LORAL CORP /NY/
8-K, 1996-05-20
SEARCH, DETECTION, NAVAGATION, GUIDANCE, AERONAUTICAL SYS
Previous: LOGIMETRICS INC, 10QSB/A, 1996-05-20
Next: LUMEX INC, 10-Q, 1996-05-20



<PAGE>
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                               ----------------
 
                                    FORM 8-K
                                 CURRENT REPORT
                        PURSUANT TO SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
         DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED)--MAY 16, 1996
 
                               ----------------
 
                     LOCKHEED MARTIN TACTICAL SYSTEMS, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
        NEW YORK                     1-4238                  13-1718360
     (STATE OR OTHER        (COMMISSION FILE NUMBER)        (IRS EMPLOYER
     JURISDICTION OF                                     IDENTIFICATION NO.)
     INCORPORATION)
 
                             6801 ROCKLEDGE DRIVE,
                               BETHESDA, MARYLAND
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)
 
                                     20817
                                   (ZIP CODE)
 
                                 (301) 897-6000
              (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)
 
                               ----------------
 
                               LORAL CORPORATION
             (FORMER NAME OR ADDRESS, IF CHANGED SINCE LAST REPORT)
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<PAGE>
 
ITEM 5. OTHER EVENTS
 
  This Current Report on Form 8-K is being filed in connection with the full
and unconditional guarantee by Lockheed Martin Tactical Systems, Inc., a New
York corporation ("Tactical Systems"), of $500,000,000 aggregate principal
amount of Lockheed Martin Corporation's (the "Corporation") 6.55% Notes Due
1999, $750,000,000 aggregate principal amount of the Corporation's 6.85% Notes
Due 2001, $750,000,000 aggregate principal amount of the Corporation's 7.25%
Notes Due 2006, $600,000,000 aggregate principal amount of the Corporation's
7.65% Debentures Due 2016, $600,000,000 aggregate principal amount of the
Corporation's 7.75% Debentures Due 2026 and $300,000,000 aggregate principal
amount of the Corporation's 7.20% Debentures Due 2036 (the "Offered Debt
Securities"). The Offered Debt Securities and the related guarantees of
Tactical Systems are being offered and sold under an existing Registration
Statement on Form S-3 (Reg. No. 333-01939) covering up to $5,000,000,000 in
Debt Securities of the Corporation and related guarantees of Tactical Systems.
 
ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS
 
<TABLE>
<CAPTION>
   EXHIBIT NO.                     DESCRIPTION OF EXHIBITS
   -----------                     -----------------------
   <C>         <S>
       1(a)    Underwriting Agreement dated May 16, 1996.
       1(b)    Pricing Agreement dated May 16, 1996.
       4(a)    Indenture dated as of May 15, 1996.
       4(b)    Form of 6.55% Note due 1999.
       4(c)    Form of 6.85% Note due 2001.
       4(d)    Form of 7.25% Note due 2006.
       4(e)    Form of 7.65% Debenture due 2016.
       4(f)    Form of 7.75% Debenture due 2026.
       4(g)    Form of 7.20% Debenture due 2036.
       5(a)    Opinion of Miles & Stockbridge, a Professional Corporation.
       5(b)    Opinion of William J. LaSalle.
      12       Computation of Ratios of Earnings to Fixed Charges and Earnings
               to Combined Fixed Charges and Preferred Stock Dividends and Pro
               Forma Ratios of Earnings to Fixed Charges and Earnings to
               Combined Fixed Charges and Preferred Stock Dividends.
</TABLE>
 
                                       1
<PAGE>
 
                                   SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934, THE
REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON ITS BEHALF BY THE
UNDERSIGNED HEREUNTO DULY AUTHORIZED.
 
                                          Lockheed Martin Tactical Systems,
                                           Inc.
 
                                                  /s/ Stephen M. Piper
                                          _____________________________________
                                                    Stephen M. Piper
                                              Vice President and Assistant
                                                        Secretary
 
May 20, 1996
 
                                       2
<PAGE>
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
 EXHIBIT NO.                         DESCRIPTION                           PAGE
 -----------                         -----------                           ----
 <C>         <S>                                                           <C>
     1(a)    Underwriting Agreement dated May 16, 1996.
     1(b)    Pricing Agreement dated May 16, 1996.
     4(a)    Indenture dated as of May 15, 1996.
     4(b)    Form of 6.55% Note due 1999.
     4(c)    Form of 6.85% Note due 2001.
     4(d)    Form of 7.25% Note due 2006.
     4(e)    Form of 7.65% Debenture due 2016.
     4(f)    Form of 7.75% Debenture due 2026.
     4(g)    Form of 7.20% Debenture due 2036.
     5(a)    Opinion of Miles & Stockbridge, a Professional Corporation.
     5(b)    Opinion of William J. LaSalle.
    12       Computation of Ratios of Earnings to Fixed Charges and
             Earnings to Combined Fixed Charges and Preferred Stock
             Dividends and Pro Forma Ratios of Earnings to Fixed Charges
             and Earnings to Combined Fixed Charges and Preferred Stock
             Dividends.
</TABLE>
 
                                       3

<PAGE>
 
                          LOCKHEED MARTIN CORPORATION

                           Guaranteed Debt Securities

                        Payments on the Guaranteed Debt
                          Securities are Guaranteed by

                     LOCKHEED MARTIN TACTICAL SYSTEMS, INC.


                             Underwriting Agreement
                             ----------------------



                                                                    May 16, 1996


To the several Underwriters
  named in the respective Pricing
  Agreement hereinafter described


Dear Sirs:

          From time to time Lockheed Martin Corporation, a Maryland corporation
(the "Corporation"), and Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), propose to enter into one or more Pricing
Agreements (each a "Pricing Agreement") in the form of Annex I hereto, with such
additions and deletions as the parties thereto may determine, and, subject to
the terms and conditions stated herein and therein, the Corporation proposes to
issue and sell to the firms named in Schedule I to the applicable Pricing
Agreement (such firms constituting the "Underwriters" with respect to such
Pricing Agreement and the securities specified therein) certain of its debt
securities (the "Securities") specified in Schedule II to such Pricing Agreement
(with respect to such Pricing Agreement, the "Designated Securities"), which
Securities shall be fully and unconditionally guaranteed by the Guarantor (the
"Guarantees").

          The terms and rights of any particular issuance of Designated
Securities shall be as specified in the Pricing Agreement relating thereto and
in or pursuant to the indenture (the "Indenture") identified in such Pricing
Agreement.

          1.  Particular sales of Designated Securities may be made from time to
time to the Underwriters of such Designated Securities, for whom the firms
designated as representatives of the Underwriters of such Designated Securities
in the Pricing Agreement relating thereto will act as representatives (the
"Representatives").  The term "Representatives" also refers to a single firm
acting as sole representative of the Underwriters and to Underwriters who act
without any firm being designated as their representative.  The obligation of
the Corporation to issue and
<PAGE>
 
sell any of the Securities, the obligation of the Guarantor to provide the
Guarantees and the obligation of any of the Underwriters to purchase any of the
Securities shall be further evidenced by the Pricing Agreement with respect to
the Designated Securities specified therein.  Each Pricing Agreement shall
specify the aggregate principal amount of such Designated Securities, the
initial public offering price of such Designated Securities, the purchase price
to the Underwriters of such Designated Securities, the names of the Underwriters
of such Designated Securities, the names of the Representatives of such
Underwriters and the principal amount of such Designated Securities to be
purchased by each Underwriter and shall set forth the date, time and manner of
delivery of such Designated Securities and payment therefor.  The Pricing
Agreement shall also specify (to the extent not set forth in the Indenture and
the registration statement and prospectus with respect thereto) the terms of
such Designated Securities.  A Pricing Agreement shall be in the form of an
executed writing (which may be in counterparts), and may be evidenced by an
exchange of telegraphic communications or any other rapid transmission device
designed to produce a written record of communications transmitted.  The
obligations of the Underwriters under this Agreement and each Pricing Agreement
shall be several and not joint.

          2.  The Corporation and the Guarantor represent and warrant to, and
agree with, each Underwriter that:

              (a) The Corporation meets the requirements for the use of Form S-3
under the Securities Act of 1933, as amended, and the rules and regulations
adopted thereunder (respectively, the "Securities Act" and the "Rules"), and the
Staff of the Securities and Exchange Commission (the "Commission") has concurred
in the Guarantor's request that the Guarantor be entitled to use Form S-3.  The
Corporation and the Guarantor have carefully prepared and filed with the
Commission a registration statement or registration statements on Form S-3 (the
file number or numbers of which is or are set forth in Schedule II to the
Pricing Agreement relating to the applicable Designated Securities), which has
become effective, for the registration under the Securities Act of the
Securities and the Guarantees.  Such registration statement or registration
statements, as amended at the date of this Agreement, meet or meets, as the case
may be, the requirements set forth in Rule 415(a)(1)(x) under the Securities Act
and complies in all other material respects with such Rule.  The Corporation and
the Guarantor propose to file with the Commission pursuant to Rule 424 under the
Securities Act ("Rule 424") a supplement to the form of prospectus included in
such registration statement relating to such Designated Securities and the plan
of distribution thereof and have previously advised you of all further
information (financial and other) with respect to the Corporation and the
Guarantor to be set forth therein.  The registration statement as amended at the
date of this Agreement, including the exhibits thereto and all documents
incorporated therein by reference pursuant to Item 12 of Form S-3 (the
"Incorporated Documents"), is hereinafter referred to as the


                                     - 2 -
<PAGE>
 
"Registration Statement," and the prospectus as then amended in relation to the
applicable Designated Securities, including the Incorporated Documents, is
hereinafter referred to as the "Basic Prospectus"; and such supplemented form of
prospectus, in the form in which it shall be filed with the Commission pursuant
to Rule 424 (including the Basic Prospectus as so supplemented) is hereinafter
called the "Final Prospectus."  Any preliminary form of the Final Prospectus
which has heretofore been filed pursuant to Rule 424 or included in the
Registration Statement is hereinafter called an "Interim Prospectus."  If the
Corporation and the Guarantor have filed an abbreviated registration statement
to register additional Designated Securities pursuant to Rule 462(b) under the
Securities Act (the "Rule 462 Registration Statement"), then any reference
hereunder to the term "Registration Statement" also shall be deemed to include
such Rule 462 Registration Statement.  Any reference herein to the Registration
Statement, the Basic Prospectus, any Interim Prospectus or the Final Prospectus
shall be deemed to refer to and include the Incorporated Documents which were
filed under the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), on or before the date of this Agreement, the date of the Pricing
Agreement relating to such Designated Securities or the issue date of the Basic
Prospectus, any Interim Prospectus or the Final Prospectus, as the case may be;
and any reference herein to the terms "amend," "amendment," or "supplement" with
respect to the Registration Statement, the Basic Prospectus, any Interim
Prospectus or the Final Prospectus shall be deemed to refer to and include the
filing of any Incorporated Documents under the Exchange Act after the date of
this Agreement, the date of the Pricing Agreement relating to such Designated
Securities or the issue date of the Basic Prospectus, any Interim Prospectus or
the Final Prospectus, as the case may be.

          (b) The Commission has not issued an order preventing or suspending
the use of the Basic Prospectus or any Interim Prospectus.

          (c) The Basic Prospectus and any Interim Prospectus have complied in
all material respects with the requirements of the Securities Act and of the
Rules and, as of their respective dates, did not include any untrue statement of
a material fact or omit to state a material fact necessary to make the
statements therein not misleading.

          (d) As of the date hereof, when the Final Prospectus is first filed
with the Commission pursuant to Rule 424, when, before the Time of Delivery (as
hereinafter defined) for any Designated Securities, any amendment to the
Registration Statement becomes effective, when, before such Time of Delivery,
any document incorporated by reference in the Registration Statement is filed
with the Commission, when any supplement to the Final Prospectus is filed with
the Commission and at such Time of Delivery, the Registration Statement, the
Final Prospectus and any such amendment or supplement will comply in all
material respects with the requirements of the Securities Act and the Rules, the
Incorporated

                                     - 3 -
<PAGE>
 
Documents will comply in all material respects with the requirements of the
Securities Act or the Exchange Act, as the case may be, and the rules and
regulations adopted by the Commission thereunder, and no part of the
Registration Statement, the Final Prospectus or any such amendment or supplement
will include an untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading; except that this representation and warranty does not apply to
(i) statements or omissions in the Registration Statement or Final Prospectus
(or in amendments or supplements thereto) made in reliance upon information
furnished in writing to the Corporation or the Guarantor by the Representatives
on behalf of any Underwriter of such Designated Securities expressly for use
therein or (ii) that part of the Registration Statement which shall constitute
the Statement of Eligibility and Qualification of the Trustee under the Trust
Indenture Act of 1939 on Form T-1, except statements or omissions in such
statement made in reliance upon information furnished in writing to the Trustee
by or on behalf of the Corporation or the Guarantor for use therein.

          (e) The certificates delivered pursuant to paragraph (e) of Section 5
hereof and all other documents delivered by the Corporation or the Guarantor or
any of their representatives in connection with the issuance and sale of the
applicable Designated Securities were on the dates on which they were delivered,
or will be on the dates on which they are to be delivered, in all material
respects true and complete.

          (f) No consent, approval, authorization or order of any court or
governmental agency or body is required for the consummation by the Corporation
or the Guarantor of the transactions contemplated by this Agreement or the
Pricing Agreement relating to the applicable Designated Securities, except those
which have been obtained or which may be required under the Securities Act and
such qualifications as may be required under state laws in connection with the
purchase and distribution of such Designated Securities by the Underwriters, and
consummation of such transactions will not result in the material breach of any
terms of, or constitute a material default under, any other material agreement
or undertaking of the Corporation or the Guarantor.

      3.  Upon the execution of the Pricing Agreement applicable to any
Designated Securities and authorization by the Representatives of the release of
such Designated Securities, the several Underwriters propose to offer such
Designated Securities for sale upon the terms and conditions set forth in the
Final Prospectus as amended or supplemented.  The Corporation and the Guarantor
hereby confirm that the Underwriters of any Designated Securities have been
authorized to distribute any Interim Prospectus and are authorized to distribute
the Final Prospectus, each in such form as shall be provided to the Underwriters
by the Corporation and the Guarantor (as they may be amended or supplemented
from time to time if the Corporation and the Guarantor furnish amendments or
supplements thereto to such Underwriters).

                                     - 4 -
<PAGE>
 
     4.  Designated Securities to be purchased by each Underwriter pursuant
to the Pricing Agreement relating thereto, in definitive form to the extent
practicable, and in such authorized denominations and registered in such names
as the Representatives may request upon at least forty-eight hours' prior notice
to the Corporation, shall be delivered by or on behalf of the Corporation and
the Guarantor to the Representatives for the account of such Underwriter,
against payment by such Underwriter or on its behalf of the purchase price
therefor by certified or official bank check or checks or wire transfer payable
in immediately available, same-day funds or any other method specified in the
Pricing Agreement, payable to the order of the Corporation in the funds
specified in such Pricing Agreement, all at the place and time and date
specified in such Pricing Agreement or at such other place and time and date as
the Representatives and the Corporation may agree upon in writing, such time and
date being herein called the "Time of Delivery" for such Securities.

     5.  The obligations of the Underwriters of any Designated Securities
under the Pricing Agreement relating to such Designated Securities shall be
subject, in the discretion of the Representatives, to the condition that all
representations and warranties and statements of officers of the Corporation and
the Guarantor made pursuant to the provisions hereof are, at and as of the Time
of Delivery for such Designated Securities, true and correct, the condition that
the Corporation shall have performed all of its obligations hereunder
theretofore to be performed, and the following additional conditions:

          (a) The Final Prospectus shall have been filed or mailed for filing
with the Commission in accordance with Rule 424(b).

          (b) No order suspending the effectiveness of the Registration
Statement, as amended from time to time, shall be in effect and no proceedings
for such purpose shall be pending before or threatened by the Commission and any
requests for additional information on the part of the Commission (to be
included in the Registration Statement or the Final Prospectus) shall have been
complied with to the reasonable satisfaction of the Representatives.

          (c) Since the respective dates as of which information is given in the
Registration Statement and the Final Prospectus, other than in connection with
the transactions contemplated by or discussed under the heading "Recent
Developments" in the Final Prospectus or in the Current Report on Form 8-K of
the Corporation filed with the Commission on May 2, 1996 (as amended by the
Current Report on Form 8-K/A of the Corporation filed with the Commission on May
8, 1996), or in connection with the adoption of new accounting standards, (i)
there shall not have been any material adverse change in the capital stock or
long-term debt of the Corporation and its subsidiaries taken as a whole, (ii)
there shall not have been any material adverse change in the general affairs,
management, financial position or results of operations of the

                                     - 5 -
<PAGE>
 
Corporation and its subsidiaries taken as a whole, whether or not arising from
transactions in the ordinary course of business, in each case other than as
included or incorporated in or contemplated by the Final Prospectus and (iii)
the Corporation and its subsidiaries taken as a whole shall not have sustained
any material loss or interference with their business taken as a whole from
fire, explosion, flood or other calamity, whether or not covered by insurance,
or from any labor dispute or any court or legislative or other governmental
action, order or decree that is not set forth in the Final Prospectus if, in the
judgment of the Representatives, any such development referred to in clauses
(i), (ii) or (iii) makes it impracticable or inadvisable to proceed with the
offering and delivery of such Designated Securities as contemplated by the
Registration Statement and the Final Prospectus.

          (d) The representations and warranties of the Corporation and the
Guarantor contained herein shall be true and correct as of the date hereof, on
and as of the date of the Pricing Agreement for such Designated Securities, as
of the date of the effectiveness of any amendment to the Registration Statement
filed before the Time of Delivery for such Designated Securities, as of the date
of the filing of any document incorporated by reference therein before the Time
of Delivery for such Designated Securities and at and as of the Time of Delivery
for such Designated Securities and the Corporation and the Guarantor shall have
performed all covenants and agreements herein contained to be performed on its
part at or prior to the Time of Delivery for such Designated Securities.

          (e) The Representatives shall have received at the Time of Delivery
for such Designated Securities certificates, dated the date of the Time of
Delivery for such Designated Securities, of the chief executive officer or a
vice president and the principal financial or accounting officer or the
treasurer of the Corporation and the Guarantor, each of which shall certify that
(i) no order suspending the effectiveness of the Registration Statement or
prohibiting the sale of such Designated Securities has been issued and no
proceedings for such purpose are pending before or, to the knowledge of such
officers, threatened by the Commission and (ii) the representations and
warranties of the Corporation or the Guarantor, as the case may be, contained
herein are true and correct at and as of such Time of Delivery and the
Corporation has performed all covenants and agreements herein contained to be
performed on its part at or prior to such Time of Delivery.

          (f) On the date of the Pricing Agreement for such Designated
Securities and at the Time of Delivery for such Designated Securities, the
independent accountants of the Corporation shall have furnished to the
Representatives a letter dated the date of the Pricing Agreement and a letter
dated such Time of Delivery, respectively, as to such matters as the
Representatives may reasonably request and in form and substance satisfactory to
the Representatives.


                                     - 6 -
<PAGE>
 
          (g) On the date of the Pricing Agreement for such Designated
Securities and at the Time of Delivery for such Designated Securities, the
independent accountants of Loral Corporation shall have furnished to the
Representatives a letter dated the date of the Pricing Agreement and a letter
dated such Time of Delivery, respectively, as to such matters as the
Representatives may reasonably request and in form and in substance satisfactory
to the Representatives.

          (h) Counsel for the Corporation reasonably satisfactory to the
Representatives shall have furnished to the Representatives their written
opinion, dated the Time of Delivery for such Designated Securities, as to such
matters as the Representatives may reasonably request and in form and in
substance satisfactory to the Representatives.

          (i) Counsel for the Underwriters shall have furnished to the
Representatives such opinion or opinions, dated the Time of Delivery for such
Designated Securities, with respect to the incorporation of the Guarantor, the
validity of the Indenture, such Designated Securities, the Registration
Statement, the Prospectus as amended or supplemented and other related matters
as the Representatives may reasonably request, and such counsel shall have been
given access to such papers and information as they may reasonably request to
enable them to pass upon such matters.

