Stock.
 
                                          Very truly yours,
 
                                          [AFFILIATE]
 
ACKNOWLEDGED AND ACCEPTED:
 
NORTHROP GRUMMAN CORPORATION
 
By: ___________________________________
 
Name: _________________________________
 
Title: ________________________________
 
                                     A-37
<PAGE>
 
                                  EXHIBIT A-2
 
                FORM OF LETTER AGREEMENT WITH PARENT AFFILIATES
 
                                                                    May 4, 1997
 
Northrop Grumman Corporation
1840 Century Park East
Los Angeles, California 90067
 
Dear Sirs:
 
  Reference is made to the provisions of the Agreement and Plan of Merger,
dated as of May 4, 1997 (together with any amendments thereto, the "Merger
Agreement"), among Logicon, Inc., a Delaware corporation (the "Company"),
Northrop Grumman Corporation, a Delaware corporation ("Parent"), and NG
Acquisition, Inc., a Delaware corporation and a wholly owned subsidiary of
Parent ("Acquisition"), pursuant to which Acquisition will be merged with and
into the Company, with the Company continuing as the surviving corporation
(the "Merger"). This letter constitutes the undertakings of the undersigned
contemplated by the Merger Agreement.
 
  I hereby represent, warrant and covenant to Parent that:
 
    (a) I will not sell or otherwise reduce my risk (within the meaning of
  the Securities and Exchange Commission's Financial Reporting Release No. L,
  "Codification of Financial Reporting Policies," Section 201.01 [47 F.R.
  210281] (May 17, 1982)) with respect to any shares of common stock, par
  value $1.00 per share, of Parent ("Parent Common Stock") owned by me until
  after such time (the "Delivery Time") as financial results reflecting at
  least 30 days of post-merger combined operations of Parent and the Company
  have been published by Parent, except as permitted by Staff Accounting
  Bulletin No. 76 issued by the Securities and Exchange Commission; and
 
    (b) I have not taken and will not take or agree to take any action that
  would prevent the Merger from qualifying, or being accounted for, as a
  pooling-of-interests.
 
  I further understand that Parent shall not be bound by any attempted sale of
any Parent Common Stock, and will issue stop transfer instructions to its
transfer agents with respect to the shares of Parent Common Stock.
 
  The term Parent Common Stock as used in this letter shall mean and include
not only the common stock of Parent as presently constituted, but also any
other stock which may be issued in exchange for, in lieu of, or in addition
to, all or any part of such Parent Common Stock.
 
  I hereby acknowledge that the receipt of this letter by Parent is an
inducement and a condition to Parent's obligation to consummate the Merger
under the Merger Agreement and that I understand the requirements of this
letter and the limitations imposed upon the transfer, sale or other
disposition of the shares of Parent Common Stock.
 
                                          Very truly yours,
 
                                          [AFFILIATE]
 
ACKNOWLEDGED AND ACCEPTED:
 
NORTHROP GRUMMAN CORPORATION
 
By: ___________________________________
 
Name: _________________________________
 
Title: ________________________________
 
                                     A-38
<PAGE>
 
                                  EXHIBIT B-1
 
        FORM OF REPRESENTATIONS RELATING TO TAX MATTERS OF THE COMPANY
 
  1. As of the Effective Time, the Company will hold at least ninety percent
(90%) of the fair market value of the net assets and at least seventy percent
(70%) of the fair market value of the gross assets held by it immediately
prior to the Merger. For the purpose of determining the percentage of the
Company's net and gross assets held immediately prior to the Merger, the
following assets will be treated as property immediately prior to the Merger:
(i) assets used by the Company to pay stockholders perfecting dissenters'
rights or other expenses or liabilities incurred in connection with the Merger
and (ii) assets used to make distributions, redemptions or other payments in
respect of stock of the Company (except for regular, normal distributions) or
in respect of rights to acquire such stock (including payments treated as such
for tax purposes) that are made in contemplation of the Merger or that are
related thereto;
 
  2. Other than in the ordinary course of business or pursuant to its
obligations under the Agreement, the Company has not disposed of any of its
assets (including any distribution of assets with respect to, or in redemption
of, stock) since January 1, 1997;
 
  3. The Company's principal reasons for participating in the Merger are bona
fide business purposes unrelated to taxes;
 
  4. In the Merger, Shares representing "Control" of the Company will be
exchanged solely for voting stock of Parent. For purposes of this paragraph,
Shares exchanged in the Merger for cash and other property (including, without
limitation, cash paid to stockholders of the Company perfecting dissenters'
rights or in lieu of fractional shares of Parent Common Stock) will be treated
as outstanding Shares on the date of the Merger but not exchanged for shares
of Parent Common Stock. As used herein, "Control" shall consist of direct
ownership of shares of stock possessing at least eighty percent (80%) of the
total combined voting power of shares of all classes of stock entitled to vote
and at least eighty percent (80%) of the total number of shares of all other
classes of stock of the corporation. For purposes of determining Control, a
person shall not be considered to own shares of voting stock if rights to vote
such shares (or to restrict or otherwise control the voting of such shares)
are held by a third party (including a voting trust) other than an agent of
such person;
 
  5. The Company has no outstanding warrants, options, convertible securities
or any other type of right to acquire capital stock of the Company (or any
other equity interest in the Company) or to vote (or restrict or otherwise
control the vote of) shares of the Company's capital stock which, if
exercised, would affect Parent's acquisition and retention of Control of the
Company;
 
  6. The payment of cash in lieu of fractional shares of Parent Common Stock
is solely for the purpose of avoiding the expense and inconvenience to Parent
of issuing fractional shares and does not represent separately bargained for
consideration. The total cash consideration that will be paid in the Merger to
the Company stockholders in lieu of fractional shares of Parent Common Stock
will not exceed one percent (1%) of the total consideration that will be
issued in the Merger to the Company stockholders in exchange for their Shares;
 
  7. The Company has no plan or intention to issue additional shares of
capital stock after the Merger, or take any other action, that would result in
Parent losing Control of the Company;
 
  8. The Company has no plan or intention to sell or otherwise dispose of any
of its assets or of any of the assets acquired from Acquisition in the Merger
except for dispositions made in the ordinary course of business or payment of
expenses, including payments to stockholders of the Company perfecting
dissenters' rights, incurred by the Company pursuant to the Merger and except
for transfers of its assets or assets of Acquisition to a corporation
controlled by the Company;
 
  9. The fair market value of the Company's assets will, at the Effective Time
of the Merger, exceed the aggregate liabilities of the Company plus the amount
of liabilities, if any, to which such assets are subject;
 
                                     A-39
<PAGE>
 
  10. The fair market value of the shares of Parent Common Stock received by
each stockholder of the Company will be approximately equal to the fair market
value of the Shares surrendered in exchange therefor and the aggregate
consideration received by stockholders of the Company in exchange for their
Shares will be approximately equal to the fair market value of all of the
outstanding Shares immediately prior to the Merger;
 
  11. The Company is not an "investment company" within the meaning of
Sections 368(a)(2)(F)(iii) and (iv) of the Code;
 
  12. The Company is not under the jurisdiction of a court in a Title 11 or
similar case within the meaning of Section 368(a)(3)(A) of the Code;
 