          (j) Subsequent to the date of the Pricing Agreement related to such
Designated Securities, no downgrading by Moody's Investors Service, Inc.,
Standard & Poor's Corporation or Duff & Phelps shall have occurred in the rating
accorded to the debt securities of the Corporation that are guaranteed by the
Guarantor.
          (k) Subsequent to the execution of the Pricing Agreement relating to
such Designated Securities, neither the Corporation nor the Guarantor shall have
filed an Incorporated Document under the Exchange Act unless a copy thereof
shall have first been submitted to the Representatives within a reasonable
period of time prior to the filing thereof and the Representatives shall not
have promptly and reasonably objected thereto in writing.

     6.  The Corporation and the Guarantor agree with each of the Underwriters
of any Designated Securities:

          (a) To make no further amendment or any supplement to the Registration
Statement or the Basic Prospectus as amended or supplemented after the date of
the Pricing Agreement relating to such Designated Securities and prior to the
Time of Delivery for such Designated Securities which shall be reasonably
disapproved in writing by the Representatives for such Designated Securities
promptly after reasonable notice thereof; to file promptly all reports and any
definitive proxy or information statements required to be filed by the
Corporation and the Guarantor with the Commission pursuant to Section 13(a),
13(c), 14 or 15(d) of the Exchange Act; and to advise the Representatives
promptly of any

                                    - 7 - 
<PAGE>
 
such amendment or supplement after such Time of Delivery and furnish the
Representatives with copies thereof for so long as the delivery of a prospectus
is required in connection with the offering or sale of such Designated
Securities, and during such same period to advise the Representatives, promptly
after it receives notice thereof, of the time when any amendment to the
Registration Statement has been filed or become effective or any supplement to
the Basic Prospectus has been filed, or mailed for filing, of the issuance by
the Commission of any stop order or of any order preventing or suspending the
use of any prospectus relating to the Securities, of the suspension of the
qualification of the Securities for offering or sale in any jurisdiction, of the
initiation or threatening of any proceeding for any such purpose, or of any
request by the Commission for the amendment or supplementing of the Registration
Statement or the Basic Prospectus or for additional information; and, in the
event of the issuance of any such stop order or of any such order preventing or
suspending the use of any prospectus relating to the Securities or suspending
any such qualification, to promptly use all reasonable efforts to obtain its
withdrawal.  The Corporation and the Guarantor promptly will cause the Final
Prospectus to be filed or mailed for filing with the Commission in accordance
with Rule 424(b).

          (b) As soon as the Corporation or the Guarantor is advised thereof, to
advise the Representatives (i) when the Final Prospectus shall have been filed
with or mailed to the Commission for filing in accordance with Rule 424(b), (ii)
when any amendment to the Registration Statement relating to the Designated
Securities shall have become effective, (iii) of the initiation or threatening
by the Commission of any proceedings for the issuance of any order suspending
the effectiveness of the Registration Statement or the qualification of the
Indenture, (iv) of receipt by the Corporation or the Guarantor or any
representative of or attorney for the Corporation or the Guarantor of any other
communication from the Commission relating to the Corporation, the Guarantor,
the Registration Statement, the Basic Prospectus, any Interim Prospectus or the
Final Prospectus and (v) of the receipt by the Corporation or the Guarantor or
any representative of or attorney for the Corporation or the Guarantor of any
notification with respect to the suspension of the qualification of such
Designated Securities for sale in any jurisdiction or the initiation or
threatening of any proceeding for such purpose.  The Corporation and the
Guarantor each will make every reasonable effort to prevent the issuance of an
order suspending the effectiveness of the Registration Statement or the
qualification of the Indenture and if any such order is issued to obtain as soon
as possible the lifting thereof.

          (c) To deliver to the Representatives, without charge, (i) a signed
copy of the Registration Statement and of any amendments thereto (including
conformed copies of all exhibits filed with, or incorporated by reference in,
any such document), and (ii) as many conformed copies of the Registration
Statement and of any amendments thereto which shall become effective on or
before

                                     - 8 -
<PAGE>
 
the Time of Delivery for such Designated Securities (excluding exhibits) as the
Representatives may reasonably request.

          (d) During such period as a prospectus is required by law to be
delivered by an Underwriter or dealer, to deliver, without charge to the
Representatives and to Underwriters and dealers, at such office or offices as
the Representatives may designate, as many copies of any Interim Prospectus and
the Final Prospectus as the Representatives may reasonably request.

          (e) During the period in which copies of the Final Prospectus are to
be delivered as provided in paragraph (d) above, if any event occurs as a result
of which it shall be necessary to amend or supplement the Final Prospectus in
order to ensure that no part of the Final Prospectus contains an untrue
statement of a material fact or omits to state a material fact necessary to make
the statements therein, in light of the circumstances existing when the Final
Prospectus is to be delivered to a purchaser, not misleading, forthwith to
prepare, deliver to the Representatives, file with the Commission and deliver
without charge, to the Underwriters and to dealers (to the extent requested and
at the addresses furnished by the Representatives to the Corporation) to whom
such Designated Securities may have been sold by the Underwriters, and to other
dealers upon request, either amendments or supplements to the Final Prospectus
so that the statements in the Final Prospectus, as so amended or supplemented,
will comply with the standards set forth in this paragraph (e).  Delivery by
Underwriters of any such amendments or supplements to the Final Prospectus shall
not constitute a waiver of any of the conditions set forth in Section 5 hereof.

          (f) To make generally available to its security holders as soon as
practicable an earnings statement of the Corporation and its subsidiaries (which
need not be audited) complying with Section 11(a) of the Act and the Rules
thereunder (including, at the option of the Corporation, Rule 158).

          (g) Promptly from time to time to take such action as the
Representatives may request in order to qualify such Designated Securities for
offer and sale under the securities or "blue sky" laws of such jurisdictions as
the Representatives may reasonably request; provided that in no event shall the
Corporation or the Guarantor be obligated to subject itself to taxation or to
qualify to do business in any jurisdiction where it is not now so qualified or
to take any action that would subject it to service of process in suits, other
than those arising out of the offering or sale of such Designated Securities, in
any jurisdiction where it is not now so subject.

          (h) For a period of five years following the date of issuance of such
Designated Securities, to supply to the Representatives and to each other
Underwriter who may so request in writing copies of such financial statements
and other periodic and special reports as the Corporation or the Guarantor may
from time


                                     - 9 -
<PAGE>
 
to time distribute generally to the holders of any class of its capital stock
and to furnish to the Representatives copies of each annual or other report it
shall be required to file with the Commission.

          (i) During the period beginning from the date of the Pricing Agreement
for such Designated Securities and continuing to and including the earlier of
(i) the termination of trading restrictions for such Designated Securities, as
notified to the Corporation by the Representatives, or (ii) the Time of Delivery
for such Designated Securities, not to offer, sell, contract to sell or
otherwise dispose of any debt securities of the Corporation or the Guarantor
that mature more than one year after such Time of Delivery and that are
substantially similar to such Designated Securities, without the prior written
consent of the Representatives.

          (j) If the Final Prospectus states that such Designated Securities
will be listed on a stock exchange, to use its best efforts to cause such
Designated Securities to be listed on such stock exchange.

     7.  The Corporation and the Guarantor covenant and agree with each
Underwriter that the Corporation and the Guarantor will pay or cause to be paid
the following: (i) the fees, disbursements and expenses of their counsel and
accountants in connection with the registration of the Securities under the
Securities Act and all other expenses in connection with the preparation,
printing and filing of the Registration Statement, the Basic Prospectus, any
Interim Prospectus and the Final Prospectus and amendments and supplements
thereto and the mailing and delivering of copies thereof to the Underwriters and
dealers; (ii) the cost of printing or producing any Agreement among
Underwriters, this Agreement, any Pricing Agreement, any Indenture, any Blue Sky
and Legal Investment Memoranda and any other documents in connection with the
offering, purchase, sale and delivery of the Securities; (iii) all expenses in
connection with the qualification of the Securities for offering and sale under
state securities laws as provided in Section 6(g) hereof, including the
reasonable fees and disbursements of counsel for the Underwriters in connection
with such qualification and in connection with the Blue Sky and legal investment
surveys; (iv) any fees charged by securities rating services for rating the
Securities; (v) any filing fees incident to any required review by the National
Association of Securities Dealers, Inc. of the terms of the sale of the
Securities; (vi) the cost of preparing the Securities; (vii) the fees and
expenses of any Trustee in connection with any Indenture and the Securities;
(viii) the fee, if any, for listing the Securities on any national securities
exchange; and (ix) all other costs and expenses incident to the performance of
its obligations hereunder which are not otherwise specifically provided for in
this Section. It is understood, however, that, except as provided in this
Section, Section 8 and Section 12 hereof, the Underwriters will pay all of their
own costs and expenses, including the fees of their counsel, transfer taxes


                                    - 10 -
<PAGE>
 
on resale of any of the Securities by them, and any advertising expenses
connected with any offers they may make.

     8.  (a)  The Corporation and the Guarantor each agree to indemnify and
hold harmless each Underwriter against any and all losses, claims, damages and
liabilities, joint or several (including any reasonable investigation, legal and
other expenses incurred in connection with, and any amount paid in settlement
of, any action, suit or proceeding or any claim asserted, provided that legal
expenses relate to counsel acceptable to the Corporation and the Guarantor), to
which they, or any of them, may become subject under the Securities Act, the
Exchange Act or other Federal or state statutory law or regulation, at common
law or otherwise, insofar as such losses, claims, damages or liabilities arise
solely out of or are based solely upon any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement, the Basic
Prospectus, any Interim Prospectus or the Final Prospectus, or any amendment or
supplement thereto, or the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, except insofar as any such untrue statement or omission
or alleged untrue statement or omission was made in (i) the Registration
Statement, the Basic Prospectus, any Interim Prospectus or the Final Prospectus,
or such amendment or supplement, in reliance upon and in conformity with
information furnished in writing to the Corporation or the Guarantor by the
Representatives on behalf of any Underwriter of Designated Securities expressly
for use in the Registration Statement, the Basic Prospectus, the Interim
Prospectus or the Final Prospectus as amended or supplemented relating to such
Designated Securities or (ii) that part of the Registration Statement which
shall constitute the Statement of Eligibility and Qualification on Form T-1 of
any Trustee under the Trust Indenture Act, except statements or omissions in
such Statement made in reliance upon information furnished in writing to such
Trustee by or on behalf of the Corporation or the Guarantor for use therein;
provided, however, that such indemnity with respect to the Basic Prospectus or
any Interim Prospectus shall not inure to the benefit of any Underwriter of
Designated Securities (or any person controlling such Underwriter) from whom the
person asserting any such loss, claim, damage or liability purchased Designated
Securities that are the subject thereof if such person did not receive a copy of
the Final Prospectus (not including the Incorporated Documents) at or prior to
the confirmation of the sale of such Designated Securities to such person in any
case where such delivery is required by the Securities Act and the untrue
statement or omission of a material fact contained in the Basic Prospectus or
any Interim Prospectus was corrected in the Final Prospectus, unless such
failure to deliver the Final Prospectus was a result of noncompliance by the
Corporation and the Guarantor with Section 6(d) hereof.

          (b) Each Underwriter of Designated Securities agrees to indemnify and
hold harmless the Corporation and the Guarantor to the same extent as the
foregoing indemnity from the Corporation and


                                    - 11 -
<PAGE>
 
the Guarantor to each Underwriter, but only insofar as such losses, claims,
damages or liabilities arise solely out of or are based upon any untrue
statement or omission or alleged untrue statement or omission that was made in
the Registration Statement, the Basic Prospectus, any Interim Prospectus or the
Final Prospectus, or any amendment or supplement thereto, in reliance upon and
in conformity with information furnished in writing to the Corporation or the
Guarantor by the Representatives on behalf of such Underwriter expressly for use
in the Registration Statement, the Basic Prospectus, any Interim Prospectus or
the Final Prospectus as amended or supplemented relating to such Designated
Securities; provided, however, that the obligation of each such Underwriter to
indemnify the Corporation and the Guarantor hereunder shall be limited to the
total price at which the Designated Securities purchased by such Underwriter
hereunder were offered to the public.

          (c) Any party that proposes to assert the right to be indemnified
under this Section 8 will, promptly after receipt of notice of commencement of
any action, suit or proceeding against any such party in respect of which a
claim is to be made against an indemnifying party under this Section 8, notify
each such indemnifying party of the commencement of such action, suit or
proceeding, enclosing a copy of all papers served, but the omission so to notify
such indemnifying party of any such action, suit or proceeding shall not relieve
it from any liability that it may have to any indemnified party otherwise than
under this Section 8 (it being understood that the omission so to notify such
indemnifying party shall relieve it from any liability it may have to any
indemnified party under this Section 8; provided, however, that timely notice
hereunder to the Representatives made pursuant to Section 13 hereof shall be
deemed timely notice to any Underwriter that is an indemnifying party).  In case
any such action, suit or proceeding shall be brought against any indemnified
party and it shall notify the indemnifying party of the commencement thereof,
such indemnifying party or parties shall be entitled to participate in, and, to
the extent that it or they shall wish, jointly with any other indemnifying party
similarly notified, to assume the defense thereof, with counsel satisfactory to
such indemnified party, and after notice from the indemnifying party or parties
to such indemnified party of its or their election so to assume the defense
thereof, the indemnifying party or parties shall not be liable to such
indemnified party for any legal or other expenses, other than reasonable costs
of investigation subsequently incurred by such indemnified party in connection
with the defense thereof.  The indemnified party shall have the right to employ
its counsel in any such action, but the fees and expenses of such counsel shall
be at the expense of such indemnified party unless (i) the employment of counsel
by such indemnified party has been authorized by the indemnifying party or
parties, (ii) the indemnified party shall have reasonably concluded that there
may be a conflict of interest between the indemnifying party or parties and the
indemnified party in the conduct of the defense of such action (in which case
the indemnifying party or parties shall not have the right to direct the defense
of such action on behalf of the indemnified party), or


                                    - 12 -
<PAGE>
 
(iii) the indemnifying party or parties shall not in fact have employed counsel
to assume the defense of such action, in each of which cases the fees and
expenses of counsel shall be at the expense of the indemnifying party or
parties.  In the event that the indemnified party retains separate counsel
pursuant to clauses (i), (ii), or (iii) of the previous sentence, such counsel
shall be reasonably acceptable to the indemnifying party.  Any indemnifying
party shall not be liable for any settlement of any action or claim effected
without its written consent.

          (d) If the indemnification provided for in this Section 8 is
unavailable to hold harmless an indemnified party under subsection (a) or (b)
above in respect of any losses, claims, damages or liabilities (or actions in
respect thereof) referred to therein (other than because such indemnification,
by its terms, does not apply), then each indemnifying party shall contribute to
the amount paid or payable by such indemnified party as a result of such losses,
claims, damages or liabilities (or actions in respect thereof) in such
proportion as is appropriate to reflect the relative benefits received by the
Corporation and the Guarantor on the one hand and the Underwriters of the
Designated Securities on the other from the offering of the Designated
Securities to which such loss, claim, damage or liability (or actions in respect
thereof) relates.  If, however, the allocation provided by the immediately
preceding sentence is not permitted by applicable law or if the indemnified
party failed to give the notice required under subsection (c) above, then each
indemnifying party shall contribute to such amount paid or payable by such
indemnified party in such proportion as is appropriate to reflect not only such
relative benefits but also the relative fault of the Corporation and the
Guarantor on the one hand and the Underwriters of the Designated Securities on
the other in connection with the statements or omissions which resulted in such
losses, claims, damages or liabilities (or actions in respect thereof), as well
as any other relevant equitable considerations.  The relative benefits received
by the Corporation and the Guarantor on the one hand and such Underwriters on
the other shall be deemed to be in the same proportion as the total net proceeds
from such offering (before deducting expenses) received by the Corporation bear
to the total underwriting discounts and commissions received by such
Underwriters.  The relative fault shall be determined by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact
or the omission or alleged omission to state a material fact relates to
information supplied by the Corporation and the Guarantor on the one hand or
such Underwriters on the other and the parties' relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or
omission.  The Corporation, the Guarantor and the Underwriters agree that it
would not be just and equitable if contribution pursuant to this subsection (d)
were determined by pro rata allocation (even if the Underwriters were treated as
one entity for such purpose) or by any other method of allocation which does not
take account of the equitable considerations referred to above in this
subsection (d).  The amount paid or payable by an indemnified


                                    - 13 -
<PAGE>
 
party as a result of the losses, claims, damages or liabilities (or actions in
respect thereof) referred to above in this subsection (d) shall be deemed to
include any legal or other expenses reasonably incurred by such indemnified
party in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this subsection (d), no Underwriter shall be
required to contribute any amount in excess of the amount by which the total
price at which the applicable Designated Securities underwritten by it and
distributed to the public were offered to the public exceeds the amount of any
damages which such Underwriter has otherwise been required to pay by reason of
such untrue or alleged untrue statement or omission or alleged omission.  No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Securities Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.  The obligations of the
Underwriters of Designated Securities in this subsection (d) to contribute are
several in proportion to their respective underwriting obligations with respect
to such Designated Securities and not joint.

          (e) The obligations of the Corporation and the Guarantor under this
Section 8 shall be in addition to any liability which the Corporation and the
Guarantor may otherwise have and shall extend, upon the same terms and
conditions, to each person, if any, who controls any Underwriter within the
meaning of the Securities Act; and the obligations of the Underwriters under
this Section 8 shall be in addition to any liability which the respective
Underwriters may otherwise have and shall extend, upon the same terms and
conditions, to each officer and director of the Corporation or the Guarantor and
to each person, if any, who controls the Corporation or the Guarantor within the
meaning of the Securities Act.

     9.   (a)  If any Underwriter shall default in its obligation to
purchase the Designated Securities which it has agreed to purchase under the
Pricing Agreement relating to such Designated Securities, the Representatives
may in their discretion arrange for themselves or another party or other parties
to purchase such Designated Securities on the terms contained herein and in the
Pricing Agreement.  If within thirty-six hours after such default by any
Underwriter the Representatives do not arrange for the purchase of such
Designated Securities, then the Corporation shall be entitled to a further
period of thirty-six hours within which to procure another party or other
parties satisfactory to the Representatives to purchase such Designated
Securities on such terms.  In the event that, within the respective prescribed
period, the Representatives notify the Corporation that they have so arranged
for the purchase of such Designated Securities, or the Corporation notifies the
Representatives that it has so arranged for the purchase of such Designated
Securities, the Representatives or the Corporation shall have the right to
postpone the Time of Delivery for such Designated Securities for a period of not
more than seven days, in order to effect whatever changes may thereby be made
necessary in the Registration Statement or the Final


                                    - 14 -
<PAGE>
 
Prospectus as amended or supplemented, or in any other documents or
arrangements, and the Corporation agrees to file promptly any amendments or
supplements to the Registration Statement or the Final Prospectus which in the
opinion of the Representatives may thereby be made necessary.  The term
"Underwriter" as used in this Agreement shall include any person substituted
under this Section 9 with like effect as if such person had originally been a
party to the Pricing Agreement with respect to such Designated Securities.

          (b) If, after giving effect to any arrangements for the purchase of
the Designated Securities of a defaulting Underwriter or Underwriters by the
Representatives and the Corporation as provided in subsection (a) above, the
aggregate principal amount of such Designated Securities which remains
unpurchased does not exceed one-tenth of the aggregate principal amount of the
Designated Securities, then the Corporation shall have the right to require each
non-defaulting Underwriter to purchase the principal amount of Designated
Securities which such Underwriter agreed to purchase under the Pricing Agreement
relating to such Designated Securities and, in addition, to require each non-
defaulting Underwriter to purchase its pro rata share (based on the principal
amount of Designated Securities which such Underwriter agreed to purchase under
such Pricing Agreement) of the Designated Securities of such defaulting
Underwriter or Underwriters for which such arrangements have not been made; but
nothing herein shall relieve a defaulting Underwriter from liability for its
default.

          (c) If, after giving effect to any arrangements for the purchase of
the Designated Securities of a defaulting Underwriter or Underwriters by the
Representatives and the Corporation as provided in subsection (a) above, the
aggregate principal amount of Designated Securities which remains unpurchased
exceeds one-tenth of the aggregate principal amount of the Designated
Securities, as referred to in subsection (b) above, or if the Corporation shall
not exercise the right described in subsection (b) above to require non-
defaulting Underwriters to purchase Designated Securities of a defaulting
Underwriter or Underwriters, then the Pricing Agreement relating to such
Designated Securities shall thereupon terminate, without liability on the part
of any non-defaulting Underwriter or the Corporation, except for the expenses to
be borne by the Corporation and the Underwriters as provided in Section 7 hereof
and the indemnity and contribution agreements in Section 8 hereof; but nothing
herein shall relieve a defaulting Underwriter from liability for its default.

     10.  Any Pricing Agreement may be terminated by the Representatives or
by Underwriters who have agreed to purchase in the aggregate at least 50% of the
principal amount of the applicable Designated Securities by notifying the
Corporation at any time,

          (a) prior to the earliest of (i) 11:00 a.m., New York time, on the day
     following the date of the applicable Pricing Agreement, (ii) the time of
     release by the Representatives for publication of the first newspaper
     advertisement that is

                                    - 15 -
<PAGE>
 
     subsequently published with respect to such Designated Securities or (iii)
     the time when such Designated Securities are first generally offered by the
     Representatives to dealers by letter or telegram;

          (b) at or prior to the Time of Delivery for such Designated Securities
     if, in the judgment of the Representatives or in the judgment of such
     Underwriters, as the case may be, payment for and delivery of such
     Designated Securities is rendered impracticable or inadvisable because (i)
     additional material governmental restrictions, not in force and effect on
     the date hereof or on the date of such Pricing Agreement, shall have been
     imposed upon trading in securities generally or minimum or maximum prices
     shall have been generally established on the New York Stock Exchange, or
     trading in securities generally shall have been suspended on such Exchange
     or a general banking moratorium shall have been established by Federal or
     New York authorities, (ii) any event shall have occurred or shall exist
     which makes untrue or incorrect in any material respect any material
     statement or information contained in the Registration Statement or the
     Final Prospectus or which is not reflected in the Registration Statement or
     the Final Prospectus but should be reflected therein in order to make the
     statements or information contained therein not misleading in any material
     respect or (iii) hostilities involving the United States or other national
     calamity shall have occurred or shall have accelerated to such an extent
     as, in the judgment of the Representatives, to affect adversely the
     marketability of such Designated Securities; or

          (c) at or prior to the Time of Delivery for such Designated
     Securities, if any of the conditions specified in Section 5 hereof shall
     not have been fulfilled when and as required by this Agreement.

     If this Agreement is terminated pursuant to any of the provisions hereof,
the Corporation and the Guarantor shall not be under any liability (except as
otherwise provided herein) to any Underwriter and no Underwriter shall be under
any liability to the Corporation or the Guarantor, except that (a) if this
Agreement is terminated by the Representatives or the Underwriters because of
any failure or refusal on the part of the Corporation or the Guarantor to comply
with the terms or to fulfill any of the conditions of this Agreement, the
Corporation or the Guarantor, as the case may be, will reimburse the
Underwriters for all reasonable out-of-pocket expenses (including the fees and
disbursements of their counsel) incurred by them and (b) no Underwriter who
shall have failed or refused to purchase Designated Securities agreed to be
purchased by it hereunder, without some reason sufficient hereunder to justify
its cancellation or termination of its obligations hereunder, shall be relieved
of liability to the Corporation or the Guarantor or to the other Underwriters
for damages occasioned by its default.


                                    - 16 -
<PAGE>
 
     11.  The respective indemnities, agreements, representations, warranties
and other statements of the Corporation and the Guarantor and the several
Underwriters, as set forth in this Agreement or made by or on behalf of them,
respectively, pursuant to this Agreement, shall remain in full force and effect,
regardless of any termination of this Agreement, any investigation (or any
statement as to the results thereof) made by or on behalf of any Underwriter or
any controlling person of any Underwriter, or the Corporation or the Guarantor,
or any officer or director or controlling person of the Corporation or the
Guarantor, and shall survive delivery of and payment for the Securities.

     12.  If any Pricing Agreement shall be terminated pursuant to Section 9
hereof, neither the Corporation nor the Guarantor shall then be under any
liability to any Underwriter with respect to the Designated Securities covered
by such Pricing Agreement except as provided in Section 7 and Section 8 hereof;
but, if for any other reason Designated Securities are not delivered by or on
behalf of the Corporation as provided herein, the Corporation and the Guarantor
will reimburse the Underwriters through the Representatives for all out-of-
pocket expenses approved in writing by the Representatives, including fees and
disbursements of counsel, reasonably incurred by the Underwriters in making
preparations for the purchase, sale and delivery of such Designated Securities,
but the Corporation and the Guarantor shall then be under no further liability
to any Underwriter with respect to such Designated Securities except as provided
in Section 7 and Section 8 hereof.

     13.  In all dealings hereunder, the Representatives of the Underwriters of
Designated Securities shall act on behalf of each of such Underwriters, and the
parties hereto shall be entitled to act and rely upon any statement, request,
notice or agreement on behalf of any Underwriter made or given by such
Representatives jointly or by such of the Representatives, if any, as may be
designated for such purpose in the Pricing Agreement.

          All statements, requests, notices and agreements hereunder shall be in
writing or by telegram if promptly confirmed in writing, and if to the
Underwriters shall be sufficient in all respects if delivered or sent by
registered mail to the address of the Representatives as set forth in the
Pricing Agreement; and if to the Corporation or the Guarantor shall be
sufficient in all respects if delivered or sent by registered mail to the
address of the Corporation or the Guarantor set forth in the Registration
Statement; Attention:  Vice President and General Counsel; provided, however,
that any notice to an Underwriter pursuant to Section 8(c) hereof shall be
delivered or sent by registered mail to such Underwriter at its address set
forth in its Underwriters' Questionnaire, or telex constituting such
Questionnaire, which address will be supplied to the Corporation by the
Representatives upon request.


                                    - 17 -
<PAGE>
 
     14.  This Agreement and each Pricing Agreement shall be binding upon, and
inure solely to the benefit of, the Underwriters, the Corporation and the
Guarantor and, to the extent provided in Section 8 and Section 11 hereof, the
officers and directors of the Corporation and the Guarantor and each person who
controls the Corporation or the Guarantor or any Underwriter, and their
respective heirs, executors, administrators, successors and assigns, and no
other person shall acquire or have any right under or by virtue of this
Agreement or any such Pricing Agreement.  No purchaser of any of the Securities
from any Underwriter shall be deemed a successor or assign by reason merely of
such purchase.

     15.  Time shall be of the essence of each Pricing Agreement.

     16.  This Agreement and each Pricing Agreement shall be construed in
accordance with the laws of the State of New York.

     17.  This Agreement and each Pricing Agreement may be executed by any one
or more of the parties hereto and thereto in any number of counterparts, each of
which shall be deemed to be an original, but all such respective counterparts
shall together constitute one and the same instrument.

     If the foregoing is in accordance with your understanding, please sign and
return counterparts hereof.

                              Very truly yours,

                              LOCKHEED MARTIN CORPORATION


                              By: /s/ Walter E. Skowronski
                                  ----------------------------
                                  Walter E. Skowronski
                                  Vice President and Treasurer


                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By: /s/ Walter E. Skowronski
                                  ----------------------------
                                  Walter E. Skowronski
                                  Vice President and Treasurer



                                    - 18 -
<PAGE>
 
Accepted as of the date hereof:

GOLDMAN, SACHS & CO.
CS FIRST BOSTON CORPORATION
MERRILL LYNCH, PIERCE, FENNER &
  SMITH INCORPORATED
J.P. MORGAN SECURITIES INC.


     On behalf of itself and each of the
     Underwriters

     GOLDMAN, SACHS & CO.


     /s/ Goldman, Sachs & Co.
     -------------------------






                                    - 19 -
<PAGE>
 
                          LOCKHEED MARTIN CORPORATION
                     LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

                               Pricing Agreement
                               -----------------



_________________________
_________________________
_________________________
c/o _____________________
    _____________________
    _____________________


                                                               ________ __, 199_


Dear Sirs:

     Lockheed Martin Corporation, a Maryland corporation (the "Corporation"),
proposes, subject to the terms and conditions stated herein and in the
Underwriting Agreement dated ________ __, 1996 (the "Underwriting Agreement"),
to issue and sell to the Underwriters named in Schedule I hereto (the
"Underwriters") the Securities specified in Schedule II hereto (the "Designated
Securities"), which Designated Securities shall be fully and unconditionally
guaranteed by Lockheed Martin Tactical Systems, Inc., a New York corporation
("the Guarantor").  Each of the provisions of the Underwriting Agreement is
incorporated herein by reference in its entirety, and shall be deemed to be a
part of this Agreement to the same extent as if such provisions had been set
forth in full herein; and each of the representations and warranties set forth
therein shall be deemed to have been made at and as of the date of this Pricing
Agreement.  Each reference to the Representatives herein and in the provisions
of the Underwriting Agreement so incorporated by reference shall be deemed to
refer to you.  Unless otherwise defined herein, terms defined in the
Underwriting Agreement are used herein as therein defined.  The Representatives
designated to act on behalf of the Representatives and on behalf of each of the
Underwriters of the Designated Securities pursuant to Section 13 of the
Underwriting Agreement and the address of the Representatives referred to in
such Section 13 are set forth at the end of Schedule II hereto.

     An amendment to the Registration Statement, or a supplement to the Final
Prospectus, as the case may be, relating to the Designated Securities, in the
form heretofore delivered to you is now proposed to be filed, or, in the case of
a supplement, proposed to be filed or mailed for filing, with the Commission.

     Subject to the terms and conditions set forth herein and in the
Underwriting Agreement incorporated herein by reference, the Corporation agrees
to issue and sell to each of the Underwriters,
<PAGE>
 
and each of the Underwriters agrees, severally and not jointly, to purchase from
the Corporation, at the time and place and at the purchase price to the
Underwriters set forth in Schedule II hereto, the principal amount of Designated
Securities set forth opposite the name of such Underwriter in Schedule I hereto.

     If the foregoing is in accordance with your understanding, please sign and
return to us counterparts hereof, and upon acceptance hereof by you, on behalf
of each of the Underwriters, this letter and such acceptance hereof, including
the provisions of the Underwriting Agreement incorporated herein by reference,
shall constitute a binding agreement between each of the Underwriters, the
Corporation and the Guarantor.  It is understood that your acceptance of this
letter on behalf of each of the Underwriters is or will be pursuant to the
authority set forth in a form of Agreement among Underwriters, the form of which
shall be submitted to the Corporation for examination, upon request.

                                 Very truly yours,

                                 LOCKHEED MARTIN CORPORATION


                                 By:_______________________________



                                 LOCKHEED MARTIN TACTICAL
                                   SYSTEMS, INC.


                                 By:_______________________________



Accepted as of the date hereof:

_________________________
_________________________
_________________________

     On behalf of itself and each of the
     Underwriters

     _________________________


     ___________________________________
     By:


                                     - 2 -
<PAGE>
 
                                   SCHEDULE I

 
 
                                    Principal Amount of Designated Securities
                                                 to be Purchased
                                    -----------------------------------------
Underwriter
-----------
 
<PAGE>
 
                                  SCHEDULE II



Registration Statement No.:  333-01939
--------------------------            


Title of Designated Securities:
------------------------------ 

     [   %] Guaranteed [Floating Rate] [Zero Coupon] [Notes]
     [Debentures] due


Aggregate principal amount:
-------------------------- 

     $


Price to Public:
--------------- 

     % of the principal amount of the Designated Securities, 
   plus accrued interest from           to           [and 
   accrued amortization, if any, from          to           ]


Purchase Price by Underwriters:
------------------------------ 

     % of the principal amount of the Designated Securities, 
   plus accrued interest from           to           [and 
   accrued amortization, if any, from            to          ]


Specified funds for payment of purchase price:
--------------------------------------------- 

          [New York] Clearing House [Immediately available] funds


Indenture:
--------- 

     Indenture, dated May   , 1996, between the Corporation, the Guarantor and
     First Trust of Illinois, National Association, 
     as Trustee


Maturity:
-------- 



Interest Rate:
------------- 

     [  %] [Zero Coupon] [See Floating Rate Provisions]
<PAGE>
 
 Interest Payment Dates:
 ---------------------- 

     [months and dates, commencing            , 19  ]


Redemption Provisions:
--------------------- 

     [No provisions for redemption]

     [The Designated Securities may be redeemed, otherwise than through the
     sinking fund, in whole or in part at the option of the Corporation, in the
     amount of $         or an integral multiple thereof,

     [on or after               ,     at the following redemption prices
     (expressed in percentages of principal amount).  If [redeemed on or before
                 ,          % and if] redeemed during the 12-month period
     beginning      ,

                                                 Redemption
               Year                                 Price
               ----                              ----------



     and thereafter at 100% of their principal amount, together in each case
     with accrued interest to the redemption date.]

     [on any interest payment date falling on or after         ,
              , at the election of the Corporation, at a redemption price equal
     to the principal amount thereof, plus accrued interest to the date of
     redemption.]

     [Other possible redemption provisions, such as mandatory redemption upon
     occurrence of certain events or redemption for changes in tax law]

     [Restriction on refunding]


Sinking Fund Provisions:
----------------------- 

     [No sinking fund provisions]

     [The Designated Securities are entitled to the benefit of a sinking fund to
     retire $           principal amount of Designated Securities on
     in each of the years        through        at 100% of their principal
     amount plus accrued interest] [, together with [cumulative] [noncumulative]
     redemptions at the option of the Corporation to retire an additional $
     principal amount of Designated Securities in the years        through
     at 100% of their principal amount plus accrued interest.  Any sinking fund
     requirement shall be reduced by the aggregate principal amount of Debt
     Securities delivered to the Trustee


                                     II-2
<PAGE>
 
     by the Corporation at least     days prior to the date on which payments
     are to be made under the sinking fund and designated for that purpose.]

[If Securities are extendable debt Securities, insert--
 ------------------------------------------------------

Extendable provisions:

          Securities are repayable on            ,           
     [insert date and years], at the option of the holders, at 
     their principal amount with accrued interest.  Initial 
     annual interest rate will be    %, and thereafter annual 
     interest rate will be adjusted on               ,
     , and       to a rate not less than    % of the effective 
     annual interest rate on U.S. Treasury obligations with
           -year maturities as of the [insert date 15 days prior 
     to maturity date] prior to such [insert maturity date].]

[If Securities are Floating Rate debt Securities, insert--
 ---------------------------------------------------------

Floating rate provisions:

          Initial annual interest rate will be    % through           
               [and thereafter will be adjusted [monthly] [on 
     each      ,              ,       and                       ] [to 
                    an annual rate of % above the average rate 
                    for      -year [month] [securities]
                    [certificates of deposit] by         and         
                            [insert names of banks].]  [and the 
                    annual interest rate [thereafter] [from        
                            through        ] will be the interest 
                    yield equivalent of the weekly average per 
                    annum market discount rate for        -month 
                    Treasury bills plus
        % of Interest Differential (the excess, if any, of (i) then current
     weekly average per annum secondary market yield for      -month
     certificates of deposit over (ii) then current interest yield equivalent of
     the weekly average per annum market discount rate for      -month Treasury
     bills); [from and thereafter the rate will be the then current interest
     yield equivalent plus    % of Interest Differential].]


Time of Delivery:
---------------- 



Closing Location:
---------------- 

                                     II-3
<PAGE>
 
Names and addresses of Representatives:
-------------------------------------- 

     Designated Representatives:

     Address for Notice, etc.:


[Other Terms]*:



__________________

  *  A description of particular tax, accounting or other unusual features of
     the Securities should be set forth, or referenced to an attached and
     accompanying description, if necessary to the issuer's understanding of the
     transaction contemplated.  Such a description might appropriately be in the
     form in which such features will be described in the Prospectus Supplement
     for the offering.


                                     II-4

<PAGE>
                         LOCKHEED MARTIN CORPORATION 
                     LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

                               Pricing Agreement
                               -----------------



Goldman, Sachs & Co.
CS First Boston Corporation
Merrill Lynch, Pierce, Fenner &
  Smith Incorporated
J.P. Morgan Securities Inc.
c/o Goldman, Sachs & Co.
    85 Broad Street
    New York, New York 10004


                                                                    May 16, 1996


Dear Sirs:

          Lockheed Martin Corporation, a Maryland corporation (the
"Corporation"), proposes, subject to the terms and conditions stated herein and
in the Underwriting Agreement dated May 16, 1996 (the "Underwriting Agreement"),
to issue and sell to the Underwriters named in Schedule I hereto (the
"Underwriters") the Securities specified in Schedule II hereto (the "Designated
Securities"), which Designated Securities shall be fully and unconditionally
guaranteed by Lockheed Martin Tactical Systems, Inc., a New York corporation
("the Guarantor").  Each of the provisions of the Underwriting Agreement is
incorporated herein by reference in its entirety, and shall be deemed to be a
part of this Agreement to the same extent as if such provisions had been set
forth in full herein; and each of the representations and warranties set forth
therein shall be deemed to have been made at and as of the date of this Pricing
Agreement.  Each reference to the Representatives herein and in the provisions
of the Underwriting Agreement so incorporated by reference shall be deemed to
refer to you.  Unless otherwise defined herein, terms defined in the
Underwriting Agreement are used herein as therein defined.  The Representatives
designated to act on behalf of the Representatives and on behalf of each of the
Underwriters of the Designated Securities pursuant to Section 13 of the
Underwriting Agreement and the address of the Representatives referred to in
such Section 13 are set forth at the end of Schedule II hereto.

          An amendment to the Registration Statement, or a supplement to the
Final Prospectus, as the case may be, relating to the Designated Securities, in
the form heretofore delivered to you is now proposed to be filed, or, in the
case of a supplement, proposed to be filed or mailed for filing, with the
Commission.

          Subject to the terms and conditions set forth herein and in
<PAGE>
 
the Underwriting Agreement incorporated herein by reference, the Corporation
agrees to issue and sell to each of the Underwriters, and each of the
Underwriters agrees, severally and not jointly, to purchase from the
Corporation, at the time and place and at the purchase price to the Underwriters
set forth in Schedule II hereto, the principal amount of Designated Securities
set forth opposite the name of such Underwriter in Schedule I hereto.

          If the foregoing is in accordance with your understanding, please sign
and return to us counterparts hereof, and upon acceptance hereof by you, on
behalf of each of the Underwriters, this letter and such acceptance hereof,
including the provisions of the Underwriting Agreement incorporated herein by
reference, shall constitute a binding agreement between each of the
Underwriters, the Corporation and the Guarantor.  It is understood that your
acceptance of this letter on behalf of each of the Underwriters is or will be
pursuant to the authority set forth in a form of Agreement among Underwriters,
the form of which shall be submitted to the Corporation for examination, upon
request.

                                 Very truly yours,

                                 LOCKHEED MARTIN CORPORATION


                                 By: /s/ Walter E. Skowronski
                                     ---------------------------
                                     Walter E. Skowronski
                                     Vice President and Treasurer


                                 LOCKHEED MARTIN TACTICAL
                                   SYSTEMS, INC.


                                 By: /s/ Walter E. Skowronski
                                     ----------------------------
                                     Walter E. Skowronski
                                     Vice President and Treasurer


Accepted as of the date hereof:

GOLDMAN, SACHS & CO.
CS FIRST BOSTON CORPORATION
MERRILL LYNCH, PIERCE, FENNER &
  SMITH INCORPORATED
J.P. MORGAN SECURITIES INC.

     On behalf of itself and each of the
     Underwriters

     GOLDMAN, SACHS & CO.