  13. There is no plan or intention ("Plan") on the part of the stockholders
of the Company who own five percent (5%) or more of the Shares, and to the
best knowledge of the management of the Company, there is no Plan on the part
of the remaining stockholders of the Company to engage in a sale, exchange,
transfer, distribution (including, without limitation, a distribution by a
partnership to its partners or by a corporation to its stockholders), pledge,
disposition or any other transaction which results in a reduction in the risk
of ownership or a direct or indirect disposition (a "Sale") of shares of
Parent Common Stock received in the Merger that would reduce ownership by the
Company stockholders of Parent Common Stock to a number of shares having a
value as of the Effective Time of the Merger of less than fifty percent (50%)
of the aggregate fair market value, immediately prior to the Merger, of all
outstanding Shares. For purposes of this paragraph, Shares (i) with respect to
which a stockholder of the Company receives consideration in the Merger other
than shares of Parent Common Stock (including, without limitation, cash
received pursuant to the exercise of dissenters' rights or in lieu of
fractional shares of Parent Common Stock) and/or (ii) with respect to which a
Sale occurs prior to and in contemplation of the Merger, shall be considered
outstanding Shares exchanged for shares of Parent Common Stock in the Merger
and then disposed of pursuant to a Plan;
 
  14. There is no intercorporate indebtedness existing between Parent and the
Company or between Acquisition and the Company that was issued, acquired, or
will be settled at a discount as a result of the Merger;
 
  15. None of the compensation received by any shareholder-employees of the
Company will be separate consideration for, or allocable to, any of Shares
owned by them; none of the shares of Parent Common Stock received by any
shareholder-employees of the Company will be separate consideration for, or
allocable to, any employment agreement or any covenants not to compete; and
the compensation paid to any shareholder-employees of the Company will be for
services actually rendered and will be commensurate with amounts paid to third
parties bargaining at arm's length for similar services;
 
  16. To the best knowledge of the Company, during the past five (5) years,
none of the outstanding shares of its capital stock of, including the right to
acquire or vote any such shares, have directly or indirectly been owned by
Parent;
 
  17. Up to and including the Effective Time, the Company has taken no action
that would cause the merger to fail to qualify as a "reorganization" within
the meaning of Sections (a)(1)(A) and (a)(2)(E) of the Code.
 
                                     A-40
<PAGE>
 
                                  EXHIBIT B-2
 
   FORM OF REPRESENTATIONS RELATING TO TAX MATTERS OF PARENT AND ACQUISITION
 
  1. Pursuant to the Merger, Acquisition will merge with and into the Company,
and the Company will acquire all of the assets and liabilities of Acquisition.
Specifically, the assets transferred to the Company pursuant to the Merger
will represent at least ninety percent (90%) of the fair market value of the
net assets and at least seventy percent (70%) of the fair market value of the
gross assets held by Acquisition immediately prior to the Merger. In addition,
at least ninety percent (90%) of the fair market value of the net assets and
at least seventy percent (70%) of the fair market value of the gross assets
held by the Company immediately prior to the Merger will continue to be held
by the Company immediately after the Merger. For the purpose of determining
the percentage of the Company's and Acquisition's net and gross assets held by
the Company immediately following the Merger, the following assets will be
treated as property held by Acquisition or the Company, as the case may be,
immediately prior but not subsequent to the Merger: (i) assets used by the
Company or Acquisition (other than assets transferred from Parent to
Acquisition for such purpose) to pay stockholders perfecting dissenters'
rights or other expenses or liabilities incurred in connection with the Merger
and (ii) assets used to make distributions, redemptions or other payments in
respect of stock of the Company (except for regular, normal distributions) or
in respect of rights to acquire such stock (including payments treated as such
for tax purposes) that are made in contemplation of the Merger or that are
related thereto;
 
  2. Acquisition was formed solely for the purpose of consummating the
transactions contemplated by the Agreement and at no time will Acquisition
conduct any business activities or other operations, or dispose of any of its
assets, other than pursuant to its obligations under the Agreement;
 
  3. Parent's principal reasons for participating in the Merger are bona fide
business purposes not related to taxes;
 
  4. No shares of Acquisition (or, following the Effective Time, the Company)
have been or will be used as consideration or issued to stockholders of the
Company pursuant to the Merger;
 
  5. Prior to and at the Effective Time, Parent will be in "Control" of
Acquisition. As used herein, "Control" shall consist of direct ownership of
shares of stock possessing at least eighty percent (80%) of the total combined
voting power of all classes of stock entitled to vote and at least eighty
percent (80%) of the total number of shares of all other classes of stock of
the corporation. For purposes of determining Control, a person shall not be
considered to own shares of voting stock if rights to vote such shares (or to
restrict or otherwise control the voting of such shares) are held by a third
party (including a voting trust) other than an agent of such person;
 
  6. In the Merger, Shares representing Control of the Company will be
exchanged solely for shares of voting stock of Parent. For purposes of this
paragraph, Shares exchanged in the Merger for cash and other property
(including, without limitation, cash paid to shareholders of the Company
perfecting dissenters' rights or in lieu of fractional shares of Parent Common
Stock) will be treated as Shares outstanding on the date of the Merger but not
exchanged for shares of voting stock of Parent. Parent has no plan or
intention to cause the Company to issue additional Shares after the Merger, or
take any other action, that would result in Parent losing Control of the
Company;
 
  7. The payment of cash in lieu of fractional shares of Parent Common Stock
is solely for the purpose of avoiding the expense and inconvenience to Parent
of issuing fractional shares and does not represent separately bargained for
consideration. The total cash consideration that will be paid in the Merger to
the Company stockholders in lieu of fractional shares of Parent Common Stock
will not exceed one percent (1%) of the total consideration that will be
issued in the Merger to the Company stockholders in exchange for their Shares;
 
  8. Parent has no plan or intention to reacquire any of its stock issued
pursuant to the Merger;
 
                                     A-41
<PAGE>
 
  9. Parent has no plan or intention to liquidate the Company; to merge the
Company with or into another corporation; to sell, distribute or otherwise
dispose of the stock of the Company, including by means of a spinoff; to spin-
off any other Subsidiary of Parent; or to cause the Company to sell or
otherwise dispose of any of its assets, including by means of a spin-off, or
of any assets acquired from Acquisition, except for dispositions made in the
ordinary course of business or payment of expenses, including payments to
stockholders of the Company perfecting dissenters' rights, incurred by the
Company pursuant to the Merger and except for transfers of stock of the
Company to a corporation controlled by Parent or of assets of the Company or
Acquisition to a corporation controlled by the Company;
 
  10. In the Merger, Acquisition will have no liabilities assumed by the
Company and will not transfer to the Company any assets subject to
liabilities, except to the extent incurred in connection with the transactions
contemplated by the Agreement;
 
  11. During the past five (5) years, none of the outstanding shares of
Company capital stock, including the right to acquire or vote any such shares,
have directly or indirectly been owned by Parent;
 
  12. Neither Parent nor Acquisition is an "investment company" within the
meaning of Sections 368(a)(2)(F)(iii) and (iv) of the Code;
 
  13. Neither Parent nor Acquisition is under the jurisdiction of a court in a
Title 11 or similar case within the meaning of Section 368(a)(3)(A) of the
Code;
 
  14. The liabilities of Acquisition assumed by the Company and the
liabilities to which the transferred assets of Acquisition are subject were
incurred by Acquisition in the ordinary course of its business;
 
  15. The fair market value of the Parent Common Stock received by each
stockholder of the Company will be approximately equal to the fair market
value of the Shares surrendered in exchange therefor, and the aggregate
consideration received by stockholders of the Company in exchange for their
Shares will be approximately equal to the fair market value of all of the
outstanding Shares immediately prior to the Merger;
 