     /s/ Goldman, Sachs & Co.
     -------------------------

                                     - 2 -
<PAGE>
 
                                  SCHEDULE I
<TABLE>
<CAPTION>
                                      Principal Amount of Designated
                                                Securities
                                              to be Purchased
                               -----------------------------------------------
                               6.55% Notes       6.85% Notes       7.25% Notes
Underwriter                     Due 1999          Due 2001         Due 2006
-----------                  ----------------  ----------------  ---------------
<S>                          <C>               <C>               <C>
Goldman, Sachs & Co.
85 Broad Street
New York, New York 10004      $125,000,000     $187,500,000        $187,500,000

CS First Boston Corporation
Park Avenue Plaza
55 East 52nd Street
New York, New York 10055       125,000,000      187,500,000         187,500,000

Merrill Lynch, Pierce, 
   Fenner & Smith 
   Incorporated
World Financial Center
250 Vesey Street
New York, New York 10281       125,000,000      187,500,000         187,500,000

J.P. Morgan Securities Inc.
60 Wall Street
New York, New York 10260       125,000,000      187,500,000         187,500,000
                              ------------     ------------         -----------
                              $500,000,000     $750,000,000        $750,000,000
                              ============     ============        ============
<CAPTION>  
                                  Principal Amount of Designated Securities
                                               to be Purchased
                                  ------------------------------------------
                            7.65% Debentures  7.75% Debentures 7.20% Debentures
Underwriter                     Due 2016          Due 2026          Due 2036
-----------                 ----------------  ---------------- ----------------
<S>                         <C>               <C>              <C>  
Goldman, Sachs & Co.
85 Broad Street
New York, New York 10004      $150,000,000      $150,000,000     $ 75,000,000
                              
CS First Boston Corporation   
Park Avenue Plaza             
55 East 52nd Street           
New York, New York 10055       150,000,000       150,000,000       75,000,000
                              
Merrill Lynch, Pierce,        
  Fenner & Smith              
  Incorporated                
World Financial Center        
250 Vesey Street              
New York, New York 10281       150,000,000       150,000,000       75,000,000
                              
J.P. Morgan Securities Inc.   
60 Wall Street                
New York, New York 10260       150,000,000       150,000,000       75,000,000
                              ------------      ------------     ------------
                              $600,000,000      $600,000,000     $300,000,000
                              ============      ============     ============
</TABLE>
<PAGE>
 
                                  SCHEDULE II



Registration Statement No.:  333-01939
--------------------------            


Title of Designated Securities:
------------------------------ 

     6.55% Notes Due 1999 (the "3-Year Notes")

     6.85% Notes Due 2001 (the "5-Year Notes")

     7.25% Notes Due 2006 (the "10-Year Notes")

     7.65% Debentures Due 2016 (the "20-Year Debentures")

     7.75% Debentures Due 2026 (the "30-Year Debentures")

     7.20% Debentures Due 2036 (the "40-Year Debentures")
 
 
Aggregate principal amount:
---------------------------
 
     3-Year Notes:                      $500,000,000
 
     5-Year Notes:                      $750,000,000
 
     10-Year Notes:                     $750,000,000
 
     20-Year Debentures:                $600,000,000
 
     30-Year Debentures:                $600,000,000
 
     40-Year Debentures:                $300,000,000
 
 
Price to Public:
---------------------------
 
     3-Year Notes:                     99.952% of the principal amount,
                                       plus accrued interest from May 15, 
                                       1996      
 
     5-Year Notes:                     99.919% of the principal amount,
                                       plus accrued interest from May 15,
                                       1996  
 
     10-Year Notes:                    99.906% of the principal amount,
                                       plus accrued interest from May 15,
                                       1996 
 
     20-Year Debentures:               99.568% of the principal amount,
                                       plus accrued interest from May 1, 
                                       1996 
 
<PAGE>
 
     30-Year Debentures:               99.508% of the principal amount,
                                       plus accrued interest from May 1, 1996
 
     40-Year Debentures:               99.811% of the principal amount,
                                       plus accrued interest from May 1,
                                       1996 
 

Purchase Price by Underwriters:
------------------------------ 
 
     3-Year Notes:                     99.602% of the principal amount,
                                       plus accrued interest from May 15,
                                       1996

     5-Year Notes:                     99.369% of the principal amount,
                                       plus accrued interest from May 15,
                                       1996
 
     10-Year Notes:                    99.256% of the principal amount,
                                       plus accrued interest from May 15,
                                       1996
 
     20-Year Debentures:               98.693% of the principal amount,
                                       plus accrued interest from May 1,
                                       1996
 
     30-Year Debentures:               98.633% of the principal amount,
                                       plus accrued interest from May 1,
                                       1996
 
     40-Year Debentures:               99.136% of the principal amount,
                                       plus accrued interest from May 1,
                                       1996
 

Specified funds for payment of purchase price:
--------------------------------------------- 

     Immediately available funds


Indenture:
--------- 

     Indenture, dated as of May 15, 1996, between the 
     Corporation, the Guarantor and First Trust of Illinois, 
     National Association, as Trustee
 
 
Maturity:
--------
 
     3-Year Notes:          May 15, 1999
 
     5-Year Notes:          May 15, 2001
 
 

                                     II-2
<PAGE>
 
     10-Year Notes:         May 15, 2006
 
     20-Year Debentures:    May 1, 2016
 
     30-Year Debentures:    May 1, 2026
 
     40-Year Debentures:    May 1, 2036
 
Interest Rate:
------------- 

     3-Year Notes:          6.55%

     5-Year Notes:          6.85%

     10-Year Notes:         7.25%

     20-Year Debentures:    7.65%

     30-Year Debentures:    7.75%

     40-Year Debentures:    7.20%
 
 
Interest Payment Dates:
----------------------
 
     3-Year Notes:          May 15 and November 15, commencing
                            November 15, 1996
 
     5-Year Notes:          May 15 and November 15, commencing
                            November 15, 1996
 
     10-Year Notes:         May 15 and November 15, commencing
                            November 15, 1996
 
     20-Year Debentures:    May 1 and November 1, commencing
                            November 1, 1996
 
     30-Year Debentures:    May 1 and November 1, commencing
                            November 1, 1996
 
     40-Year Debentures:    May 1 and November 1, commencing
                            November 1, 1996
 
Redemption Provisions:
--------------------- 

     3-Year Notes:          No provisions for redemption

     5-Year Notes:          No provisions for redemption

     10-Year Notes:         No provisions for redemption

     20-Year Debentures:    No provisions for redemption

                                     II-3
<PAGE>
 
     30-Year Debentures:    No provisions for redemption

     40-Year Debentures:    No provisions for redemption


Sinking Fund Provisions:
----------------------- 

     3-Year Notes:          No sinking fund provisions

     5-Year Notes:          No sinking fund provisions

     10-Year Notes:         No sinking fund provisions

     20-Year Debentures:    No sinking fund provisions

     30-Year Debentures:    No sinking fund provisions

     40-Year Debentures:    No sinking fund provisions


Optional Repayment:
------------------ 

     3-Year Notes:          None

     5-Year Notes:          None

     10-Year Notes:         None

     20-Year Debentures:    None

     30-Year Debentures:    None

     40-Year Debentures:    The 40-Year Debentures may be repaid on May 1, 2008
                            at the option of the registered holders of the 40-
                            Year Debentures at 100% of their principal amount,
                            together with accrued interest to May 1, 2008. In
                            order for a holder to exercise this option, the
                            Corporation must receive at its office or agency in
                            New York, New York, during the period beginning on
                            March 1, 2008 and ending at 5:00 p.m. (New York City
                            time) on April 1, 2008 (or, if April 1, 2008 is not
                            a Business Day, the next succeeding Business Day),
                            the 40-Year Debenture with the form entitled "Option
                            to Elect Repayment on May 1, 2008" on the 40-Year
                            Debenture duly completed. Any such notice received
                            by the Corporation during the period beginning on
                            March 1, 2008 and



                                     II-4
<PAGE>
 
                            ending at 5:00 p.m. (New York City time) on April
                            1, 2008 shall be irrevocable.  The repayment
                            option may be exercised by the holder of a 40-Year
                            Debenture for less than the entire principal
                            amount of the 40-Year Debenture held by each such
                            holder, so long as the principal amount that is to
                            be repaid is equal to $1,000 or an integral
                            multiple of $1,000.  All questions as to the
                            validity, form, eligibility (including time of
                            receipt) and acceptance of any 40-Year Debenture
                            for repayment will be determined by the
                            Corporation, whose determination will be final and
                            binding.


Time of Delivery:
---------------- 

     9:00 a.m., May 21, 1996


Closing Location:
---------------- 

     Cravath, Swaine & Moore
     Worldwide Plaza
     825 Eighth Avenue
     New York, New York 10019


Names and addresses of Underwriters:
----------------------------------- 

     Underwriters:       Goldman, Sachs & Co.
                         CS First Boston Corporation
                         Merrill Lynch, Pierce, Fenner &
                           Smith Incorporated
                         J.P. Morgan Securities Inc.

     Address for Notice, etc.:  c/o Goldman, Sachs & Co.
                                85 Broad Street
                                New York, New York 10004


Other Terms:   The 40-Year Debentures are not subject to defeasance under the
-----------    Indenture until after May 1, 2008.


                                     II-5

<PAGE>
 
================================================================================


                          LOCKHEED MARTIN CORPORATION

                                   as Issuer



                     LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

                                  as Guarantor


                                      AND



                            FIRST TRUST OF ILLINOIS,
                              NATIONAL ASSOCIATION

                                   as Trustee



                              ____________________


                                   INDENTURE


                            Dated as of May 15, 1996



================================================================================
<PAGE>
 
                               TABLE OF CONTENTS
                                   __________

                                                                            Page
                                                                            ----


                                   ARTICLE 1

           DEFINITIONS AND INCORPORATION BY REFERENCE
 
     SECTION 1.01.    Definitions........................................     1
     SECTION 1.02.    Other Definitions..................................     4
     SECTION 1.03.    Incorporation by Reference of TIA..................     5
     SECTION 1.04.    Rules of Construction..............................     5

                                   ARTICLE 2

                                 THE SECURITIES

     SECTION 2.01.    Form and Dating....................................      6
     SECTION 2.02.    Execution and Authentication.......................      8
     SECTION 2.03.    Title, Amount and Terms of Securities..............      9
     SECTION 2.04.    Registrar and Paying Agent.........................     13
     SECTION 2.05.    Paying Agent to Hold Money in Trust................     13
     SECTION 2.06.    Securityholder Lists...............................     13
     SECTION 2.07.    Transfer and Exchange..............................     13
     SECTION 2.08.    Replacement Securities.............................     15
     SECTION 2.09.    Outstanding Securities.............................     16
     SECTION 2.10.    Temporary Securities...............................     17
     SECTION 2.11.    Cancellation.......................................     17
     SECTION 2.12.    Defaulted Interest.................................     17
     SECTION 2.13.    Currency and Manner of Payments in
                      Respect of Securities..............................     17
     SECTION 2.14.    Appointment and Resignation of Currency
                      Determination Agent................................     21

                                   ARTICLE 3

                                   REDEMPTION
 
     SECTION 3.01.    Applicability of this Article......................     22
     SECTION 3.02.    Notices to Trustee.................................     22
     SECTION 3.03.    Selection of Securities to be Redeemed.............     22
     SECTION 3.04.    Notice of Redemption...............................     23
     SECTION 3.05.    Effect of Notice of Redemption.....................     23
     SECTION 3.06.    Deposit of Redemption Price........................     24
     SECTION 3.07.    Securities Redeemed in Part........................     24

                                   ARTICLE 4

                                   COVENANTS

     SECTION 4.01.    Certain Definitions................................     24
     SECTION 4.02.    Payment of Securities..............................     26
 
                                     - i -
<PAGE>
 
     SECTION 4.03.    Limitation on Liens................................     26
     SECTION 4.04.    Limitation on Sale-Leaseback
                      Transactions.......................................     28
     SECTION 4.05.    No Lien Created, etc...............................     29
     SECTION 4.06.    Compliance Certificate.............................     29
     SECTION 4.07.    SEC Reports........................................     29

                                   ARTICLE 5

                             SUCCESSOR CORPORATION

     SECTION 5.01.    When the Corporation or the Guarantor 
                      May Merge, etc.....................................     29
     SECTION 5.02.    When Securities Must be Secured....................     30

                                   ARTICLE 6

                             DEFAULTS AND REMEDIES

     SECTION 6.01.    Events of Default..................................     31
     SECTION 6.02.    Acceleration.......................................     32
     SECTION 6.03.    Other Remedies.....................................     32
     SECTION 6.04.    Waiver of Past Defaults............................     33
     SECTION 6.05.    Control by Majority................................     33
     SECTION 6.06.    Limitation on Suits................................     33
     SECTION 6.07.    Rights of Holders to Receive Payment...............     33
     SECTION 6.08.    Collection Suit by Trustee.........................     34
     SECTION 6.09.    Trustee May File Proofs of Claim...................     34
     SECTION 6.10.    Priorities.........................................     34
     SECTION 6.11.    Undertaking for Costs..............................     34

                                   ARTICLE 7

                                    TRUSTEE
 
     SECTION 7.01.    Duties of Trustee..................................    35
     SECTION 7.02.    Rights of Trustee..................................    36
     SECTION 7.03.    Individual Rights of Trustee, etc..................    36
     SECTION 7.04.    Trustee's Disclaimer...............................    36
     SECTION 7.05.    Notice of Defaults.................................    36
     SECTION 7.06.    Reports by Trustee to Holders......................    36
     SECTION 7.07.    Compensation and Indemnity.........................    37
     SECTION 7.08.    Replacement of Trustee.............................    37
     SECTION 7.09.    Successor Trustee by Merger, etc...................    38
     SECTION 7.10.    Eligibility; Disqualification......................    39
     SECTION 7.11.    Preferential Collection of Claims
                      Against  Corporation...............................    39

                                   ARTICLE 8

                     SATISFACTION, DISCHARGE AND DEFEASANCE
 
     SECTION 8.01.    Satisfaction and Discharge Under Limited
                      Circumstances......................................    39
 

                                    - ii -
<PAGE>
 
     SECTION 8.02.    Satisfaction and Discharge of Indenture............    40
     SECTION 8.03.    Defeasance of Certain Obligations..................    41
     SECTION 8.04.    Application of Trust Money.........................    43
     SECTION 8.05.    Repayment to Corporation...........................    43

                                   ARTICLE 9

                      AMENDMENTS, SUPPLEMENTS AND WAIVERS

     SECTION 9.01.    Without Consent of Holders.........................    43
     SECTION 9.02.    With Consent of Holders............................    44
     SECTION 9.03.    Compliance with Trust Indenture Act of
                      1939...............................................    45
     SECTION 9.04.    Revocation and Effect of Consents..................    45
     SECTION 9.05.    Notation on or Exchange of Securities..............    45
     SECTION 9.06.    Trustee to Sign Amendments, etc....................    45

                                   ARTICLE 10

                            GUARANTEE OF SECURITIES

     SECTION 10.01.   Unconditional Guarantee............................    46
     SECTION 10.02.   Execution and Delivery of Guarantees...............    47
     SECTION 10.03.   Form of Guarantee..................................    47

                                   ARTICLE 11

                                 MISCELLANEOUS
 
     SECTION 11.01.   TIA Controls.......................................    48
     SECTION 11.02    Notices............................................    49
     SECTION 11.03.   Communication by Holders with Other
                      Holders............................................    49
     SECTION 11.04.   Certificate and Opinion as to Conditions
                      Precedent..........................................    49
     SECTION 11.05.   Statements Required in Certificate or
                      Opinion............................................    50
     SECTION 11.06.   When Treasury Securities Disregarded...............    50
     SECTION 11.07.   Rules by Trustee, Paying Agent,
                      Registrar..........................................    50
     SECTION 11.08.   Legal Holidays.....................................    50
     SECTION 11.09.   Governing Law......................................    51
     SECTION 11.10.   No Adverse Interpretation of Other
                      Agreements.........................................    51
     SECTION 11.11.   No Recourse Against Others.........................    51
     SECTION 11.12.   Securities in a Foreign Currency...................    51
     SECTION 11.13.   Judgment Currency..................................    51
     SECTION 11.14.   Successors.........................................    52
     SECTION 11.15.   Duplicate Originals................................    52
     SECTION 11.16.   Acts of Holders; Record Dates......................    52
---------------

NOTE:  This Table of Contents shall not, for any purpose, be
       deemed to be a part of the Indenture.

                                    - iii -
<PAGE>
 
     INDENTURE dated as of May 15, 1996, among Lockheed Martin Corporation, a
Maryland corporation (the "Corporation"), Lockheed Martin Tactical Systems,
Inc., a New York corporation (the "Guarantor"), and First Trust of Illinois,
National Association, a national banking association (the "Trustee").

     Each party agrees as follows for the benefit of the other party and, as to
each series of Securities, for the equal and ratable benefit of the Holders of
that series of the Corporation's Securities issued pursuant to this Indenture:


                                   ARTICLE 1

                   DEFINITIONS AND INCORPORATION BY REFERENCE

     SECTION 1.01.  Definitions.

     "Agent" means any Registrar, Paying Agent or co-registrar.

     "Board of Directors" means the Board of Directors, or any duly appointed
committee of the Board of Directors, of the Corporation or the Guarantor, as the
case may be.

     "Board Resolution" means a resolution of the Board of Directors or of a
committee or person to which or to whom the Board of Directors has properly
delegated the appropriate authority, a copy of which has been certified by the
Secretary or an Assistant Secretary of the Corporation or the Guarantor, as the
case may be, to have been duly adopted by the Board of Directors or such
committee or person and to be in full force and effect on the date of such
certification and delivered to the Trustee.

     "Business Day," when used with respect to any particular Place of Payment,
means each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on
which banking institutions in that Place of Payment are authorized or obligated
by law to close, and shall otherwise mean each Monday, Tuesday, Wednesday,
Thursday and Friday which is not a day on which banking institutions, at the
place where any specified act pursuant to this Indenture is to occur, are
authorized or obligated by law to close.

     "Conversion Event" means, in the good faith judgment of the Corporation,
the unavailability of any Foreign Currency or currency unit, due to the
imposition of exchange controls or other circumstances beyond the control of the
Corporation.

     "Corporation" means the party named as such in this Indenture until a
successor replaces it and thereafter means the successor.

     "Currency Determination Agent," with respect to Securities of any series,
means a New York Clearing House bank designated pursuant to Section 2.03 or
Section 2.14.

     "Default" means any event which is, or after notice or passage of time or
both would be, an Event of Default.
<PAGE>
 
     "Depositary" means, with respect to the Securities of any series issuable
or issued in whole or in part in the form of one or more Global Securities, the
party designated as Depositary by the Corporation pursuant to Section 2.03 until
a successor Depositary shall have become such pursuant to the applicable
provisions hereof, and thereafter "Depositary" shall mean or include each party
who is then a Depositary hereunder, and if at any time there is more than one
such party, "Depositary" as used with respect to the Securities on any such
series shall mean the Depositary with respect to the Securities of that series.

     "Discounted Security" means any Security which provides for an amount
(excluding any amounts attributable to accrued but unpaid interest) less than
its principal amount to be due and payable upon a declaration of acceleration of
the maturity of the Security pursuant to Section 6.02.

     "Dollars" and the sign "$" mean the currency of the United States of
America as at the time of payment is legal tender for the payment of public and
private debts.

     "ECU" means the European Currency Unit as defined and revised from time to
time by the Council of the European Communities.

     "Exchange Act" means the Securities Exchange Act of 1934, as it may be
amended from time to time.

     "Exchange Rate Officers' Certificate" means a certificate or facsimile
thereof setting forth (i) the applicable Market Exchange Rate and (ii) the
Dollar, Foreign Currency or currency unit amounts of principal and interest, if
any (on an aggregate basis and on the basis of a Security having the
denomination principal amount determined in accordance with Section 2.03 in the
relevant currency or currency unit), payable with respect to a Security of any
series on the basis of such Market Exchange Rate, signed by any Officer of the
Corporation.

     "Foreign Currency" means a currency issued by the government of any country
other than the United States of America.

     "Global Security" means a Security evidencing all or a part of a series of
Securities, issued to the Depositary for such series in accordance with Section
2.01, and bearing the legend prescribed in Section 2.01.

     "Guarantee" means any guarantee of the Guarantor endorsed on a Security
authenticated and delivered pursuant to this Indenture and shall include the
guarantee set forth in Article 10.

     "Guarantor" means the party named as such in this Indenture until a
successor replaces it and thereafter means the successor.

     "Holder" or "Securityholder" means the person in whose name a Security is
registered on the Registrar's books.

                                    - 2 - 
<PAGE>
 
     "Indenture" means this Indenture as amended or supplemented from time to
time.

     "Market Exchange Rate" means (i) for any conversion involving a currency
unit on the one hand and Dollars or any Foreign Currency on the other, the
exchange rate between the relevant currency unit and Dollars or such Foreign
Currency calculated by the method specified pursuant to Section 2.03 for the
Securities of the relevant series, (ii) for any conversion of Dollars into any
Foreign Currency, the noon (New York City time) buying rate for such Foreign
Currency for cable transfers quoted in  New York City as certified for customs
purposes by the Federal Reserve Bank of New York, (iii) for any conversion of
one Foreign Currency into Dollars or another Foreign Currency, the spot rate at
noon local time in the relevant market at which, in accordance with normal
banking procedures, the Dollars or Foreign Currency into which conversion is
being made could be purchased with the Foreign Currency from which conversion is
being made from major banks located in either New York City, London or any other
principal market for Dollars or such purchased Foreign Currency, in each case
determined by the applicable Currency Determination Agent in its sole discretion
and without liability on its part.  In the event of the unavailability of any of
the exchange rates provided for in the foregoing clauses (i), (ii) and (iii) the
Currency Determination Agent shall use, in its sole discretion and without
liability on its part, such quotation of the Federal Reserve Bank of New York as
of the most recent available date, or quotations from one or more major banks in
New York City, London or any other principal market for such currency or
currency unit in question, or such other quotations as the Currency
Determination Agent shall deem appropriate.  Unless otherwise specified by the
Currency Determination Agent, if there is more than one market for dealing in
any currency or currency unit by reason of foreign exchange regulations or
otherwise, the market to be used with respect to such currency or currency unit
shall be that upon which a nonresident issuer of securities designated in such
currency or currency unit would purchase such currency or currency unit in order
to make payments with respect to such securities.  For purposes of this
definition, a "nonresident issuer" shall mean an issuer that is not a resident
of the country or countries that issue such currency or whose currencies are
included in such currency unit.

     "Officer" means the Chairman of the Board, the Chief Executive Officer, the
President, the Chief Operating Officer, any Executive Vice President, Senior
Vice President or Vice President, the Treasurer or the Secretary of the
Corporation or the Guarantor, as the case may be.

     "Officers' Certificate" means a certificate signed by two Officers or by an
Officer and an Assistant Treasurer or Assistant Secretary of the Corporation or
the Guarantor, as the case may be.


                                    - 3 - 
<PAGE>
 
     "Opinion of Counsel" means a written opinion from legal counsel who is
acceptable to the Trustee.  The counsel may be an employee of or counsel to the
Corporation, the Guarantor or the Trustee.

     "Place of Payment" means, when used with respect to the Securities of any
particular series, the place or places where the principal of and interest, if
any, on the Securities of that series are payable, as contemplated by Section
2.03.

     "principal" of a Security means the principal of the Security plus, when
appropriate, the premium, if any, on the Security.

     "SEC" means the Securities and Exchange Commission.

     "Securities" means the securities issued pursuant to this Indenture from
time to time, as such securities may be amended or supplemented from time to
time.

     "series" when used with respect to the Securities means all Securities
bearing the same title and initially authorized by the same Board Resolution.

     "TIA" means the Trust Indenture Act of 1939, as in effect (unless otherwise
stated herein) on the date of this Indenture.

     "Trustee" means the party named as such in this Indenture until a successor
replaces it and thereafter means the successor.  The term "Trustee" includes any
additional Trustee appointed pursuant to Section 2.03 or Section 7.08 but, if at
any time there is more than one Trustee, the term "Trustee" as used with respect
to Securities of any series shall mean the Trustee with respect to Securities of
that series.

     "Trust Officer" means a Vice President or any other officer, assistant
officer or employee of the Trustee assigned by the Trustee to administer its
corporate trust matters.

     "Uniform Commercial Code" means the Maryland Uniform Commercial Code.

 
     SECTION 1.02.   Other Definitions.

<TABLE> 
<CAPTION> 

                                                              Defined in
     Term                                                      Section
     ----                                                     ----------
     <S>                                                      <C>  
     "Attributable Debt"...................................       4.01
     "Bankruptcy Law"......................................       6.01
     "Component Currency"..................................       2.13
     "Consolidated Net Tangible Assets"....................       4.01
     "Conversion Date".....................................       2.13
     "Custodian"...........................................       6.01
     "Debt"................................................       4.01
     "Dollar Equivalent of the Currency Unit"..............       2.13
     "Dollar Equivalent of the Foreign Currency"...........       2.13
</TABLE>

                                     - 4 -
<PAGE>
 
<TABLE>
<CAPTION> 
     <S>                                                       <C>
     "Election Date".......................................       2.13
     "Event of Default"....................................       6.01
     "Judgment Date".......................................      11.13
     "Legal Holiday".......................................      11.08
     "Lien"................................................       4.01
     "Long-Term Debt"......................................       4.01
     "Paying Agent"........................................       2.04
     "Principal Property"..................................       4.01
     "Registrar"...........................................       2.04
     "Restricted Property".................................       4.01
     "Restricted Subsidiary"...............................       4.01
     "Sale-Leaseback Transaction"..........................       4.01
     "Specified Amount"....................................       2.13
     "Subsidiary"..........................................       4.01
     "Substitute Date".....................................      11.13
     "United States".......................................       4.01
     "U.S. Government Obligations".........................       8.02
     "Valuation Date"......................................       2.13
     "Voting Stock"........................................       4.01
</TABLE>

     SECTION 1.03.  Incorporation by Reference of TIA.  Whenever this Indenture
refers to a provision of the TIA, the provision is incorporated by reference in
and made a part of this Indenture.  The following TIA terms used in this
Indenture have the following meanings:

     "Commission" means the SEC.

     "indenture securities" means the Securities.

     "indenture security holder" means a Securityholder.

     "indenture to be qualified" means this Indenture.

     "indenture trustee" or "institutional trustee" means the Trustee.

     "obligor" on the indenture securities means the Corporation.

     All other TIA terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule have the
meanings assigned to them.

     SECTION 1.04.  Rules of Construction.  Unless the context otherwise
requires:

          (1) a term has the meaning assigned to it;

          (2) an accounting term not otherwise defined has the meaning assigned
     to it in accordance with generally accepted accounting principles;

          (3)  "or" is not exclusive;


                                     - 5 -
<PAGE>
 
          (4) words in the singular include the plural, and in the plural
     include the singular;

          (5) any gender used in this Indenture shall be deemed to include the
     neuter, masculine or feminine gender; and

          (6) provisions apply to successive events and transactions.


                                   ARTICLE 2

                                 THE SECURITIES

     SECTION 2.01.  Form and Dating.  The Securities shall be issued
substantially in the form or forms (including global form) as shall be
established by or pursuant to a Board Resolution or Resolutions or any
supplemental indenture, in each case with such appropriate insertions,
omissions, substitutions or other variations as are required or permitted by
this Indenture.  The Securities may have notations, legends or endorsements
required by law, stock exchange rule or usage.  Each Security shall be dated the
date of its authentication.

     The Guarantees by the Guarantor to be endorsed on the Securities shall be
substantially in the form set forth in Section 10.03, or as shall be established
by or pursuant to a Board Resolution or Resolutions or any supplemental
indenture, in each case with such appropriate insertions, omissions,
substitutions or other variations as are required or permitted by this
Indenture. The Guarantees may have notations, legends or endorsements required
by law, stock exchange rule or usage.

     Notwithstanding the foregoing, if any Security of a series is issuable in
the form of a Global Security or Securities, each such Global Security may
provide that it shall represent the aggregate amount of Securities outstanding
under the series from time to time endorsed thereon and also may provide that
the aggregate amount of Securities outstanding under the series represented
thereby may from time to time be reduced to reflect exchanges.  Any endorsement
of a Global Security to reflect the amount of Securities outstanding under the
series represented thereby shall be made by the Trustee in accordance with the
instructions of the Corporation and in such manner as shall be specified on such
Global Security.  Any instructions by the Corporation or the Guarantor with
respect to a Global Security, after its initial issuance, shall be in writing
but need not comply with Section 11.04.

     Before the first delivery of a Security of any series to the Trustee for
authentication, the Corporation shall deliver to the Trustee the following:


                                     - 6 -
<PAGE>
 
          (1) the Board Resolution or Resolutions by or pursuant to which the
     forms and terms of the Security and the Guarantee have been approved;

          (2) Officers' Certificates of the Corporation and the Guarantor dated
     the date of delivery stating that all conditions precedent provided for in
     this Indenture relating to the authentication and delivery of Securities in
     that series and the guarantee of such Securities by the Guarantor have been
     complied with and directing the Trustee to authenticate and deliver the
     Securities to or upon written order of the Corporation; and

          (3) Opinions of Counsel stating that all conditions precedent provided
     for in this Indenture relating to the authentication and delivery of
     Securities of that series and the guarantee of such Securities by the
     Guarantor have been complied with, the form and terms of the series have
     been established by or pursuant to a Board Resolution or Resolutions in
     conformity with this Indenture, the form and terms of the guarantee of such
     Securities by the Guarantor have been established by or pursuant to a Board
     Resolution or Resolutions in conformity with this Indenture, and that
     Securities and Guarantees in such form when completed by appropriate
     insertions and executed by the Corporation and the Guarantor and delivered
     by the Corporation to the Trustee for authentication in accordance with
     this Indenture, authenticated and delivered by the Trustee in accordance
     with this Indenture within the authorization as to aggregate principal
     amount established from time to time by the Board of Directors and sold in
     the manner specified in such Opinions of Counsel will be the legal, valid
     and binding obligations of the Corporation and the Guarantor, respectively,
     entitled to the benefits of this Indenture, subject to applicable
     bankruptcy, reorganization, insolvency and other similar laws generally
     affecting creditors' rights and to general equity principles, and to such
     other qualifications as such counsel shall conclude do not materially
     affect the rights of Holders of Securities of that series or that are
     customarily included in similar opinions by lawyers experienced in such
     matters.

     Notwithstanding the foregoing, if the Corporation shall establish pursuant
to Section 2.03 that the Securities of a series are to be issued in whole or in
part in the form of one or more Global Securities, then the Corporation and the
Guarantor shall execute and the Trustee shall, in accordance with this Section,
Section 2.02 and the authentication order of the Corporation with respect to
such series, authenticate and deliver one or more Global Securities in temporary
or permanent form that shall (a) represent and be denominated in an aggregate
amount equal to the aggregate principal amount of the Securities of such series
to be represented by one or more Global Securities, (b) be registered in the
name of the Depositary for such Global Security or  Securities or the nominee of
such Depositary, (c) be delivered by the Trustee to such

                                     - 7 -
<PAGE>
 
Depositary or pursuant to such Depositary's instruction; and (d) bear a legend
substantially to the following effect:  "Unless and until it is exchanged in
whole or in part for Securities in definitive form, this Security may not be
transferred except as a whole by the Depositary to a nominee of the Depositary
or by a nominee of the Depositary to the Depositary or another nominee of the
Depositary or by the Depositary or any nominee to a successor Depositary or a
nominee of any successor Depositary."

     SECTION 2.02.  Execution and Authentication.  Two Officers shall sign the
Securities for the Corporation by manual or facsimile signature.  Two Officers
shall sign the Guarantees for the Guarantor by manual or facsimile signature.
The Corporation's and the Guarantor's seals shall be impressed, affixed,
imprinted or reproduced on the Securities.

     If an Officer whose signature is on a Security or a Guarantee no longer
holds that office at the time the Trustee authenticates the Security, the
Security or the Guarantee, as the case may be, shall be valid nevertheless.

     A Security and the related Guarantee shall not be valid until the Trustee
manually signs the certificate of authentication on the Security.  The signature
shall be conclusive evidence that the Security has been authenticated under this
Indenture.

     Notwithstanding the provisions of Section 2.03 and of the preceding
paragraphs, if all Securities of a series are not to be originally issued at one
time (including, for example, a series constituting a medium-term note program),
it shall not be necessary to deliver the Officers' Certificate otherwise
required pursuant to Section 2.01 or the Opinions of Counsel otherwise required
pursuant to such preceding paragraphs at or prior to the time of authentication
of each Security of such series if such documents are delivered at or prior to
the time of authentication upon original issuance of the first Security of such
series.  In such case the Trustee may conclusively rely on the foregoing
documents and opinions delivered pursuant to Section 2.01 and Section 2.03, and
this Section, as applicable (unless revoked by superseding comparable documents
or opinions), as to the matters set forth therein.

     Notwithstanding the foregoing, if any Security shall have been duly
authenticated and delivered hereunder but never issued and sold by the
Corporation, and the Corporation shall deliver such Security to the Trustee for
cancellation as provided in Section 2.11 together with a written statement
(which need not comply with Section 2.01 and need not be accompanied by an
Opinion of Counsel) stating that such Security has never been issued and sold by
the Corporation, for all purposes of this Indenture such Security shall be
deemed never to have been authenticated and delivered hereunder and shall never
be entitled to the benefits of this Indenture.


                                     - 8 -
<PAGE>
 
     If any Security of a series shall be represented by a Global Security,
then, for purposes of this Section and Section 2.10, the notation of the record
owners' interest therein upon original issuance of such Security shall be deemed
to be delivered in connection with the original issuance of each beneficial
owner's interest in such Global Security.

     The Trustee's certificate of authentication on all Securities shall be in
substantially the following form:

          This is one of the Securities of the series designated herein and
     referred to in the within-mentioned Indenture.

     Date:                    [Name of Trustee], as Trustee


                              By___________________________

     The Trustee may appoint an authenticating agent acceptable to the
Corporation to authenticate Securities.  An authenticating agent may
authenticate Securities whenever the Trustee may do so.  Each reference in this
Indenture to authentication by the Trustee includes authentication by such
agent.  An authenticating agent has the same rights as an Agent to deal with the
Corporation.

     If at any time there shall be an authenticating agent appointed with
respect to any series of Securities, then the Trustee's certificate of
authentication to be borne by the Securities of each such series shall be
substantially as follows:

          This is one of the Securities of the series designated herein and
     referred to in the within-mentioned Indenture.

     Date:                    [Name of Trustee], as Trustee


                              By:___________________________
                                 as Authenticating Agent


                              By:___________________________
                                 Authorized Officer

     SECTION 2.03.  Title, Amount and Terms of Securities.  The principal amount
of Securities that may be authenticated and delivered and outstanding under this
Indenture is not limited.  The Securities may be issued in a total principal
amount up to that authorized from time to time by or pursuant to relevant Board
Resolutions.

     The Securities may be issued in one or more series, each of which shall be
issued pursuant to a Board Resolution or Resolutions


                                     - 9 -
<PAGE>
 
of the Corporation or the Guarantor, as appropriate, which shall specify:

          (1) the title of the Securities of that series (which shall
     distinguish the Securities of that series from Securities of all other
     series);

          (2) any limit on the aggregate principal amount of the Securities of
     that series that may be authenticated and delivered under this Indenture
     (except for Securities authenticated and delivered upon registration or
     transfer of, in exchange for or in lieu of other Securities of that series
     pursuant to Sections 2.07, 2.08 or 3.07);

          (3) the date or dates (or the manner of determining the same) on which
     the principal of the Securities of that series is payable (which, if so
     provided in the Board Resolution or Resolutions, may be determined by the
     Corporation from time to time and set forth in the Securities of that
     series issued from time to time);

          (4) the rate or rates, or the method to be used in ascertaining the
     rate or rates, at which the Securities of that series shall bear interest,
     if any, the basis upon which interest shall be calculated if other than
     that of a 360-day year of 12 30-day months, the date or dates from which
     such interest shall accrue (which, in either case or both, if so provided
     in the Board Resolution or Resolutions, may be determined by the
     Corporation from time to time and set forth in the Securities of that
     series issued from time to time), the interest payment dates on which such
     interest shall be payable (or the manner of determining the same) and the
     record date for the interest payable on any interest payment date;

          (5) if the trustee of that series is other than the Trustee initially
     named in this Indenture or any successor thereto, the trustee of that
     series;

          (6) the place or places where the principal of and interest, if any,
     on Securities of that series shall be payable;

          (7) the period or periods within which, the price or prices at which,
     the currency or currency unit in which, and the terms and conditions on
     which Securities of that series may be redeemed or converted into another
     Security, in whole or in part, at the option of the Corporation;

          (8) the obligation, if any, of the Corporation to redeem or purchase
     Securities of that series pursuant to any sinking fund or analogous
     provisions or at the option of Holders of Securities of that series (or to
     convert such Securities into other Securities at the option of the Holder),
     and the period or periods within which, the price or prices at which, the


                                    - 10 -
<PAGE>
 
     currency or currency unit in which, and the terms and conditions upon which
     Securities of that series shall be redeemed or purchased, in whole or in
     part, pursuant to such obligation;

          (9) if denominated in Dollars and in denominations other than
     denominations of $1,000 and any multiple of $1,000, the denominations in
     which Securities of that series shall be issuable;

          (10) if denominated in other than Dollars, the currency or currencies,
     including composite currencies, in which the Securities of that series are
     denominated and the denominations in which Securities of that series shall
     be issuable;

          (11) if the principal of and interest, if any, on the Securities of
     that series are to be payable, at the election of the Corporation or a
     Holder thereof, in a currency or currency unit other than that in which the
     Securities are denominated or stated to be payable, in accordance with
     provisions in addition to or in lieu of or in accordance with the
     provisions of Section 2.13, the period or periods within which (including
     the Election Date), and the terms and conditions upon which, such election
     may be made, and the time and manner of determining the exchange rate
     between the currency or currency unit in which the Securities are
     denominated or stated to be payable and the currency or currency unit in
     which the Securities are to be so payable;

          (12) the index, if any, used to determine the amount of payments of
     principal of or interest, if any, on the Securities of that series;

          (13) if the amount of payments of the principal of and interest, if
     any, on the Securities of that series may be determined with reference to
     an index based on a currency or currencies other than that in which the
     Securities of that series are denominated, the manner in which such amounts
     shall be determined;

          (14) if other than the full principal amount, the portion of the
     principal amount of Securities of that series which shall be payable upon a
     declaration of acceleration of the maturity pursuant to Section 6.02;

          (15) if convertible into Securities of another series, the terms upon
     which the Securities of that series will be convertible into Securities of
     such other series;

          (16) the right, if any, of the Corporation to redeem all or any part
     of the Securities of that series before maturity and the period or periods
     within which, the price or prices at


                                    - 11 -
<PAGE>
 
     which and the terms and conditions upon which Securities of that series may
     be redeemed;

          (17) the provisions, if any, restricting defeasance of the Securities
     of that series;

          (18) if other than or in addition to the events specified in Section
     6.01, events of default with respect to the Securities of that series;

          (19) if the Securities of that series are to be issued in whole or in
     part in the form of one or more Global Securities, the Depositary for such
     Global Security or  Securities and whether beneficial owners of interests
     in any such Global Securities may exchange such interests for other
     Securities of such series in the manner provided in Section 2.07, and the
     manner and the circumstances under which and the place or places where any
     such exchanges may occur if other than in the manner provided in Section
     2.07, and any other terms of the series relating to the global nature of
     the Securities of such series and the exchange, registration or transfer
     thereof and the payment of any principal thereof or interest, if any,
     thereon;

          (20) the designation of the original Currency Determination Agent, if
     any, with respect to the Securities of that series;

          (21) the Guarantee of the Securities of such series pursuant to
     Article 10; and

          (22) any other terms of or relating to the Securities of that series
     or the related Guarantees (which terms shall not be inconsistent with the
     provisions of this Indenture).

     References herein to currency shall include ECUs, unless otherwise
specified or unless the context otherwise requires.

     All Securities of any particular series shall be identical as to currency
of denomination and otherwise shall be substantially identical except as to
denomination and except as may otherwise be provided in or pursuant to the
relevant Board Resolution or Resolutions.

     The Trustee need not authenticate the Securities in any series if their
terms impose on the Trustee duties in addition to those imposed on the Trustee
by this Indenture.  If the Trustee does authenticate any such Securities, the
authentication will evidence the Trustee's agreement to comply with any such
additional duties.

     Each Depositary designated pursuant to this Section 2.03 for a Global
Security in registered form shall, if required, at the time of its designation
and at all times while it serves as a


                                    - 12 -
<PAGE>
 
Depositary, be a clearing agency registered under the Exchange Act and any other
applicable statute or regulation.

     SECTION 2.04.  Registrar and Paying Agent.  The Corporation shall maintain
an office or agency where Securities may be presented for registration of
transfer or for exchange ("Registrar") and an office or agency where Securities
may be presented for payment ("Paying Agent").  The Registrar shall keep a
register of the Securities and of their transfer and exchange.  The Corporation
may have one or more co-registrars and one or more additional paying agents.
The term "Paying Agent" includes any additional paying agent.  There may be
separate Registrars and Paying Agents for different series of Securities.