  16. Acquisition, Parent, the Company and the stockholders of the Company
will each pay separately its or their own expenses relating to the Merger;
 
  17. There is no intercorporate indebtedness existing between Parent and the
Company or between Acquisition and the Company that was issued, acquired or
will be settled at a discount as a result of the Merger;
 
  18. Any amounts paid with respect to dissenting Shares of the Company will
be paid by the Company solely from the Company's pre-Merger assets and without
reimbursement therefor by Parent or Acquisition;
 
  19. Other than as specifically provided in this Agreement, Parent will not
reimburse any stockholder of the Company for the Company's capital stock such
stockholder may have purchased or for other obligations such stockholder may
have incurred;
 
  20. Parent and Acquisition shall (and, following the Effective Time, Parent
shall cause the Company to) take no action with respect to the capital stock,
assets or liabilities of the Company that would cause the Merger to fail to
qualify as a "reorganization" within the meaning of Sections 368(a)(1)(A) and
(a)(2)(E) of the Code. Without limitation on the foregoing, following the
Effective Time, Parent shall cause the Company to either continue the historic
business of the Company or use a significant portion the Company's historic
business assets in a business.
 
                                     A-42
<PAGE>
 
                                   EXHIBIT C
 
        MATTERS TO BE COVERED BY OPINION OF TAX COUNSEL TO THE COMPANY
 
  (i) The Merger will constitute a reorganization within the meaning of
section 368(a) of the Code, and Parent, the Company and Acquisition will each
be a party to the reorganization within the meaning of section 368(b) of the
Code;
 
  (ii) No gain or loss will be recognized by the holders of Shares upon the
receipt of shares of Parent Common Stock in exchange for such Shares, except
that a stockholder who receives cash in lieu of a fractional share interest in
Parent Common Stock will recognize gain or loss equal to the difference
between such cash and the basis allocated to the fractional share interest;
 
  (iii) The basis of the shares of Parent Common Stock received by a holder of
Shares (including any fractional share interest treated as received) will be
the same as the basis of the shares of Shares exchanged therefor; and
 
  (iv) The holding period of the shares of Parent Common Stock received by a
holder of Company Shares (including any fractional share interest treated as
received) will include the holding period of the shares of Shares exchanged
therefor, provided the Shares were held as a capital asset at the Effective
Time.
 
                                     A-43
<PAGE>
 
                                   EXHIBIT D
 
       MATTERS TO BE COVERED BY OPINION OF LEGAL COUNSEL TO THE COMPANY
 
  (i) The execution and delivery of the Agreement by the Company and the
consummation of the transactions contemplated thereby have been duly and
validly authorized by the Company Board and the holders of a majority of the
outstanding Shares and no other corporate proceedings on the part of the
Company are necessary to authorize the Agreement or to consummate the
transactions contemplated thereby;
 
  (ii) The Company has all requisite corporate power and authority to execute
and deliver the Agreement and to consummate the transactions contemplated
thereby;
 
  (iii) The Agreement has been duly and validly executed and delivered by the
Company and constitutes a valid and binding agreement of the Company,
enforceable against the Company in accordance with its terms;
 
  (iv) Neither the execution, delivery and performance of the Agreement by the
Company nor the consummation by the Company of the transactions contemplated
thereby will (a) conflict with or result in any breach of any provision of the
respective Certificate of Incorporation or bylaws (or similar governing
documents) of the Company or any of its subsidiaries, (b) result in a
violation or breach of or constitute (with or without due notice or lapse of
time or both) a default (or give rise to any right of termination, amendment,
cancellation or acceleration or Lien) under any of the terms, conditions or
provisions of any note, bond, mortgage, indenture, lease, license, contract,
agreement or other instrument or obligation to which the Company or any of its
subsidiaries is a party or by which any of them or any of their respective
properties or assets may be bound, except for such matters as would not have a
Material Adverse Effect on the Company or (c) violate any order, writ,
injunction, decree, law, statute, rule or regulation applicable to the Company
or any of its subsidiaries or any of their respective properties or assets;
 
  (v) No filing with or notice to and no permit, authorization, consent or
approval of any Governmental Entity is necessary for the execution and
delivery by the Company of this Agreement or the consummation by the Company
of the transactions contemplated hereby, except (a) for such filings,
notifications, permits, authorizations, consent or approvals as have already
been made, given or obtained, (b) for filing of the Merger Certificate in
accordance with the DGCL and (c) where the failure to obtain such permits,
authorizations, consents or approvals or to make such filings or give such
notice would not have a Material Adverse Effect on the Company.
 
                                     A-44
<PAGE>
 
                                   EXHIBIT E
 
           MATTERS TO BE COVERED BY OPINION OF TAX COUNSEL TO PARENT
 
  (i) The Merger will constitute a reorganization within the meaning of
section 368(a) of the Code, and Parent, the Company and Acquisition will each
be a party to the reorganization within the meaning of section 368(b) of the
Code;
 
  (ii) No gain or loss will be recognized by Acquisition upon the transfer of
its assets to the Company pursuant to the Merger;
 
  (iii) No gain or loss will be recognized by Parent upon the issuance of
Parent Common Stock pursuant to the Merger.
 
                                     A-45
<PAGE>
 
                                   EXHIBIT F
 
       MATTERS TO BE COVERED BY LEGAL COUNSEL TO PARENT AND ACQUISITION
 
  (i) The execution and delivery of the Agreement by each of Parent and
Acquisition and the consummation of the transactions contemplated thereby have
been duly and validly authorized by the boards of directors of Parent and
Acquisition and by Parent as the sole stockholder of Acquisition and no other
corporate proceedings on the part of Parent or Acquisition are necessary to
authorize the Agreement or to consummate the transactions contemplated
thereby;
 
  (ii) Each of Parent and Acquisition has all requisite corporate power and
authority to execute and deliver the Agreement and to consummate the
transactions contemplated thereby;
 
  (iii) The Agreement has been duly and validly executed and delivered by each
of Parent and Acquisition and constitutes a valid and binding agreement of
Parent and Acquisition, enforceable against each of Parent and Acquisition in
accordance with its terms;
 
  (iv) Neither the execution, delivery and performance of the Agreement by
Parent and Acquisition nor the consummation by Parent and Acquisition of the
transactions contemplated thereby will (a) conflict with or result in any
breach of any provision of the respective Certificate of Incorporation or
bylaws (or similar governing documents) of Parent or Acquisition or any of
Parent's other subsidiaries, (b) result in a violation or breach of or
constitute (with or without due notice or lapse of time or both) a default (or
give rise to any right of termination, amendment, cancellation or acceleration
or Lien) under any of the terms, conditions or provisions of any note, bond,
mortgage, indenture, lease, license, contract, agreement or other instrument
or obligation to which Parent or Acquisition or any of Parent's other
subsidiaries is a party or by which any of them or any of their respective
properties or assets may be bound, except for such matters as would not have a
Material Adverse Effect or (c) violate any order, writ, injunction, decree,
law, statute, rule or regulation applicable to Parent or Acquisition or any of
Parent's other subsidiaries or any of their respective properties or assets;
 
  (v) No filing with or notice to and no permit, authorization, consent or
approval of any Governmental Entity is necessary for the execution and
delivery by Parent and Acquisition of this Agreement or the consummation by
Parent and Acquisition of the transactions contemplated hereby, except (a) for
such filings, notifications, permits, authorizations, consent or approvals as
have already been made, given or obtained, (b) for filing of the Merger
Certificate in accordance with the DGCL and (c) where the failure to obtain
such permits, authorizations, consents or approvals or to make such filings or
give such notice would not have a Material Adverse Effect on Parent.
 