     The Corporation shall enter into an appropriate agency agreement with any
Registrar, Paying Agent or co-registrar not a party to this Indenture.  The
agreement shall implement the provisions of this Indenture that relate to such
Agent.  The Corporation shall notify the Trustee of the name and address of any
such Agent.  If the Corporation fails to maintain a Registrar or Paying Agent,
the Trustee shall act as such.

     The Corporation initially appoints the Trustee as Registrar and Paying
Agent.

     SECTION 2.05.  Paying Agent to Hold Money in Trust.  Each Paying Agent for
any series of Securities shall hold in trust for the benefit of Holders of
Securities of the same series or the Trustee all money held by the Paying Agent
for the payment of principal of or interest, if any, on such Securities and
shall notify the Trustee of any default by the Corporation in making such
payment.  If the Corporation or a Subsidiary acts as Paying Agent with respect
to a series of Securities, it shall segregate the money for that series and hold
it as a separate trust fund.  The Corporation at any time may require a Paying
Agent to pay all money held by it to the Trustee.  Upon doing so the Paying
Agent shall have no further liability for the money.

     SECTION 2.06.  Securityholder Lists.  For each series of Securities, the
Trustee shall preserve in as current a form as is reasonably practicable the
most recent list available to it of the names and addresses of Holders of
Securities of that series.  If the Trustee is not the Registrar, the Corporation
shall furnish or cause to be furnished to the Trustee on or before each interest
payment date for each series of Securities and at such other times as the
Trustee may request in writing a list in such form and as of such date as the
Trustee may reasonably require of the names and addresses of Holders of
Securities of that series.

     SECTION 2.07.  Transfer and Exchange.  Where a Security (other than a
Global Security except as set forth herein) is presented to the Registrar or a
co-registrar with a request to register a transfer, the Registrar shall register
the transfer as requested if the requirements of Section 8-401(1) of the Uniform
Commercial Code

                                    - 13 -
<PAGE>
 
(or any successor provision) are met.  Where Securities (other than a Global
Security except as set forth herein) of any series are presented to the
Registrar or a co-registrar with a request to exchange them for an equal
principal amount of Securities of other denominations of the same series with
identical terms as the Securities exchanged, the Registrar shall make the
exchange as requested if the same requirements are met.  To permit transfers and
exchanges, the Trustee shall authenticate Securities at the Registrar's request.
The Corporation may charge a reasonable fee for any transfer or exchange, but
not for any exchange pursuant to Section 2.10, 3.07 or 9.05.  The Corporation
shall not be required to make transfers or exchanges of Securities of any series
for a period of 15 days before a selection of Securities of the same series to
be redeemed or before an interest payment.

     Notwithstanding any other provision of this Section, unless and until it is
exchanged in whole or in part for Securities in definitive form, a Global
Security representing all or a portion of the Securities of a series may not be
transferred except as a whole by the Depositary for such series to a nominee of
such Depositary or by a nominee of such Depositary to such Depositary or another
nominee of such Depositary or by such Depositary or any such nominee to a
successor Depositary for such series or a nominee of such successor Depositary.

     None of the Corporation, the Guarantor, the Trustee, the Paying Agent, the
Registrar or any co-registrar shall have any responsibility or liability for any
aspect of the records relating to or payments made on account of beneficial
ownership interests of a Global Security or for maintaining, supervising or
reviewing any records relating to such beneficial ownership interests.

     If at any time the Depositary for the Securities of a series notifies the
Corporation that it is unwilling or unable to continue as Depositary for the
Securities of such series or if at any time the Depositary for the Securities of
such series shall no longer be eligible under Section 2.03, the Corporation
shall appoint a successor Depositary with respect to the Securities of such
series.  If a successor Depositary for the Securities of such series is not
appointed by the Corporation within 90 days after the Corporation receives such
notice or becomes aware of such ineligibility, the Corporation's election
pursuant to Section 2.03(19) shall no longer be effective with respect to the
Securities of such series and the Corporation will execute, and the Trustee,
upon receipt of an order of the Corporation for the authentication and delivery
of definitive Securities of such series, will authenticate and deliver
Securities of such series in definitive form in an aggregate principal amount
equal to the principal amount of the Global Security or Securities representing
such series in exchange for such Global Security or Securities.

     The Corporation may at any time and in its sole discretion determine that
the Securities of any series issued in the form of one or more Global Securities
shall no longer be represented by


                                    - 14 -
<PAGE>
 
such Global Security or Securities.  In such event the Corporation will execute,
and the Trustee, upon receipt of an order of the Corporation for the
authentication and delivery of definitive Securities of such series, will
authenticate and deliver Securities of such series in definitive form in an
aggregate principal amount equal to the principal amount of the Global Security
or Securities representing such series in exchange for such Global Security or
Securities.

     If specified by the Corporation pursuant to Section 2.03 with respect to a
series of Securities, the Depositary for such series of Securities may surrender
a Global Security for such series of Securities in exchange in whole or in part
for the Securities of such series in definitive form on such terms as are
acceptable to the Corporation and such Depositary.  Thereupon, the Corporation
shall execute, and the Trustee shall authenticate and deliver:

          (1) to each party specified by such Depositary a new Security or
     Securities of the same series, of any authorized denomination as requested
     by such party in aggregate principal amount equal to and in exchange for
     such party's beneficial interest in the Global Security; and

          (2) to such Depositary a new Global Security in a denomination equal
     to the difference, if any, between the principal amount of the surrendered
     Global Security and the aggregate principal amount of Securities delivered
     to Holders thereof.

     Upon the exchange of the Global Security for Securities in definitive form,
such Global Security shall be canceled by the Trustee.  Securities issued in
exchange for a Global Security pursuant to this Section 2.07 shall be registered
in such names and in such authorized denominations as the Depositary for such
Global Security, pursuant to instructions from its direct or indirect
participants or otherwise, shall instruct the Trustee.  The Trustee shall
deliver such Securities to the parties in whose names such Securities are so
registered.

     SECTION 2.08.  Replacement Securities.  If the Holder of a Security claims
that the Security has been mutilated, destroyed, lost or stolen, the Corporation
may issue and the Trustee shall authenticate a replacement Security of the same
series with identical terms as the Securities exchanged if the requirements of
Section 8-405 of the Uniform Commercial Code (or any successor provision) are
met.  Such Holder shall furnish an indemnity bond sufficient in the judgment of
the Corporation and the Trustee to protect the Corporation, the Guarantor, the
Trustee, the Paying Agent, the Registrar and any co-registrar from any loss
which any of them may suffer if a Security is replaced.  The Corporation and the
Trustee may charge for their expenses in replacing a Security.

     In case any such mutilated, destroyed, lost or stolen Security has become
due and payable, the Corporation in its discretion may,


                                    - 15 -
<PAGE>
 
instead of issuing a new Security, pay such Security (without surrender thereof
except in the case of a mutilated Security) if the applicant for such payment
shall furnish to the Corporation, the Guarantor, the Trustee, the Paying Agent,
the Registrar and any co-registrar for such Security such security or indemnity
as may be required by them to hold each of them harmless, and in case of
destruction, loss or theft, evidence satisfactory to the Corporation, the
Guarantor, the Trustee, the Paying Agent, the Registrar and any co-registrar,
and any agent of any of them, of the destruction, loss or theft of such Security
and the ownership thereof.

     Upon the issuance of any new Security under this Section 2.08, the
Corporation may require the payment of a sum sufficient to cover any tax or
other governmental charge that may be imposed in relation thereto and any other
expenses (including all fees and expenses of the Trustee, the Paying Agent, the
Registrar and any co-registrar for such Security) connected therewith.

     Every new Security of any series issued pursuant to this Section 2.08 in
lieu of any destroyed, lost or stolen Security or in exchange for any mutilated
Security, shall constitute an original additional obligation of the Corporation,
whether or not the destroyed, lost or stolen Security shall be at any time
enforceable by anyone, and shall be entitled to all the benefits of this
Indenture equally and proportionately with any and all other Securities of the
same series.

     The provisions of this Section 2.08 are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Securities.

     SECTION 2.09.  Outstanding Securities.  Securities outstanding at any time
are all Securities authenticated by the Trustee (and, in the case of Global
Securities, endorsed by the Trustee) except for those canceled by it, those
delivered to it for cancellation and those described in this Section as not
outstanding.  A Security does not cease to be outstanding because the
Corporation, the Guarantor or an affiliate of the Corporation or the Guarantor
holds the Security.

     If a Security is replaced pursuant to Section 2.08, it ceases to be
outstanding unless the Trustee receives proof satisfactory to it that the
replaced Security is held by a bona fide purchaser.

     If the Paying Agent holds on a redemption date or maturity date money
sufficient to pay Securities payable on that date, then on and after that date
such Securities cease to be outstanding and interest on them ceases to accrue.

     If a Security is called for redemption, the Corporation and the Trustee
need not treat the Security as outstanding in


                                    - 16 -
<PAGE>
 
determining whether Holders of the required principal amount of Securities have
concurred in any direction, waiver or consent.

     SECTION 2.10.  Temporary Securities.  Until definitive Securities of any
series are ready for delivery or a permanent Global Security or Securities are
prepared, as the case may be, the Corporation may prepare and the Trustee shall
authenticate temporary Securities or one or more temporary Global Securities, as
the case may be, of the same series, having endorsed thereon Guarantees duly
executed by the Guarantor in accordance with the terms and conditions of this
Indenture.  Temporary Securities of any series shall be substantially in the
form of definitive Securities or permanent Global Securities, as the case may
be, of the same series, but may have variations that the Corporation considers
appropriate for temporary Securities.  Without unreasonable delay, the
Corporation shall prepare and the Trustee shall authenticate definitive
Securities or a permanent Global Security or Securities, as the case may be, of
the same series in exchange for temporary Securities.  Until so exchanged, the
temporary Securities of any series shall be entitled to the same benefits under
this Indenture as definitive Securities or permanent Global Securities of such
series.

     SECTION 2.11.  Cancellation.  The Corporation or the Guarantor at any time
may deliver Securities to the Trustee for cancellation.  The Registrar and the
Paying Agent shall forward to the Trustee any Securities surrendered to them for
transfer, exchange or payment.  The Trustee and no one else shall cancel or
destroy all Securities surrendered for transfer, exchange, payment or
cancellation, and shall so certify to the Corporation.  The Corporation may not
issue new Securities to replace Securities it has paid or it has delivered to
the Trustee for cancellation.

     SECTION 2.12.  Defaulted Interest.  If the Corporation defaults in a
payment of interest on any Securities of any series, it shall pay the defaulted
interest to the persons who are Holders of those Securities on a subsequent
special record date.  The Corporation shall fix the special record date and the
payment date in respect thereof.  At least 15 days before the special record
date, the Corporation shall mail to each Holder of Securities of that series a
notice that states the special record date, the payment date and the amount of
defaulted interest to be paid.  The Corporation may pay defaulted interest in
any other lawful manner.

     SECTION 2.13.  Currency and Manner of Payments in Respect of Securities.
(a)  With respect to Securities of any series not permitting the election
provided for in paragraph (b) below or the Holders of which have not made the
election provided for in paragraph (b) below, except as provided in paragraph
(d) below, payment of the principal of and interest, if any, on any Security of
such series will be made in the currency or currency unit in which such Security
is payable.


                                    - 17 -
<PAGE>
 
     (b) It may be provided pursuant to Section 2.03 with respect to Securities
of any series that Holders shall have the option, subject to paragraphs (d) and
(e) below, to receive payments of principal of or interest, if any, on such
Securities in any of the currencies or currency units which may be designated
for such election by delivering to the Trustee for such series of Securities a
written election with signature guarantees and in form and substance
satisfactory to such Trustee, not later than the close of business on the
Election Date immediately preceding the applicable payment date.  If a Holder so
elects to receive such payments in any such currency or currency unit, such
election will remain in effect for such Holder until changed by such Holder by
written notice to the Trustee for such series of Securities (but any such change
must be made not later than the close of business on the Election Date
immediately preceding the next payment date to be effective for the payment to
be made on such payment date and no such change of election may be made with
respect to payments to be made on any Security of such series with respect to
which an Event of Default has occurred or notice of redemption has been given by
the Corporation pursuant to Article 3).  In the event any Holder makes any such
election pursuant to the preceding sentence, such election will not be effective
on any transferee of such Holder and such transferee shall be paid in the
currency or currency unit indicated pursuant to paragraph (a) above unless such
transferee makes an election pursuant to the preceding sentence; provided,
however, that such election, if in effect while funds are on deposit with
respect to the Securities of such series as described in Section 8.01, 8.02 or
8.03, will be effective on any transferee of such Holder unless otherwise
specified pursuant to Section 2.03 for the Securities of such series.  Any
Holder of any such Security who shall not have delivered any such election to
the Trustee of such series of Securities not later than the close of business on
the applicable Election Date will be paid the amount due on the applicable
payment date in the relevant currency or currency unit as provided in paragraph
(a) of this Section. In no case may a Holder of Securities of any series elect
to receive payments in any currency or currency unit as described in this
Section 2.13(b) following a deposit of funds with respect to the Securities of
such series as described in Section 8.01, 8.02 or 8.03.

     (c) If the election referred to in paragraph (b) above has been provided
for pursuant to Section 2.03, then not later than the fourth Business Day after
the Election Date for each payment date for Securities of any series, the
Currency Determination Agent for that series will deliver to the Corporation a
written notice specifying, in the currency or currency unit in which Securities
of such series are payable, the respective aggregate amounts of principal of and
interest, if any, on the Securities to be made on such payment date, and
specifying the amounts in such currency or currency unit so payable with respect
to the Securities of such series as to which the Holders thereof shall have
elected to be paid in a currency or currency unit other than that in which such
series is denominated as provided in paragraph (b) above.  If the election
referred to in paragraph (b) above has been provided for


                                    - 18 -
<PAGE>
 
pursuant to Section 2.03 and if at least one Holder has made such election,
then, on the second Business Day preceding such payment date the Corporation
will deliver to the Trustee for such series of Securities an Exchange Rate
Officers' Certificate with respect to the Dollar, Foreign Currency, ECU or
currency unit payments to be made on such payment date.  The Dollar, Foreign
Currency, ECU or currency unit amount receivable by Holders of Securities who
have elected payment in a currency or currency unit as provided in paragraph (b)
above shall, unless otherwise provided pursuant to Section 2.03, be determined
by the Corporation on the basis of the applicable Market Exchange Rate in effect
on the third Business Day (the "Valuation Date") immediately preceding each
payment date.

     (d) If a Conversion Event occurs with respect to a Foreign Currency, the
ECU or any other currency unit in which any of the Securities are denominated or
payable other than pursuant to an election provided for pursuant to paragraph
(b) above, then with respect to each date for the payment of principal of and
interest, if any, on the applicable Securities denominated or payable in such
Foreign Currency, the ECU or such other currency unit occurring after the last
date on which such Foreign Currency, the ECU or such other currency unit was
available (the "Conversion Date"), the Dollar shall be the currency of payment
for use on each such payment date.  The Dollar amount to be paid by the
Corporation to the Trustee of each such series of Securities and by such Trustee
or any Paying Agent to the Holders of such Securities with respect to such
payment date shall be the amount that would have been payable in Foreign
Currency or currency units but expressed in Dollars according to the Dollar
Equivalent of the Foreign Currency or, in the case of a currency unit, the
Dollar Equivalent of the Currency Unit, in each case as determined by the
Currency Determination Agent in the manner provided in paragraph (f) or (g)
below.

     (e) If the Holder of a Security denominated in any currency or currency
unit shall have elected to be paid in another currency or currency unit as
provided in paragraph (b) above, and a Conversion Event occurs with respect to
such elected currency or currency unit, such Holder shall receive payment in the
currency or currency unit in which payment would have been made in the absence
of such election.  If a Conversion Event occurs with respect to the currency or
currency unit in which payment would have been made in the absence of such
election, such Holder shall receive payment in Dollars as provided in paragraph
(d) above.

     (f) The "Dollar Equivalent of the Foreign Currency" shall be determined by
the Currency Determination Agent and shall be obtained for each subsequent
payment after the Conversion Date by converting the specified Foreign Currency
into Dollars at the Market Exchange Rate on the Conversion Date.

     (g) The "Dollar Equivalent of the Currency Unit" shall be determined by the
Currency Determination Agent and subject to the provisions of paragraph (h)
below shall be the sum of each amount


                                    - 19 -
<PAGE>
 
obtained by converting the Specified Amount of each Component Currency into
Dollars at the Market Exchange Rate for such Component Currency on the Valuation
Date with respect to each payment.

     (h) For purposes of this Section 2.13 the following terms shall have the
following meanings:

     A "Component Currency" shall mean any currency which, on the Conversion
Date, was a component currency of the relevant currency unit, including, but not
limited to, the ECU.

     A "Specified Amount" of a Component Currency shall mean the number of units
of such Component Currency or fractions thereof which were represented in the
relevant currency unit, including, but not limited to, the ECU, on the
Conversion Date.  If after the Conversion Date the official unit of any
Component Currency is altered by way of combination or subdivision, the
Specified Amount of such Component Currency shall be divided or multiplied in
the same proportion.  If after the Conversion Date two or more Component
Currencies are consolidated into a single currency, the respective Specified
Amounts of such Component Currencies shall be replaced by an amount in such
single currency equal to the sum of the respective Specified Amounts of such
consolidated Component Currencies expressed in such single currency, and such
amount shall thereafter be a Specified Amount and such single currency shall
thereafter be a Component Currency.  If after the Conversion Date any Component
Currency shall be divided into two or more currencies, the Specified Amount of
such Component Currency shall be replaced by amounts of such two or more
currencies, each of whose Dollar Equivalent at the Market Exchange Rate on the
date of such replacement shall be equal to the Dollar Equivalent of the
Specified Amount of such former Component Currency at the Market Exchange Rate
on such date divided by the number of currencies into which such Component
Currency was divided, and such amounts shall thereafter be Specified Amounts and
such currencies shall thereafter be Component Currencies.  If, after the
Conversion Date of the relevant currency unit, including, but not limited to,
the ECU, a Conversion Event (other than any event referred to above in this
definition of "Specified Amount") occurs with respect to any Component Currency
of such currency unit and is continuing on the applicable Valuation Date, the
Specified Amount of such Component Currency shall, for purposes of calculating
the Dollar Equivalent of the Currency Unit, be converted into Dollars at the
Market Exchange Rate in effect on the Conversion Date of such Component
Currency.

     "Election Date" shall mean any date for any series of Securities as
specified pursuant to Section 2.03(11) by which the written election referred to
in Section 2.13(b) may be made, such date to be not later than the regular
record date for the earliest payment for which such election may be effective.


                                    - 20 -
<PAGE>
 
     All decisions and determinations of the Currency Determination Agent
regarding the Dollar Equivalent of the Foreign Currency, the Dollar Equivalent
of the Currency Unit, the Market Exchange Rate and changes in the Specified
Amounts as specified above shall be in its sole discretion and shall, in the
absence of manifest error, be conclusive for all purposes and irrevocably
binding upon the Corporation, the Trustee for the appropriate series of
Securities and all Holders of such Securities denominated or payable in the
relevant currency or currency units.  The Currency Determination Agent shall
promptly give written notice to the Corporation and the Trustee for the
appropriate series of Securities of any such decision or determination.

     In the event of a Conversion Event with respect to a Foreign Currency, the
Corporation, after learning thereof, will immediately give written notice
thereof to the Trustee of the appropriate series of Securities and the Currency
Determination Agent with respect to such series (and such Trustee will promptly
thereafter give notice to the Holders) specifying the Conversion Date.  In the
event of a Conversion Event with respect to the ECU or any other currency unit
in which Securities are denominated or payable, the Corporation, after learning
thereof, will immediately give written notice thereof to the Trustee of the
appropriate series of Securities and the Currency Determination Agent with
respect to such series (and such Trustee will promptly thereafter give notice to
the Holders) specifying the Conversion Date and the Specified Amount of each
Component Currency on the Conversion Date.  In the event of any subsequent
change in any Component Currency as set forth in the definition of Specified
Amount above, the Corporation, after learning thereof, will similarly give
written notice to the Trustee of the appropriate series of Securities and the
Currency Determination Agent.

     The Trustee of the appropriate series of Securities shall be fully
justified and protected in relying and acting upon information received by it
from the Corporation and the Currency Determination Agent and shall not
otherwise have any duty or obligation to determine such information
independently.

     SECTION 2.14.  Appointment and Resignation of Currency  Determination
Agent.  (a)  If and so long as the Securities of any series (i) are denominated
in a currency unit or a currency other than Dollars or (ii) may be payable in a
currency unit or a currency other than Dollars, or so long as it is required
under any other provision of this Indenture, then the Corporation will maintain
with respect to each such series of Securities, or as so required, a Currency
Determination Agent.  The Corporation will cause the Currency Determination
Agent to make the necessary foreign exchange determinations at the time and in
the manner specified pursuant to Section 2.03 for the purpose of determining the
applicable rate of exchange and for the purpose of converting the issued
currency or currency unit into the applicable payment currency or currency unit
for the payment of principal and interest, if any, pursuant to Section 2.13.


                                    - 21 -
<PAGE>
 
     (b) No resignation of the Currency Determination Agent and no appointment
of a successor Currency Determination Agent pursuant to this Section shall
become effective until the acceptance of appointment by the successor Currency
Determination Agent as evidenced by a written instrument delivered to the
Corporation and the Trustee of the appropriate series of Securities accepting
such appointment executed by the successor Currency Determination Agent.

     (c) If the Currency Determination Agent shall resign, be removed or become
incapable of acting, or if a vacancy shall occur in the office of the Currency
Determination Agent for any cause, with respect to the Securities of one or more
series, the Corporation, by a Board Resolution, shall promptly appoint a
successor Currency Determination Agent or Currency Determination Agents with
respect to the Securities of that or those series (it being understood that any
such successor Currency Determination Agent may be appointed with respect to the
Securities of one or more or all of such series and that at any time there shall
only be one Currency Determination Agent with respect to the Securities of any
particular series).


                                   ARTICLE 3

                                   REDEMPTION

     SECTION 3.01.  Applicability of this Article.  Securities of any series
that are redeemable at the option of the Corporation prior to their maturity
shall be redeemable in accordance with their terms (except as otherwise
specified in this Indenture for Securities of any series) and in accordance with
this Article 3.

     SECTION 3.02.  Notices to Trustee.  If the Corporation wants to redeem any
Securities, it shall notify the Trustee of the redemption date and the principal
amount of Securities to be redeemed in accordance with the terms of the
Securities.  If the redemption is of less than all the outstanding Securities of
a series, the Corporation shall furnish to the Trustee a written statement
signed by an Officer of the Corporation stating that with respect to that series
there exists no Event of Default and no circumstance which, after notice or the
passage of time or both, would constitute an Event of Default.  The Corporation
shall give the notice provided for in this Section at least 50 days before the
redemption date.

     SECTION 3.03.  Selection of Securities to be Redeemed.  If, at the option
of the Corporation, less than all the Securities of a series are to be redeemed,
the Trustee shall select the Securities to be redeemed by a method the Trustee
considers fair and appropriate, subject to any applicable stock exchange
requirements.  The Trustee shall make the selection from outstanding Securities
not previously called for redemption.  The Trustee may select for redemption
portions of the principal of Securities that have a denomination larger than
$1,000 (or the applicable minimum


                                    - 22 -
<PAGE>
 
denomination for such Securities in the event the Securities are payable in ECUs
or a Foreign Currency or Currencies).  Securities and portions of them it
selects shall be in amounts of $1,000 (or the applicable minimum denomination
for such Securities in the event the Securities are payable in ECUs or a Foreign
Currency or Currencies) or a multiple of $1,000 (or the applicable minimum
denomination for such Securities in the event the Securities are payable in ECUs
or a Foreign Currency or Currencies).  Provisions of this Indenture that apply
to Securities called for redemption also apply to portions of Securities called
for redemption.

     The Trustee for the Securities of any series to be redeemed shall promptly
notify the Corporation in writing of the Securities of such series selected for
redemption and, in the case of any Securities selected for partial redemption,
the principal amount thereof to be redeemed.

     For all purposes of this Indenture, unless the context otherwise requires,
all provisions relating to the redemption of Securities shall relate, in the
case of any Security redeemed or to be redeemed only in part, to the portion of
the principal amount of such Securities which has been or is to be redeemed.

     SECTION 3.04.  Notice of Redemption.  At least 20 days but not more than 60
days before a date of redemption of Securities at the option of the Corporation,
the Corporation shall mail a notice of redemption by first-class mail to each
Holder of Securities to be redeemed.

     The notice shall identify the Securities to be redeemed and shall state:

          (1)  the redemption date;

          (2)  the redemption price;

          (3) the name and address of the Paying Agent;

          (4) that Securities called for redemption must be surrendered to the
     Paying Agent to collect the redemption price; and

          (5) that interest, if any, on Securities called for redemption ceases
     to accrue on and after the redemption date.

     At the Corporation's request, the Trustee shall give the notice of
redemption in the Corporation's name and at its expense.  In such event the
Corporation will provide the Trustee with the information required by clauses
(1) through (5) above.

     SECTION 3.05.  Effect of Notice of Redemption.  Once notice of redemption
is mailed, Securities called for redemption become due and payable on the
redemption date and at the redemption price stated in the notice.  Upon
surrender to the Paying Agent, such

                                    - 23 -
<PAGE>
 
Securities shall be paid at the redemption price stated in the notice, plus
accrued interest, if any, to the redemption date; provided, however, that any
regular payment of interest becoming due on the redemption date shall be payable
to the Holder of any such Security being redeemed as provided in the Security.

     SECTION 3.06.  Deposit of Redemption Price.  By the opening of business on
the redemption date, the Corporation shall deposit with the Paying Agent money
sufficient to pay the redemption price of and accrued interest, if any, on all
Securities to be redeemed at the option of the Corporation on that date.

     SECTION 3.07.  Securities Redeemed in Part.  Upon surrender of a Security
that is redeemed in part, the Trustee shall authenticate for the Holder a new
Security equal in principal amount to the unredeemed portion of the Security
surrendered.


                                   ARTICLE 4

                                   COVENANTS

     SECTION 4.01.  Certain Definitions.  "Attributable Debt" for a lease means
the carrying value of the capitalized rental obligation determined under
generally accepted accounting principles.  The carrying value may be reduced by
the capitalized value of the rental obligations, calculated on the same basis,
that any sublessee has for all or part of the same property.  This term does not
include any obligation to make payments arising from the transfer of tax
benefits under the Economic Recovery Tax Act of 1981 (as it may from time to
time be amended, or any successor statute) to the extent such obligation is
offset by or conditioned upon receipt of payments from another person.  A lease
obligation shall be counted only once even if the Guarantor or the Corporation
and one or more of their Subsidiaries may be responsible for the obligation.

     "Consolidated Net Tangible Assets" means total assets less (1) total
current liabilities (excluding any Debt which, at the option of the borrower, is
renewable or extendable to a term exceeding 12 months and which is included in
current liabilities and further excluding any deferred income taxes which are
included in current liabilities) and (2) goodwill, patents and trademarks, all
as reflected in the Corporation's most recent consolidated balance sheet
preceding the date of a determination under Section 4.03(11).

     "Debt" means all indebtedness for borrowed money reported as debt in the
consolidated financial statements or any guarantee of such a debt and includes
purchase money obligations.  This term does not include any obligation to make
payments arising from the transfer of tax benefits under the Economic Recovery
Tax Act of 1981 (as it may from time to time be amended, or any successor
statute) to the extent such obligation is offset by or conditioned upon receipt
of payments from another person.  A Debt shall be


                                    - 24 -
<PAGE>
 
counted only once even if the Corporation or the Guarantor and one or more of
their Subsidiaries may be responsible for the obligation.

     "Lien" means any mortgage, pledge, security interest or lien.  This term
does not include any obligation arising from the transfer of tax benefits under
the Economic Recovery Tax Act of 1981 (as it may from time to time be amended,
or any successor statute) to the extent such obligation is offset by or
conditioned upon receipt of payments from another person.

     "Long-Term Debt" means Debt that by its terms matures on a date more than
12 months after the date it was created or Debt that the obligor may extend or
renew without the obligee's consent to a date more than 12 months after the Debt
was created.

     "Principal Property" means, as to any particular series of Securities, any
manufacturing facility located in the United States and owned by the
Corporation, the Guarantor or by one or more Restricted Subsidiaries from the
date Securities of that series are first issued and which has, as of the date
the Lien is incurred, a net book value (after deduction of depreciation and
other similar charges) greater than 3% of Consolidated Net Tangible Assets,
except (1) any such facility or property which is financed by obligations of any
State, political subdivision of any State or the District of Columbia under
terms which permit the interest payable to the holders of the obligations to be
excluded from gross income as a result of the plant, facility or property
satisfying the conditions of Section 103(b)(4)(C), (D), (E), (F) or (H) of the
Internal Revenue Code of 1954, as amended, Section 103(b)(6) of the Internal
Revenue Code of 1954, as amended, Section 142(a) or Section 144(a) of the
Internal Revenue Code of 1986, or of any successors to such provisions, or (2)
any such facility or property which, in the opinion of the Board of Directors of
the  Corporation, is not of material importance to the total business conducted
by the Corporation and its Subsidiaries taken as a whole.  However, the Chief
Executive Officer or Chief Financial Officer of the Corporation may at any time
declare any manufacturing facility or other property to be a Principal Property
by delivering a certificate to that effect to the Trustee.

     "Restricted Property" means, as to any particular series of Securities, any
Principal Property, any Debt of a Restricted Subsidiary owned by the
Corporation, the Guarantor or a Restricted Subsidiary on the date Securities of
that series are first issued or secured by a Principal Property (including any
property received upon a conversion or exchange of such Debt), or any shares of
stock of the Corporation or a Restricted Subsidiary owned by the Corporation,
the Guarantor or a Restricted Subsidiary (including any property or shares
received upon a conversion, stock split or other distribution with respect to
the ownership of such stock).

     "Restricted Subsidiary" means a Subsidiary that has substantially all its
assets located in, or carries on

                                    - 25 -
<PAGE>
 
substantially all its business in, the United States and that owns a Principal
Property.  Notwithstanding the preceding sentence, a Subsidiary shall not be a
Restricted Subsidiary during such period of time as it (or any corporation
(other than the Corporation) or other entity that, directly or indirectly,
beneficially owns a majority of the Voting Stock of the Subsidiary) has shares
of capital stock registered under the Exchange Act or it files reports and other
information with the SEC pursuant to Section 13 or 15(d) of the Exchange Act.

     "Sale-Leaseback Transaction" means an arrangement whereby the Corporation,
the Guarantor or a Restricted Subsidiary now owns or hereafter acquires a
Principal Property, transfers it to a person and contemporaneously leases it
back from the person.  This term does not include any transaction arising from
the transfer of tax benefits under the Economic Recovery Tax Act of 1981 (as it
may from time to time be amended, or any successor statute) to the extent the
obligation to make rental payments is offset or conditioned upon receipt of
payments from another person.

     "Subsidiary" means a corporation a majority of the Voting Stock of which is
owned by the Corporation, the Corporation and one or more Subsidiaries, or one
or more Subsidiaries (including, without limitation, the Guarantor).

     "United States" means the United States of America.  The Commonwealth of
Puerto Rico, the Virgin Islands and other territories and possessions are not
part of the United States.

     "Voting Stock" means capital stock having voting power under ordinary
circumstances to elect directors.

     SECTION 4.02.  Payment of Securities.  The Corporation shall promptly pay
the principal of and interest, if any, on the Securities on the dates and in the
manner provided in the Securities.

     To the extent lawful, the Corporation shall pay interest, if any, on
overdue principal at the rate borne by the Securities and shall pay interest, if
any, on overdue installments of interest at the same rate.

     SECTION 4.03.  Limitation on Liens.  The Corporation and the Guarantor
shall not, and neither shall permit any Restricted Subsidiary to, incur a Lien
on Restricted Property to secure a Debt unless:

          (1) the Lien equally and ratably secures the Securities and the Debt.
     The Lien may equally and ratably secure the Securities and any other
     obligation of the Corporation, the Guarantor or a Subsidiary.  The Lien may
     not secure an obligation of the Corporation that is subordinated to any
     Securities or an obligation of the Guarantor that is subordinated to any
     Guarantees; or

                                    - 26 -
<PAGE>
 
          (2) the Lien is on property, Debt or shares of stock of a corporation
     at the time such corporation becomes a Restricted Subsidiary; or

          (3) the Lien is on property at the time the Corporation, the Guarantor
     or a Restricted Subsidiary acquires the property.  However, the Lien may
     not extend to any other Restricted Property owned by the Corporation, the
     Guarantor or a Restricted Subsidiary at the time the property is acquired;
     or

          (4) the Lien secures the payment of all or any part of the purchase
     price of property upon the acquisition of such property by the Corporation,
     the Guarantor or a Restricted Subsidiary or secures any Debt incurred or
     guaranteed by the Corporation, the Guarantor or a Restricted Subsidiary
     prior to, at the time of, or within one year after the later of the
     acquisition, completion of construction (including any improvements on an
     existing property) or commencement of full operation of such property,
     which Debt is incurred or guaranteed for the purpose of financing all or
     any part of the purchase price thereof or construction or improvements
     thereon, and which Debt may be in the form of obligations incurred in
     connection with industrial revenue bonds or similar financings and letters
     of credit issued in connection therewith; provided, however, that in the
     case of any such acquisition, construction or improvement the Lien shall
     not apply to any property theretofore owned by the Corporation, the
     Guarantor or a Restricted Subsidiary, other than, in the case of any such
     construction or improvement, any theretofore unimproved real property on
     which the property so constructed or the improvement made is located; or

          (5) the Lien secures Debt of a Restricted Subsidiary owed to the
     Corporation, the Guarantor or another Restricted Subsidiary; or

          (6) the Lien is on property of a corporation or other entity at the
     time such corporation or other entity merges into, or consolidates or
     enters into a share exchange with, the Corporation, the Guarantor or a
     Restricted Subsidiary; or

          (7) the Lien is on property of a person at the time the person
     transfers or leases all or substantially all its assets to the Corporation,
     the Guarantor or a Restricted Subsidiary; or

          (8) the Lien is in favor of any customer (including any government or
     governmental authority) to secure partial, progress, advance or other
     payments or performance pursuant to any contract or statute or to secure
     any related indebtedness or to secure Debt guaranteed by a government or
     governmental  authority; or

                                    - 27 -
<PAGE>
 
          (9) the Lien arises pursuant to any order of attachment, distraint or
     similar legal process arising in connection with court proceedings so long
     as the execution or other enforcement thereof is effectively stayed and the
     claims secured thereby are being contested in good faith by appropriate
     proceedings or the Lien is a materialmen's, suppliers', tax or other
     similar Lien arising in the ordinary course of business securing
     obligations which are not overdue or are being contested in good faith by
     appropriate proceedings; or

          (10) as to any particular series of Securities, the Lien extends,
     renews or replaces in whole or in part a Lien ("existing Lien") permitted
     by any of the clauses (1) through (9) or a Lien existing on the date that
     Securities of such series are first issued.  The Lien may not extend beyond
     the property subject to the existing Lien.  The Debt secured by the Lien
     may not exceed the Debt secured at the time by the existing Lien unless the
     existing Lien or a predecessor Lien was incurred under clause (1) or (5);
     or

          (11) the Debt secured by the Lien plus all other Debt secured by Liens
     on Restricted Property, excluding Debt secured by a Lien permitted by any
     of the clauses (1) through (10) and any Debt secured by a Lien existing at
     the date of this Indenture, at the time does not exceed 10% of Consolidated
     Net Tangible Assets.  Attributable Debt for any lease entered into under
     clause (4) of Section 4.04 shall be included in the determination and
     treated as Debt secured by a Lien on Restricted Property not otherwise
     permitted by any of the clauses (1) through (10).

     SECTION 4.04.  Limitation on Sale-Leaseback Transactions.  The Corporation
and the Guarantor shall not, and neither shall permit any Restricted Subsidiary
to, enter into a Sale-Leaseback Transaction unless:

          (1) the lease has a term of three years or less; or

          (2) the lease is between the Corporation and the Guarantor, the
     Guarantor and a Restricted Subsidiary, the Corporation and a Restricted
     Subsidiary or between Restricted Subsidiaries; or

          (3) the Corporation, the Guarantor or a Restricted Subsidiary under
     clauses (2) through (10) of Section 4.03 could create a Lien on the
     property to secure Debt at least equal in amount to the Attributable Debt
     for the lease; or

          (4) the Corporation, the Guarantor or a Restricted Subsidiary under
     clause (11) of Section 4.03 could create a Lien on the property to secure
     Debt at least equal in amount to the Attributable Debt for the lease; or

                                    - 28 -
<PAGE>
 
          (5) the Corporation or the Guarantor owns or acquires other property
     which will be made a Principal Property and is determined by the Board of
     Directors of the Corporation or the Guarantor to have a fair value equal to
     or greater than the Attributable Debt incurred; or

          (6)  (A)  the Corporation, the Guarantor or a Restricted Subsidiary
     makes an optional prepayment in cash of its Debt at least equal in amount
     to the Attributable Debt for the lease,

               (B) the prepayment is made within 120 days of the effective date
          of the lease,

               (C) the Debt prepaid is not owned by the Corporation, the
          Guarantor or a Restricted Subsidiary, and

               (D) the Debt prepaid was Long-Term Debt at the time it was
          created.

     SECTION 4.05.  No Lien Created, etc.  This Indenture and the Securities do
not create a Lien, charge or encumbrance on any property of the Corporation, the
Guarantor or any Subsidiary.

     SECTION 4.06.  Compliance Certificate.  The Corporation and the Guarantor
shall deliver to the Trustee within 120 days after the end of each fiscal year
of the Corporation an Officers' Certificate stating whether or not the signers
know of any default by the Corporation or the Guarantor in performing their
covenants in Section 4.03 or 4.04.  If they do know of such a default, the
certificate shall describe the default.  The certificate need not comply with
Section 11.05.

     SECTION 4.07.  SEC Reports.  Each of the Corporation and the  Guarantor
shall file with the Trustee within 15 days after it files them with the SEC
copies of the annual reports and of the information, documents and other reports
(or copies of such portions of any of the foregoing as the SEC may by rules and
regulations prescribe) which the Corporation or the Guarantor, as the case may
be, is required to file with the SEC pursuant to Section 13 or Section 15(d) of
the Exchange Act.  The Corporation and the Guarantor, as applicable, also shall
comply with the other provisions of TIA Section 314(a).


                                   ARTICLE 5

                             SUCCESSOR CORPORATION

     SECTION 5.01.  When the Corporation or the Guarantor May Merge, etc.

          (a) Neither the Corporation nor the Guarantor shall consolidate with
or merge into, or transfer all or substantially


                                    - 29 -
<PAGE>
 
all its assets to another corporation, unless (1) the resulting, surviving or
transferee corporation assumes by supplemental indenture all the obligations of
the Corporation or the Guarantor, as the case may be, under the Securities or
the Guarantees and this Indenture, (2) immediately after giving effect to such
transaction no Event of Default and no circumstances which, after notice or
lapse of time or both, would become an Event of Default, shall have happened and
be continuing, and (3) the Corporation or the Guarantor, as the case may be,
shall have delivered to the Trustee an Officers' Certificate and an Opinion of
Counsel, each stating that such consolidation, merger or transfer and such
supplemental indenture comply with this Indenture, and thereafter all such
obligations of the Corporation or the Guarantor, as the case may be, shall
terminate.

          (b) In the event that (1) the Corporation and the Guarantor shall
consolidate with each other into another corporation, (2) the Corporation shall
merge into the Guarantor or vice versa, or (3) the Corporation shall transfer
all or substantially all of its assets to the Guarantor or vice versa, then,
upon satisfaction of the conditions set forth in Section 5.01(a), the resulting,
surviving or transferee corporation shall be substituted for the Corporation
under this Indenture and the Guarantees shall terminate and be of no further
effect.