                                     A-46
<PAGE>
 
                                                                        ANNEX B
 
                        OPINION OF GOLDMAN, SACHS & CO.
 
PERSONAL AND CONFIDENTIAL
 
May 4, 1997
 
Board of Directors
Logicon, Inc.
3701 Skypark Drive
Torrance, CA 90505-4974
 
Gentlemen:
 
  You have requested our opinion as to the fairness to the holders of the
outstanding shares of Common Stock, par value $0.10 per share (the "Shares"),
of Logicon, Inc. (the "Company") of the number of fully paid and non-
assessable shares of Common Stock of Northrop Grumman Corporation ("Northrop
Grumman"), par value $1.00 per share (the "Northrop Grumman Shares"), equal to
the Exchange Ratio (as defined below) to be received for each Share (the
"Merger Consideration") pursuant to the Agreement and Plan of Merger dated as
of May 4, 1997 among Northrop Grumman, NG Acquisition, Inc., a wholly-owned
subsidiary of Northrop Grumman, and the Company (the "Agreement").
 
  The "Exchange Ratio" shall be a fraction, the numerator of which is 52 and
the denominator of which is the average closing price for the Northrop Grumman
Shares as reported on the New York Stock Exchange (the "NYSE") Composite
Transactions reporting system on the 30 business days prior to the effective
date of the Registration Statement on Form S-4; provided, however, that the
Exchange Ratio shall not be greater than 0.6919 nor less than 0.5661.
 
  Goldman, Sachs & Co., as part of its investment banking business, is
continually engaged in the valuation of businesses and their securities in
connection with mergers and acquisitions, negotiated underwritings,
competitive biddings, secondary distributions of listed and unlisted
securities, private placements and valuations for estate, corporate and other
purposes. We are familiar with the Company having acted as its financial
advisor in connection with, and having participated in certain of the
negotiations leading to, the Agreement. In the course of the trading
activities of Goldman, Sachs & Co. we may from time to time hold positions in
the securities of Northrop Grumman or the Company. As of the close of business
on May 2, 1997, Goldman, Sachs & Co. held a long position of 5,027 Northrop
Grumman Shares.
 
  In connection with this opinion, we have reviewed, among other things, the
Agreement; Annual Reports to Stockholders and Annual Reports on Form 10-K of
the Company for the five fiscal years ended March 31, 1996; Annual Reports to
Stockholders and Annual Reports on Form 10-K of Northrop Grumman for the five
years ended December 31, 1996; certain interim reports to stockholders and
Quarterly Reports on Form 10-Q of the Company and Northrop Grumman; certain
other communications from the Company and Northrop Grumman to their respective
stockholders; and certain internal financial analyses and forecasts for the
Company prepared by its management. We also have held discussions with members
of the senior management of the Company and Northrop Grumman regarding the
past and current business operations, financial condition and future prospects
of their respective companies. In addition, we have reviewed the reported
price and trading activity for the Shares and the Northrop Grumman Shares,
compared certain financial and stock market information for the Company and
Northrop Grumman with similar information for certain other companies the
securities of which are publicly traded, reviewed the financial terms of
certain recent business combinations in the aerospace and defense industry
specifically and in other industries generally and performed such other
studies and analyses as we considered appropriate.
 
                                      B-1
<PAGE>
 
Logicon, Inc.
May 4, 1997
Page Two
 
  We have relied without independent verification upon the accuracy and
completeness of all of the financial and other information reviewed by us for
purposes of this opinion. In addition, we have not made an independent
evaluation or appraisal of the assets and liabilities of the Company or
Northrop Grumman or any of their subsidiaries and we have not been furnished
with any such evaluation or appraisal. Our advisory services and the opinion
expressed herein are provided for the information and assistance of the Board
of Directors of the Company in connection with its consideration of the
transaction contemplated by the Agreement.
 
  Based upon the foregoing and such other matters as we consider relevant, it
is our opinion that as of the date hereof the Merger Consideration pursuant to
the Agreement is fair to the holders of the Shares.
 
Very truly yours,
 
GOLDMAN, SACHS & CO.
 
                                      B-2
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  The Delaware General Corporation Law (the "DGCL") authorizes corporations to
limit or eliminate the personal liability of directors to the corporation and
its stockholders for monetary damages in connection with the breach of a
director's fiduciary duty of care. The duty of care requires that, when acting
on behalf of the corporation, directors must exercise an informed business
judgment based on all material information reasonably available to them.
Absent the limitation authorized by the DGCL, directors could be accountable
to corporations and their stockholders for monetary damages for conduct that
does not satisfy such duty of care. Although the DGCL does not change a
director's duty of care, it enables corporations to limit available relief to
equitable remedies such as injunction or rescission. The Registrant's
certificate of incorporation limits the liability of directors to the
Registrant or its stockholders to the fullest extent permitted by the DGCL as
in effect from time to time. Specifically, directors of the Registrant will
not be personally liable for monetary damages for breach of a fiduciary duty
as a director, except for liability (i) for any breach of the director's duty
of loyalty to the Registrant or to its stockholders, (ii) for acts or
omissions not in good faith or which involve intentional misconduct or a
knowing violation of law, (iii) under Section 174 of the DGCL or (iv) for any
transaction from which the director derives any improper personal benefit.
 
  The bylaws of the Registrant provide that the Registrant shall indemnify its
officers, directors and employees to the fullest extent permitted by the DGCL.
The Registrant believes that indemnification under its bylaws covers at least
negligence and gross negligence on the part of the indemnified parties.
 
  The Registrant has entered into an agreement with each of its directors and
certain of its officers indemnifying them to the fullest extent permitted by
the foregoing. The Company has also purchased director and officer liability
insurance.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
  (a) Exhibits.
 
<TABLE>
<CAPTION>

 EXHIBIT
 NUMBER                          DESCRIPTION OF EXHIBIT
 -------                         ----------------------
 <C>     <S>
   2.1   Agreement and Plan of Merger, dated as of May 4, 1997, among Northrop
          Grumman Corporation, Logicon, Inc. and NG Acquisition, Inc. (included
          on pages A-1 through A-46 of this Registration Statement)
   3.1   Restated Certificate of Incorporation(1)
   3.2   Northrop Grumman Corporation Bylaws, amended and restated as of
         January 27, 1997(2)
   4.1   Common Stock Purchase Rights Agreement, amended on August 2, 1991, and
          amended on September 28, 1994(3)
   4.2   Indenture Agreement dated as of October 15, 1994(4)
   4.3   Form of Officer's Certificate (without exhibits) establishing the
          terms of Northrop Grumman Corporation's 7% Notes Due 2006, 7 3/4%
          Debentures Due 2016 and 7 7/8% Debentures Due 2026(5)
   4.4   Form of Northrop Grumman Corporation's 7% Notes Due 2006(5)
   4.5   Form of Northrop Grumman Corporation's 7 3/4% Debentures Due 2016(5)
   4.6   Form of Northrop Grumman Corporation's 7 7/8% Debentures Due 2026(5)
   5.1   Opinion of Gibson, Dunn & Crutcher LLP
   8.1   Opinion of O'Melveny & Myers LLP
</TABLE>
 
                                     II-1
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                          DESCRIPTION OF EXHIBIT
 -------                         ----------------------
<S>      <C> 
  10.1   Second Amended and Restated Credit Agreement dated as of April 15,
          1994, Amended and Restated as of March 1, 1996 among Northrop Grumman
          Corporation, Bank of American National Trust and Savings Association,
          as Documentation Agent, Chemical Securities, Inc., as Syndication
          Agent, The Chase Manhattan Bank (National Association), as
          Administrative Agent, and the Banks Signatories thereto, and amended
          as of November 1, 1996(6)

  10.2   Uncommitted Credit Facility dated October 10, 1994, between Northrop
          Grumman Corporation and Wachovia Bank of Georgia, N.A., which is
          substantially identical to facilities between Northrop Grumman
          Corporation and certain banks some of which are parties to the Credit
          Agreement filed as Exhibit 10(a) thereto(7)

  10.3   1973 Incentive Compensation Plan(8)

  10.4   1973 Performance Achievement Plan(8)

  10.5   Northrop Supplemental Plan 2(7)

  10.6   Northrop Grumman Corporation ERISA Supplemental Plan 1(9)

  10.7   Retirement Plan for Independent Outside Directors, amended September
         21, 1994(10)

  10.8   1987 Long-Term Incentive Plan, as amended(11)

  10.9   Executive Life Insurance Policy(7)

  10.10  Executive Accidental Death, Dismemberment and Plegia Insurance
         Policy(7)

  10.11  Executive Long-Term Disability Insurance(7)

  10.12  Key Executive Medical Plan Benefit Matrix(7)

  10.13  Executive Dental Insurance Policy Group Numbers 5134 and 5135(7)

  10.14  Group Excess Liability Policy(7)

  10.15  Northrop Grumman 1993 Long-Term Incentive Stock Plan, as amended, and
          amended on December 18, 1996(12)

  10.16  Northrop Corporation 1993 Stock Plan for Non-Employee Directors,
          amended as of September 21, 1994(13)

  10.17  Northrop Grumman Corporation 1995 Stock Option Plan for Non-Employee
         Directors(14)

  10.18  Form of Northrop Grumman Corporation Special Agreement(2)

  10.19  Executive Deferred Compensation Plan (effective December 29, 1994)(7)

  10.20  Memorandum of Agreement dated December 16, 1996 (W. C. Solberg
          Retirement Arrangements)
          and Release Agreement between Northrop Grumman Corporation and W. C.
          Solberg(2)

  23.1   Consent of Deloitte & Touche LLP

  23.2   Consent of Price Waterhouse LLP

  23.3   Consent of Gibson, Dunn & Crutcher LLP (included in Exhibit 5.1)

  23.4   Consent of Goldman, Sachs & Co.

  23.5   Consent of O'Melveny & Myers LLP (included in Exhibit 8.1)

  24.1   Power of Attorney (included on pages II-4 and II-5 of this
         Registration Statement)

  99.1   Form of Logicon, Inc. proxy card
</TABLE>
- --------
 (1) Incorporated by reference to Northrop's registration statement on Form S-
     3 filed August 18, 1994
 
 (2) Incorporated by reference to Northrop's annual report on Form 10-K filed
     February 25, 1997
 
 (3) Incorporated by reference to Northrop's registration statement on Form 8-
     A filed September 22, 1988; first amendment incorporated by reference to
     Northrop's registration statement on Form 8 filed August 2, 1991; second
     amendment incorporated by reference to Northrop's registration statement
     on Form 8/A-A filed October 7, 1994
 
 (4) Incorporated by reference to Northrop's current report on Form 8-K filed
     October 25, 1994
 
                                     II-2
<PAGE>
 
 (5) Incorporated by reference to Northrop's registration statement on Form S-
     4 filed April 19, 1996
 
 (6) Incorporated by reference to Northrop's current report on Form 8-K filed
     March 18, 1996
 
 (7) Incorporated by reference to Northrop's annual report on Form 10-K filed
     February 22, 1996
 
 (8) Incorporated by reference to Northrop's registration statement on Form 8-
     B filed June 21, 1985
 
 (9) Incorporated by reference to Northrop's annual report on Form 10-K filed
     February 28, 1994
 
(10) Incorporated by reference to Northrop's Form SE filed March 29, 1991;
     amendment incorporated by reference to Northrop's annual report on Form
     10-K filed March 21, 1995
 
(11) Incorporated by reference to Northrop's Form SE filed March 30, 1989
 
(12) Incorporated by reference to Northrop's Proxy Statement filed March 30,
     1995 for its 1995 Annual Meeting of Stockholders; first amendment
     incorporated by reference to Northrop's Proxy Statement filed April 1,
     1996 for its 1996 Annual Meeting of Stockholders; second amendment
     incorporated by reference to Northrop's annual report on Form 10-K filed
     February 25, 1997
 
(13) Incorporated by reference to Northrop's Proxy Statement filed March 30,
     1993 for its 1993 Annual Meeting of Stockholders; amendment incorporated
     by reference to Northrop's annual report on Form 10-K filed March 21,
     1995
 
(14) Incorporated by reference to Northrop's 1995 Proxy Statement filed March
     30, 1995 for its 1995 Annual Meeting of Stockholders
 
ITEM 22. UNDERTAKINGS.
 
  (a) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
  (b) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the Registrant pursuant to the foregoing provisions described in Item 20, or
otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public
policy as expressed in the Act and is, therefore, unenforceable. In the event
that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer
or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or
controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication
of such issue.
 
  (c) The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Item 4, 10(b), 11, or 13 of this form, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This includes information contained in documents
filed subsequent to the effective date of the registration statement through
the date of responding to the request.
 
  (d) The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the registration statement when it became effective.
 
                                     II-3
<PAGE>
 
                                  SIGNATURES
 
  Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-4 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Los Angeles, State of California, on June 6, 1997.
 
                                          Northrop Grumman Corporation
 
                                                      
                                          By     /s/ Kent Kresa
                                             ---------------------------------
                                                Kent Kresa Chairman, President
                                                and Chief Executive Officer
 
                               POWER OF ATTORNEY
 
  KNOW ALL MEN BY THESE PRESENTS, that each person whose signature to this
Registration Statement appears below hereby constitutes and appoints Richard
R. Molleur and James C. Johnson, and each or either of them, his true and
lawful attorney-in-fact and agent, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all
capacities, to sign any and all amendments (including post-effective
amendments) to this Registration Statement, and to file the same, with all
exhibits thereto and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, as fully to all
intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents or his substitute or
their substitutes, may lawfully do or cause to be done by virtue hereof.
 
  Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in their
capacities and on the dates indicated.
 
 
              SIGNATURE                        TITLE                 DATE
 
           /s/ Kent Kresa              Chairman, President       June 6, 1997
- -------------------------------------   and Chief Executive
              Kent Kresa                Officer (Principal
                                        Executive Officer)
 

      /s/ Richard B. Waugh, Jr.        Corporate Vice            June 6, 1997
- -------------------------------------   President and Chief
         Richard B. Waugh, Jr.          Financial Officer
                                        (Principal
                                        Financial Officer)

 
         /s/ Nelson F. Gibbs           Corporate Vice            June 6, 1997
- -------------------------------------   President and
            Nelson F. Gibbs             Controller

 
        /s/ Jack R. Borsting           Director                  June 6, 1997
- -------------------------------------
           Jack R. Borsting
 
                                     II-4
<PAGE>
 
<TABLE> 
<CAPTION> 
              SIGNATURE                         TITLE                DATE
 <S>                                   <C>                       <C> 

       /s/ John T. Chain, Jr.           Director                 June 6, 1997
- -------------------------------------
           John T. Chain, Jr.

 

          /s/ Jack Edwards              Director                 June 6, 1997
- -------------------------------------
              Jack Edwards
 


          /s/ Phillip Frost             Director                 June 6, 1997
- -------------------------------------
              Phillip Frost
 


         /s/ Robert A. Lutz             Director                 June 6, 1997
- -------------------------------------
             Robert A. Lutz
 


        /s/ Aulana L. Peters            Director                 June 6, 1997
- -------------------------------------
            Aulana L. Peters

 

         /s/ John E. Robson             Director                 June 6, 1997
- -------------------------------------
             John E. Robson
 


      /s/ Richard M. Rosenberg          Director                 June 6, 1997
- -------------------------------------
          Richard M. Rosenberg
 


      /s/ John Brooks Slaughter         Director                 June 6, 1997
- -------------------------------------
          John Brooks Slaughter
 


      /s/ Richard J. Stegemeier         Director                 June 6, 1997
- -------------------------------------
          Richard J. Stegemeier
 
</TABLE> 
                                      II-5
<PAGE>
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
 EXHIBIT                                                            SEQUENTIAL
 NUMBER                   DESCRIPTION OF EXHIBIT                    PAGE NUMBER
 -------                  ----------------------                    -----------
 <C>     <S>                                                        <C>
   2.1   Agreement and Plan of Merger, dated as of May 4, 1997,
          among Northrop Grumman Corporation, Logicon, Inc. and
          NG Acquisition, Inc. (included on pages A-1 through A-
          46 of this Registration Statement)
   3.1   Restated Certificate of Incorporation(1)
   3.2   Northrop Grumman Corporation Bylaws, amended and
          restated as of January 27, 1997(2)
   4.1   Common Stock Purchase Rights Agreement, amended on
          August 2, 1991, and amended on September 28, 1994(3)
   4.2   Indenture Agreement dated as of October 15, 1994(4)
   4.3   Form of Officer's Certificate (without exhibits)
          establishing the terms of Northrop Grumman
          Corporation's 7% Notes Due 2006, 7 3/4% Debentures Due
          2016 and 7 7/8% Debentures Due 2026(5)
   4.4   Form of Northrop Grumman Corporation's 7% Notes Due
         2006(5)
   4.5   Form of Northrop Grumman Corporation's 7 3/4% Debentures
         Due 2016(5)
   4.6   Form of Northrop Grumman Corporation's 7 7/8% Debentures
         Due 2026(5)
   5.1   Opinion of Gibson, Dunn & Crutcher LLP
   8.1   Opinion of O'Melveny & Myers LLP
  10.1   Second Amended and Restated Credit Agreement dated as of
          April 15, 1994, Amended and Restated as of March 1,
          1996 among Northrop Grumman Corporation, Bank of
          American National Trust and Savings Association, as
          Documentation Agent, Chemical Securities, Inc., as
          Syndication Agent, The Chase Manhattan Bank (National
          Association), as Administrative Agent, and the Banks
          Signatories thereto, and amended as of November 1,
          1996(6)
  10.2   Uncommitted Credit Facility dated October 10, 1994,
          between Northrop Grumman Corporation and Wachovia Bank
          of Georgia, N.A., which is substantially identical to
          facilities between Northrop Grumman Corporation and
          certain banks some of which are parties to the Credit
          Agreement filed as Exhibit 10(a) thereto(7)
  10.3   1973 Incentive Compensation Plan(8)
  10.4   1973 Performance Achievement Plan(8)
  10.5   Northrop Supplemental Plan 2(7)
  10.6   Northrop Grumman Corporation ERISA Supplemental Plan
         1(9)
  10.7   Retirement Plan for Independent Outside Directors,
         amended September 21, 1994(10)
  10.8   1987 Long-Term Incentive Plan, as amended(11)
  10.9   Executive Life Insurance Policy(7)
  10.10  Executive Accidental Death, Dismemberment and Plegia
         Insurance Policy(7)
  10.11  Executive Long-Term Disability Insurance(7)
  10.12  Key Executive Medical Plan Benefit Matrix(7)
  10.13  Executive Dental Insurance Policy Group Numbers 5134 and
         5135(7)
  10.14  Group Excess Liability Policy(7)
  10.15  Northrop Grumman 1993 Long-Term Incentive Stock Plan, as
          amended, and amended on December 18, 1996(12)
  10.16  Northrop Corporation 1993 Stock Plan for Non-Employee
          Directors, amended as of September 21, 1994(13)
</TABLE>
 
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT                                                            SEQUENTIAL
 NUMBER                   DESCRIPTION OF EXHIBIT                    PAGE NUMBER
 -------                  ----------------------                    -----------
<S>     <C>                                                         <C> 
  10.17  Northrop Grumman Corporation 1995 Stock Option Plan for
          Non-Employee Directors(14)
  10.18  Form of Northrop Grumman Corporation Special
         Agreement(2)
  10.19  Executive Deferred Compensation Plan (effective December
         29, 1994)(7)
  10.20  Memorandum of Agreement dated December 16, 1996 (W. C.
          Solberg Retirement Arrangements) and Release Agreement
          between Northrop Grumman Corporation and W. C.
          Solberg(2)
  23.1   Consent of Deloitte & Touche LLP
  23.2   Consent of Price Waterhouse LLP
  23.3   Consent of Gibson, Dunn & Crutcher LLP (included in
         Exhibit 5.1)
  23.4   Consent of Goldman, Sachs & Co.
  23.5   Consent of O'Melveny & Myers LLP (included in Exhibit
         8.1)
  24.1   Power of Attorney (included on pages II-4 and II-5 of
         this Registration Statement)
  99.1   Form of Logicon, Inc. proxy card
</TABLE>

- --------
 (1) Incorporated by reference to Northrop's registration statement on Form S-
     3 filed August 18, 1994
 
 (2) Incorporated by reference to Northrop's annual report on Form 10-K filed
     February 25, 1997
 
 (3) Incorporated by reference to Northrop's registration statement on Form 8-
     A filed September 22, 1988; first amendment incorporated by reference to
     Northrop's registration statement on Form 8 filed August 2, 1991; second
     amendment incorporated by reference to Northrop's registration statement
     on Form 8/A-A filed October 7, 1994
 
 (4) Incorporated by reference to Northrop's current report on Form 8-K filed
     October 25, 1994
 
 (5) Incorporated by reference to Northrop's registration statement on Form S-
     4 filed April 19, 1996
 
 (6) Incorporated by reference to Northrop's current report on Form 8-K filed
     March 18, 1996
 
 (7) Incorporated by reference to Northrop's annual report on Form 10-K filed
     February 22, 1996
 
 (8) Incorporated by reference to Northrop's registration statement on Form 8-
     B filed June 21, 1985
 
 (9) Incorporated by reference to Northrop's annual report on Form 10-K filed
     February 28, 1994
 
(10) Incorporated by reference to Northrop's Form SE filed March 29, 1991;
     amendment incorporated by reference to Northrop's annual report on Form
     10-K filed March 21, 1995
 
(11) Incorporated by reference to Northrop's Form SE filed March 30, 1989
 
(12) Incorporated by reference to Northrop's Proxy Statement filed March 30,
     1995 for its 1995 Annual Meeting of Stockholders; first amendment
     incorporated by reference to Northrop's Proxy Statement filed April 1,
     1996 for its 1996 Annual Meeting of Stockholders; second amendment
     incorporated by reference to Northrop's annual report on Form 10-K filed
     February 25, 1997
 
(13) Incorporated by reference to Northrop's Proxy Statement filed March 30,
     1993 for its 1993 Annual Meeting of Stockholders; amendment incorporated
     by reference to Northrop's annual report on Form 10-K filed March 21,
     1995
 
(14) Incorporated by reference to Northrop's 1995 Proxy Statement filed March
     30, 1995 for its 1995 Annual Meeting of Stockholders
 

<PAGE>
 
                                                                    EXHIBIT 5.1
 
                                 June 6, 1997
 
(213) 229-7000                                                    C 66093-00081
 
Northrop Grumman Corporation
1840 Century Park East
Los Angeles, California 90067
 
  Re: Registration Statement on Form S-4
 
Ladies and Gentlemen:
 
  We have acted as counsel to Northrop Grumman Corporation, a Delaware
corporation ("Northrop"), in connection with the preparation of the
Registration Statement (the "Registration Statement") on Form S-4 to be filed
with the Securities and Exchange Commission with respect to the registration
under the Securities Act of 1933, as amended, of up to [9,679,381] shares of
common stock, par value $1.00 per share, of Northrop (including the associated
common stock purchase rights, the "Shares") to be issued to the stockholders
of Logicon, Inc., a Delaware corporation ("Logicon"), in connection with the
merger of Northrop's wholly owned subsidiary, NG Acquisition, Inc., a Delaware
corporation ("Acquisition"), into and with Logicon, all as set forth in the
Agreement and Plan of Merger dated as of May 4, 1997 among Northrop, Logicon
and Acquisition (the "Merger Agreement").
 
  We have examined copies of (i) the Registration Statement; (ii) the
Certificate of Incorporation and By-laws of Northrop, each as amended to date;
(iii) a certified copy of certain resolutions of the Board of Directors of
Northrop relating to the issuance of the Shares pursuant to the terms of the
Merger Agreement; and (iv) the Merger Agreement. We have also examined
originals or certified, conformed or photostatic copies of such records of
Northrop, certificates of officers of Northrop and of public officials and
such other documents as we have deemed relevant and necessary as the basis for
the opinions set forth below. In such examinations, we have
assumed the genuineness of all signatures, the authenticity of all documents
submitted to us as certified, conformed or photostatic copies, and the
authenticity of all originals of such copies.
 
  Based upon the foregoing and in reliance thereon, it is our opinion that the
Shares, when issued and delivered to the stockholders of Logicon in accordance
with the Merger Agreement, will be legally issued, fully paid and non-
assessable.
 
  Northrop is incorporated under the laws of the State of Delaware. We are not
admitted to practice in Delaware. However, we are generally familiar with the
Delaware General Corporation Law and have made such review thereof as we
consider necessary for the purpose of rendering this opinion. Subject to the
foregoing, this opinion is limited to Delaware, California and federal law.
 
  We hereby consent to the filing of this opinion as Exhibit 5.1 to the
Registration Statement and to the reference to the undersigned under the
caption "Legal Matters" in the Registration Statement.
 
                                          Very truly yours,
 
                                          GIBSON, DUNN & CRUTCHER LLP
 

<PAGE>
 
                                                                    EXHIBIT 8.1
 
                      [O'MELVENY & MYERS LLP LETTERHEAD]
 
                                     June
                                      6th
                                    1 9 9 7
 
(213) 669-6467                                                      515,233-004
                                                                     786702.V1
 
Logicon, Inc.
3701 Skypark Drive
Torrance, California 90505
 
    RE: PROPOSED MERGER OF NG ACQUISITION, INC.
           WITH AND INTO LOGICON, INC.
 
Dear Sir or Madam:
 
  You have requested our opinion concerning certain of the Federal income tax
consequences of the proposed statutory merger (the "Merger") of NG
Acquisition, Inc. ("Acquisition Subsidiary"), a Delaware corporation and
wholly owned subsidiary of Northrop Grumman Corporation, a Delaware
corporation ("Northrop"), with and into Logicon, Inc., a Delaware corporation
("Logicon").
 
  In connection with this opinion, we have examined such documents and matters
of law and fact as we have considered appropriate, including the Agreement and
Plan of Merger, dated as of May 4, 1997 (the "Agreement"), and the
Registration Statement of Northrop on Form S-4, to be filed on or about June
6, 1997 with the Securities and Exchange Commission, and with your consent
have relied (without any independent investigation on our part) on the
representations contained in the certificates of Logicon and Northrop which
are attached to the Agreement as Exhibits B-1 and B-2, respectively.
 
  Pursuant to the Agreement and for good and persuasive business reasons,
Acquisition Subsidiary, at the effective time of the Merger, will be merged,
in accordance with applicable state law, with and into Logicon, which will
continue as the surviving corporation. As a result of the Merger, (i)
Acquisition Subsidiary's separate corporate existence will cease, and Logicon
will hold substantially all of Logicon's assets and business, and
substantially all of the assets of Acquisition Subsidiary; (ii) each share of
Logicon Common Stock will be converted, pursuant to the formula set forth in
the Agreement, into a fraction of a share of Northrop Common Stock; and (iii)
Logicon will become a wholly owned subsidiary of Northrop. No fractional
interests will be issued to Logicon stockholders; instead, cash will be paid
in lieu of such fractional interests based on the value of Northrop Common
Stock as determined pursuant to the Agreement.
 
  Based upon the aforementioned facts and representations, and our review and
analysis of the current state of the law, it is our opinion that if the
Agreement is carried out in accordance with its terms:
 
    1. The Merger will constitute a reorganization within the meaning of
  section 368(a) of the Internal Revenue Code of 1986 (the "Code"), and
  Northrop, Logicon and Acquisition Subsidiary will each be a party to the
  reorganization within the meaning of section 368(b) of the Code;
<PAGE>
 
    2. No gain or loss will be recognized by the holders of shares of Logicon
  Common Stock ("Shares") upon the receipt of shares of Northrop Common Stock
  in exchange for such Shares, except that a stockholder who receives cash in
  lieu of a fractional share interest in Northrop Common Stock will recognize
  gain or loss equal to the difference between such cash and the basis
  allocated to the fractional share interest;
 
    3. The basis of the shares of Northrop Common Stock received by a holder
  of Shares (including any fractional share interest treated as received)
  will be the same as the basis of the Shares exchanged therefor; and
 
    4. The holding period of the shares of Northrop Common Stock received by
  a holder of Shares (including any fractional share interest treated as
  received) will include the holding period of the Shares exchanged therefor,
  provided the Shares were held as a capital asset at the effective time of
  the Merger.
 
  This opinion is based on current authorities and upon facts and assumptions
as of this date. It is subject to change in the event of a change in the
applicable law or a change in the interpretation of such law by the courts or
by the Internal Revenue Service. There can be no assurance that legislative or
administrative changes or court decisions will not be forthcoming that would
significantly modify this opinion. Any such changes may or may not be
retroactive with respect to transactions prior to the date of such changes.
This opinion has no binding effect or official status, and accordingly no
assurance can be given that the positions set forth herein will be sustained
by a court, if contested. No ruling will be obtained from the Internal Revenue
Service with respect to the Merger.
 
  This opinion is furnished by us as counsel for Logicon pursuant to Section
5.2(d) of the Agreement.
 
                                          Respectfully submitted,
 
                                          O'MELVENY & MYERS LLP
 
  We consent to the inclusion of this opinion as an exhibit to the
Registration Statement referred to above, and to the reference to the
undersigned therein.
 
                                          O'MELVENY & MYERS LLP

<PAGE>
 
                                                                    EXHIBIT 23.1
 
INDEPENDENT AUDITORS' CONSENT
 
 We consent to the incorporation by reference in this Registration Statement of
Northrop Grumman Corporation on Form S-4 of our report dated February 5, 1997,
appearing in the Annual Report on Form 10-K of Northrop Grumman Corporation for
the year ended December 31, 1996, and to the reference to us under the heading
"Experts" in the Prospectus, which is part of this Registration Statement.
 
Deloitte & Touche LLP
Los Angeles, California
June 6, 1997

<PAGE>
 
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
We hereby consent to the incorporation by reference in the Prospectus
constituting part of this Registration Statement on Form S-4 of Northrop
Grumman Corporation of our report dated May 22, 1997, appearing on page 28 of
Logicon, Inc.'s Annual Report on Form 10-K for the year ended March 31, 1997.
We also consent to the reference to us under the heading "Experts" in such
Prospectus.
 
PRICE WATERHOUSE LLP
 
Costa Mesa, California
June 5, 1997

<PAGE>
 
                                                                   EXHIBIT 23.4
 
PERSONAL AND CONFIDENTIAL
 
June 5, 1997
 
Board of Directors
Logicon, Inc.
3701 Skypark Drive
Torrance, CA 90505-4974
 
Re: Registration Statement of Northrop Grumman Corporation relating to the
    Northrop Grumman Shares being registered in connection with the merger
    described below
 
Gentlemen:
 
  Reference is made to our opinion letter dated May 4, 1997 with respect to
the fairness to the holders of the outstanding shares of Common Stock, par
value $0.10 per share (the "Shares"), of Logicon, Inc. (the "Company") of the
number of fully paid and non-assessable shares of Common Stock of Northrop
Grumman Corporation ("Northrop Grumman"), par value $1.00 per share (the
"Northrop Grumman Shares"), equal to the Exchange Ratio (as defined in the
Agreement mentioned below) to be received for each Share (the "Merger
Consideration") pursuant to the Agreement and Plan of Merger dated as of May
4, 1997 among Northrop Grumman, NG Acquisition, Inc., a wholly-owned
subsidiary of Northrop Grumman, and the Company (the "Agreement"). The
Agreement contemplates the merger (the "Merger") of NG Acquisition, Inc. with
and into the Company.
 
  The foregoing opinion letter is provided for the information and assistance
of the Board of Directors of the Company in connection with its consideration
of the transaction contemplated therein and is not to be used, circulated,
quoted or otherwise referred to for any other purpose, nor is it to be filed
with, included in or referred to in whole or in part in any registration
statement, proxy statement or any other document, except in accordance with
our prior written consent. We understand that the Company has determined to
include our opinion in the above-referenced Registration Statement.
 
  In that regard, we hereby consent to the reference to the opinion of our
Firm under the captions "The Merger--Background of the Merger" and "The
Merger--Opinion of Financial Advisor" and to the inclusion of the foregoing
opinion in the Proxy Statement included in the above-mentioned Registration
Statement. In providing such consent, except as may be required by the federal
securities laws, we do not intend that any person other than the Board of
Directors rely upon such opinion. In giving such consent, we do not thereby
admit that we come within the category of persons whose consent is required
under Section 7 of the Securities Act of 1933 or the rules and regulations of
the Securities and Exchange Commission thereunder.
 
                                          Very truly yours,
 
                                          /s/ Goldman, Sachs & Co.
                                          -------------------------------------
                                          Goldman, Sachs & Co.

<PAGE>
 
                                                                   EXHIBIT 99.1
 
- ------------------------------------------------------------------------------- 
 
 
PROXY
                                 LOGICON, INC.
 
                   PROXY FOR SPECIAL MEETING OF STOCKHOLDERS
                     TO BE HELD ON THURSDAY, JULY 17, 1997
        THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF
                                 LOGICON, INC.
 
  The undersigned hereby appoints Roland R. Speers and John R. Woodhull, or
either of them, as proxies, each with full power of substitution, and hereby
authorizes them to represent and vote, as designated below, all shares of Com-
mon Stock of Logicon, Inc. ("Logicon") held of record by the undersigned on
June 6, 1997, at the Special Meeting of Stockholders of the Company (the
"Meeting") to be held at the Roman Room, The Biltmore Hotel, 506 South Grand
Avenue, Los Angeles, California, 90071, on Thursday, July 17, 1997, at 10:30
a.m., Pacific Daylight Savings Time, and at any adjournments or postponements
thereof.
 
  THIS PROXY WILL BE VOTED AS DIRECTED ON THE OTHER SIDE OF THIS PROXY CARD.
WHEN NO CHOICE IS INDICATED, THIS PROXY WILL BE VOTED FOR PROPOSAL NO. 1. In
their discretion, the proxy holders are authorized to vote upon such other
business as may properly come before the Meeting or any adjournments or post-
ponements thereof.
 
 THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF LOGICON, INC.

- ------------------------------------------------------------------------------- 

                           -- FOLD AND DETACH HERE --

<PAGE>
 
- ------------------------------------------------------------------------------- 
 
                                                              Please mark   
                                                              your votes as [X]
                                                              indicated in  
                                                              this example   
                                 
                                 
THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL NO. 1.

                                     
A. APPROVAL AND ADOPTION OF THE AGREEMENT AND PLAN OF MERGER DATED AS OF MAY 4,
   1997 AMONG NORTHROP GRUMMAN CORPORATION, LOGICON, INC. AND NG ACQUISITION,
   INC.

                   FOR     AGAINST     ABSTAIN 
                   [_]       [_]         [_]          
                                    

2. To transact such other business as may properly be presented at the Meeting
   or any adjournments or postponements thereof.



WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING IN PERSON, YOU ARE URGED TO
COMPLETE, DATE, SIGN AND PROMPTLY MAIL THIS PROXY IN THE ENCLOSED RETURN
ENVELOPE SO THAT YOUR SHARES MAY BE REPRESENTED AT THE MEETING.
 
Please sign exactly as your name(s) appears on your stock certificate. If
shares of stock are held of record in the names of two or more persons or in
the name of husband and wife, whether as joint tenants or otherwise, both or
all of such persons should sign the proxy. If shares of stock are held of
record by a corporation, the proxy should be executed by the president or vice
president and the secretary or assistant secretary. If shares of stock are
held of record by a partnership, the proxy should be executed by a duly
authorized officer of the partnership. Executors, administrators or other
fiduciaries who execute the above proxy for a deceased stockholder should give
their full title. Please date this proxy.

Signature(s)                                           Date: 
             ----------------------------------------       ------------------


Signature(s)                                           Date: 
             ----------------------------------------       ------------------

NOTE: Joint owners should each sign. When signing as attorney, executor,
      administrator, trustee or guardian, please give full title as such.

- ------------------------------------------------------------------------------- 

                           -- FOLD AND DETACH HERE --



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