     SECTION 5.02.  When Securities Must be Secured.  If upon any such
consolidation, merger or transfer a Restricted Property would become subject to
an attaching Lien that secures Debt, then, before the consolidation, merger or
transfer occurs, the Corporation or the Guarantor, as the case may be, by
supplemental indenture shall secure the Securities by a direct lien on the
Restricted Property.  The direct Lien shall have priority over all Liens on the
Restricted Property except those already on it.  The direct Lien may equally and
ratably secure the Securities or the Guarantees and any other obligation of the
Corporation, the Guarantor or a Subsidiary.  However, the Corporation or the
Guarantor, as the case may be, need not comply with this Section if:

          (1) upon the consolidation, merger or transfer the attaching Lien will
     secure the Securities or the Guarantees, as the case may be, equally and
     ratably with or prior to Debt secured by the attaching Lien; or

          (2) the Corporation or the Guarantor or a Restricted Subsidiary under
     any of the clauses (2) through (11) of Section 4.03 could create a Lien on
     the Restricted Property to secure Debt at least equal in amount to that
     secured by the attaching Lien.


                                    - 30 -
<PAGE>
 
                                 ARTICLE 6

                             DEFAULTS AND REMEDIES

     SECTION 6.01.  Events of Default. An "Event of Default" occurs with respect
to a series of Securities if:

          (1) the Corporation defaults in the payment of interest on any
     Security of that series when the same becomes due and payable and the
     default continues for a period of 30 days;

          (2) the Corporation defaults in the payment of the principal of any
     Security of that series when the same becomes due and payable at maturity,
     upon redemption or otherwise;

          (3) the Corporation or the Guarantor fails to comply with any of its
     other agreements in the Guarantees or the Securities of that series or this
     Indenture for the benefit of that series and the default continues for the
     period and after the notice specified in this Section;

          (4) the Corporation or the Guarantor pursuant to or within the meaning
     of any Bankruptcy Law:

               (A)  commences a voluntary case,

               (B) consents to the entry of an order for relief against it in an
          involuntary case,

               (C) consents to the appointment of a Custodian of it or for all
          or substantially all of its property, or

               (D) makes a general assignment for the benefit of its creditors;

          (5) a court of competent jurisdiction enters an order or decree under
     any Bankruptcy Law that:

               (A) is for relief against the Corporation or the Guarantor in an
          involuntary case,

               (B) appoints a Custodian of the Corporation or the Guarantor or
          for all or substantially all of the property of the Corporation or the
          Guarantor, or

               (C) orders the winding up or liquidation of the Corporation or
          the Guarantor,

     and the order or decree remains unstayed and in effect for 60 days; or

          (6) there occurs any other event specifically described as an Event of
     Default by the Securities of that series.


                                    - 31 -
<PAGE>
 
     The term "Bankruptcy Law" means Title 11, United States Code, or any
similar Federal or state law for the relief of debtors.  The term "Custodian"
means any receiver, trustee, assignee, liquidator, custodian or similar official
under any Bankruptcy Law.

     A default under clause (3) is not an Event of Default with respect to a
series of Securities until the Trustee or the Holders of at least 25% in
principal amount of the Securities of that series notify the Corporation and the
Guarantor of the default and the Corporation or the Guarantor, as the case may
be, does not cure the default within 90 days after receipt of the notice.  The
notice must specify the default, demand that it be remedied and state that the
notice is a "Notice of Default."  Subject to Sections 7.01 and 7.02 the Trustee
shall not be charged with knowledge of any default unless written notice thereof
shall have been given to the Trustee by the Corporation, the Guarantor, the
Paying Agent, the Holder of a Security or an agent of such Holder.

     SECTION 6.02.  Acceleration.  If an Event of Default with respect to a
series of Securities occurs and is continuing, the Trustee, by notice to the
Corporation and the Guarantor or the Holders of at least 25% in principal amount
of the Securities of that series by notice to the Corporation, the Guarantor and
the Trustee, may declare the principal (or, in the case of Discounted
Securities, such amount of principal as may be provided for in such Securities)
of and accrued interest, if any, on all the Securities of that series to be due
and payable immediately.  Upon such a declaration such principal and interest,
if any, shall be due and payable immediately.  The Holders of a majority in
principal amount of the Securities of any series by notice to the Trustee may
rescind an acceleration (and upon such rescission any Event of Default caused by
such acceleration shall be deemed cured) with respect to that series and its
consequences if all existing Events of Default with respect to the series have
been cured or waived, if the rescission would not conflict with any judgment or
decree, and if all payments due to the Trustee and any predecessor Trustee under
Section 7.07 have been made.

     SECTION 6.03.  Other Remedies.  If an Event of Default with respect to a
series of Securities occurs and is continuing, the Trustee may pursue any
available remedy by proceeding at law or in equity to collect the payment of
principal of (or, in the case of Discounted Securities, such amount of principal
as may be provided for in such Securities) or interest, if any, on the
Securities of that series or to enforce the performance of any provision of such
Securities or this Indenture.

     The Trustee may maintain a proceeding even if it does not possess any of
the Securities or does not produce any of them in the proceeding.  A delay or
omission by the Trustee or any Securityholder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of acquiescence in the Event of Default.  No remedy is


                                    - 32 -
<PAGE>
 
exclusive of any other remedy.  All available remedies are cumulative to the
extent permitted by law.

     SECTION 6.04.  Waiver of Past Defaults.  Subject to Section 9.02 the
Holders of a majority in principal amount of the Securities of a series by
notice to the Trustee may waive an existing Default or Event of Default with
respect to that series and its consequences.  When a Default or Event of Default
is waived, it is cured and stops continuing, but no such waiver shall extend to
any subsequent or other Default or Event of Default or impair any right
consequent thereto.

     SECTION 6.05.  Control by Majority.  The Holders of a majority in principal
amount of the Securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or of
exercising any trust or power conferred on it with respect to that series.
However, the Trustee may refuse to follow any direction that conflicts with law
or this Indenture, or, subject to Section 7.01, that the Trustee determines is
unduly prejudicial to the rights of other Holders of Securities of the same
series or would involve the Trustee in personal liability.

     SECTION 6.06.  Limitation on Suits.  No Holder of a Security of any series
may pursue any remedy with respect to this Indenture or the Securities unless:

          (1) the Holder gives to the Trustee written notice stating that an
     Event of Default with respect to the Securities of the series is
     continuing;

          (2) the Holders of at least 25% in principal amount of the Securities
     of that series make a written request to the Trustee to pursue the remedy;

          (3) such Holder or Holders offer to the Trustee indemnity satisfactory
     to the Trustee against any loss, liability or expense;

          (4) the Trustee does not comply with the request within 60 days after
     receipt of the request and the offer of indemnity; and

          (5) during such 60-day period the Holders of a majority in principal
     amount of the Securities of that series do not give the Trustee a direction
     inconsistent with the request.

     A Securityholder may not use this Indenture to prejudice the rights of
another Securityholder or to obtain a preference or priority over any other
Securityholder.

     SECTION 6.07.  Rights of Holders to Receive Payment.  Notwithstanding any
other provision of this Indenture, the right of any Holder to receive payment of
principal of and interest, if any,

                                    - 33 -
<PAGE>
 
on the Security on or after the respective due dates expressed in the Security,
or to bring suit for the enforcement of any such payment on or after such
respective date, shall not be impaired or affected without the consent of the
Holder.

     SECTION 6.08.  Collection Suit by Trustee.  If an Event of Default in
payment of interest or principal specified in Section 6.01(1) or (2) occurs and
is continuing, subject to Sections 6.02 and 6.04 the Trustee may recover
judgment in its own name and as trustee of an express trust against the
Corporation and the Guarantor for the whole amount of principal and interest, if
any, remaining unpaid.

     SECTION 6.09.  Trustee May File Proofs of Claim.  The Trustee may file such
proofs of claim and other papers or documents as may be necessary or advisable
in order to have the claims of the Trustee and the Securityholders allowed in
any judicial proceedings relative to the Corporation or the Guarantor, or any of
their creditors or property, and unless prohibited by law or applicable
regulations, may vote on behalf of the Holders in any election of a trustee in
bankruptcy or other person performing similar functions.

     SECTION 6.10.  Priorities.  If the Trustee collects any money pursuant to
this Article with respect to the Securities of any series, it shall pay out the
money in the following order:

          First:  to the Trustee for amounts due under Section 7.07;

          Second:  to Holders of Securities of that series for amounts due and
     unpaid on such Securities for principal and interest, if any, ratably,
     without preference or priority of any kind, according to the amounts due
     and payable on such Securities for principal and interest, if any,
     respectively; and

          Third:  to the Corporation.

     The Trustee may fix a record date and payment date for any payment to
Securityholders pursuant to this Section.

     SECTION 6.11.  Undertaking for Costs.  In any suit for the enforcement of
any right or remedy under this Indenture or in any suit against the Trustee for
any action taken or omitted by it as Trustee, a court in its discretion may
require the filing by any party litigant in the suit other than the Trustee of
an undertaking to pay the costs of the suit, and the court in its discretion may
assess reasonable costs, including reasonable attorneys' fees, against any party
litigant in the suit including the Trustee, having due regard to the merits and
good faith of the claims or defenses made by the party litigant.  This Section
does not apply to a suit by the Trustee, a suit by a Holder pursuant to


                                    - 34 -
<PAGE>
 
Section 6.07 or a suit by Holders of more than 10% in principal amount of the
Securities of any series.


                                   ARTICLE 7

                                    TRUSTEE

     SECTION 7.01.  Duties of Trustee.  (a) If an Event of Default has occurred
and is continuing, the Trustee shall with respect to Securities exercise its
rights and powers and use the same degree of care and skill in their exercise as
a prudent man would exercise or use under the circumstances in the conduct of
his own affairs.

     (b) Except during the continuance of an Event of Default:

          (1) the Trustee need perform only those duties that are specifically
     set forth in this Indenture and no others; and

          (2) in the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates, notices or opinions
     furnished to the Trustee and conforming to the requirements of this
     Indenture.  However, the Trustee shall examine the certificates, notices
     and opinions to determine whether or not they conform to the requirements
     of this Indenture.

     (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct, except
that:

          (1) this paragraph does not limit the effect of paragraph (b) of this
     Section;

          (2) the Trustee shall not be liable for any error of judgment made in
     good faith by a Trust Officer, unless it is proved that the Trustee was
     negligent in ascertaining the pertinent facts; and

          (3) the Trustee shall not be liable with respect to any action it
     takes or omits to take in good faith in accordance with a direction
     received by it pursuant to Section 6.05.

     (d) Every provision of this Indenture that in any way  relates to the
Trustee is subject to paragraphs (a), (b) and (c) of this Section.

     (e) The Trustee may refuse to perform any duty or exercise any right or
power unless it receives indemnity satisfactory to it against any loss,
liability or expense.


                                    - 35 -
<PAGE>
 
     (f) The Trustee shall not be liable for interest on any money received by
it except as the Trustee may agree with the Corporation.

     SECTION 7.02.  Rights of Trustee.  (a) Subject to Section 7.01 the Trustee
may rely on any document believed by it to be genuine and to have been signed or
presented by the proper person.  The Trustee need not investigate any fact or
matter stated in the document.

     (b) Before the Trustee acts or refrains from acting, it may require an
Officers' Certificate or an Opinion of Counsel.  The Trustee shall not be liable
for any action it takes or omits to take in good faith in reliance on the
Officers' Certificate or Opinion of Counsel.

     (c) The Trustee may act through agents and shall not be responsible for the
misconduct or negligence of any agent appointed with due care.

     (d) The Trustee shall not be liable for any action it takes or omits to
take in good faith which it believes to be authorized or within its rights or
powers.

     SECTION 7.03.  Individual Rights of Trustee, etc.  The Trustee in its
individual or any other capacity may become the owner or pledgee of Securities
and may otherwise deal with the Corporation, the Guarantor or any of their
affiliates with the same rights it would have if it were not Trustee.  Any Agent
may do the same with like rights.  However, the Trustee must comply with
Sections 7.10 and 7.11.

     SECTION 7.04.  Trustee's Disclaimer.  The Trustee makes no representations
as to the validity or adequacy of this Indenture or the Securities or the
Guarantees, it shall not be accountable for the Corporation's use of the
proceeds from the Securities, and it shall not be responsible for any statement
in the Securities or in the Guarantees other than its certificate of
authentication.

     SECTION 7.05.  Notice of Defaults.  If a Default occurs with respect to a
series of Securities and is continuing and if it is known to the Trustee, the
Trustee shall mail to each Holder of Securities of that series notice of the
Default within 90 days after it occurs.  Except in the case of a default in
payment on any Security, the Trustee may withhold the notice if and so long as a
committee of its Trust Officers in good faith determines that withholding the
notice is in the interests of such Holders.

     SECTION 7.06.  Reports by Trustee to Holders.  If required pursuant to TIA
Section 313(a), the Trustee, within 60 days after each May 15, shall mail to
each Securityholder a brief report dated as of May 15 that complies with TIA
Section 313(a).  The Trustee also shall comply with the reporting obligations of
TIA Section 313(b).

                                    - 36 -
<PAGE>
 
     A copy of each report at the time of its mailing to Securityholders shall
be filed with the SEC and each stock exchange on which the Securities are
listed.  The Corporation agrees to notify the Trustee whenever the Securities
become listed on any stock exchange.

     SECTION 7.07.  Compensation and Indemnity.  The Corporation shall pay to
the Trustee from time to time reasonable compensation for its services.  The
Corporation shall reimburse the Trustee upon request for all reasonable out-of-
pocket expenses incurred by it.  Such expenses shall include the reasonable
compensation and expenses of the Trustee's agents and counsel.  The Corporation
shall indemnify the Trustee against any loss or liability incurred by it in
connection with the administration of this trust and its duties hereunder.  The
Trustee shall notify the Corporation promptly of any claim for which it may seek
indemnity.  The Corporation need not pay for any settlement made without its
consent.  The Corporation need not reimburse any expense or indemnify against
any loss or liability incurred by the Trustee through negligence or bad faith.

     To secure the Corporation's payment obligations in this Section, the
Trustee shall have a senior claim to which the Securities are hereby made
subordinate on all money or property held or collected by the Trustee, except
that held in trust to pay principal of and interest, if any, on particular
Securities.

     When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 6.01(4) or (5) occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law.

     SECTION 7.08.  Replacement of Trustee.  The Trustee may resign with respect
to the Securities of one or more series by so notifying the Corporation.  The
Holders of a majority in principal amount of the Securities of any series may
remove the Trustee with respect to that series by so notifying the removed
Trustee and may appoint a successor Trustee with the Corporation's consent.  The
Corporation may remove the Trustee if:

          (1) the Trustee fails to comply with Section 7.10;

          (2) the Trustee is adjudged a bankrupt or an insolvent;

          (3) a receiver or other public officer takes charge of the Trustee or
     its property; or

          (4) the Trustee otherwise becomes incapable of acting.

     If the Trustee resigns or is removed or if a vacancy exists in the office
of trustee for any reason, the Corporation shall promptly appoint a successor
Trustee.


                                    - 37 -
<PAGE>
 
     A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Corporation.  Immediately after that, the
retiring Trustee shall transfer all property held by it as Trustee for the
benefit of the series with respect to which it is retiring to the successor
Trustee, the resignation or removal of the retiring Trustee shall then become
effective, and the successor Trustee shall have all the rights, powers and
duties of the Trustee under this Indenture with respect to that series.  A
successor Trustee shall mail notice of its succession to each Holder of the
Securities of the series affected.

     If pursuant to Section 2.03(5) a trustee, other than the Trustee initially
named in this Indenture (or any successor thereto), is appointed with respect to
one or more series of Securities, the Corporation, the Guarantor, the Trustee
initially named in this Indenture (or any successor thereto) and such newly
appointed trustee shall execute and deliver a supplement to this Indenture which
shall contain such provisions as shall be necessary or desirable to confirm that
all the rights, powers, trusts and duties of the Trustee initially named in this
Indenture (or any successor thereto) with respect to the Securities of any
series as to which the Trustee is continuing as trustee hereunder shall continue
to be vested in the Trustee initially named in this Indenture (or any successor
thereto), and shall add to, supplement or change any of the provisions of this
Indenture as shall be necessary or desirable to provide for or facilitate the
administration of the trusts hereunder by more than one trustee, it being
understood that nothing herein or in such supplemental indenture shall
constitute such trustees co-trustees of the same trust and that each such
trustee shall be trustee of a trust or trusts relating to the separate series of
Securities as if it were acting under a separate indenture.

     If a successor Trustee with respect to a series of Securities does not take
office within 60 days after the retiring Trustee resigns or is removed, the
retiring Trustee, the Corporation or the Holders of a majority in principal
amount of the Securities of that series may petition any court of competent
jurisdiction for the appointment of a successor Trustee.

     If the Trustee with respect to a series of Securities fails to comply with
Section 7.10, any Holder of Securities of that series may petition any court of
competent jurisdiction for the removal of the Trustee and the appointment of a
successor Trustee.

     If there are two or more Trustees at any time under this Indenture, each
will be the Trustee of a separate trust held under this Indenture for the
benefit of the series of Securities for which it is acting as Trustee and the
rights and obligations of each Trustee will be determined as if it were acting
under a separate indenture.

     SECTION 7.09.  Successor Trustee by Merger, etc.  If the Trustee
consolidates with, merges or converts into or transfers all


                                    - 38 -
<PAGE>
 
or substantially all its corporate trust assets to another corporation, the
resulting, surviving or transferee corporation without any further act shall be
the successor Trustee.

     SECTION 7.10.  Eligibility; Disqualification.  This Indenture shall always
have a Trustee that satisfies the requirements of TIA Section 310(a).  The
Trustee shall have a combined capital and surplus of at least $5,000,000 as set
forth in its most recent published annual report of condition.  The Trustee
shall comply with TIA Section 310(b), provided that the question whether the
Trustee has a conflicting interest shall be determined as if each series of
Securities were separate issues of securities issued under separate indentures.
First Trust of Illinois, National Association also is the trustee under (i) an
indenture dated March 15, 1981, under which the Corporation (as successor by
merger to Martin Marietta Corporation) has issued $175,000,000 aggregate
principal amount of its 7% Debentures  due 2011, (ii) an indenture dated March
17, 1988, under which the Corporation (as successor by merger to Martin Marietta
Corporation) has issued $100,000,000 aggregate principal amount of its 9% Notes
due 2003, (iii) an indenture dated March 15, 1993, under which the Corporation
(as successor by merger to Martin Marietta Corporation) has issued $400,000,000
aggregate principal amount of its 6 1/2% Notes due 2003, $150,000,000 aggregate
principal amount of its 7 3/8% Debentures due 2013 and $150,000,000 aggregate
principal amount of its 7 3/4% Debentures due 2023, (iv) an indenture dated
January 15, 1992, under which the Guarantor has issued $100,000,000 aggregate
principal amount of its 9.125% Debentures due 2022 and (v) an indenture dated
September 1, 1993, under which the Guarantor has issued $250,000,000 aggregate
principal amount of its 7.625% Notes due 2004, $400,000,000 aggregate principal
amount of its 8.375% Debentures due 2024 and $150,000,000 aggregate principal
amount of its 7.625% Debentures due 2025.

     SECTION 7.11.  Preferential Collection of Claims Against  Corporation.  The
Trustee shall comply with TIA Section 311(a), excluding any creditor
relationship listed in TIA Section 311(b).  A Trustee who has resigned or been
removed shall be subject to TIA Section 311(a) to the extent indicated therein.


                                   ARTICLE 8

                     SATISFACTION, DISCHARGE AND DEFEASANCE

     SECTION 8.01.  Satisfaction and Discharge Under Limited  Circumstances.  If
at any time (a) all Securities of a series previously authenticated (other than
any Securities destroyed, lost or stolen and replaced or paid as provided in
Section 2.08) shall have been delivered to the Trustee for cancellation, or 
(b) all the Securities of a series not previously delivered to the Trustee for
cancellation shall have become due and payable, the Corporation has deposited or
caused to be deposited with the Trustee as trust funds the entire amount (other
than moneys paid to the Corporation in


                                    - 39 -
<PAGE>
 
accordance with Section 8.05) sufficient to pay at maturity or upon redemption
all Securities of that series not previously delivered to the Trustee for
cancellation, including principal and interest, if any, due, and if, in either
case, the Corporation shall also pay all other sums then payable under this
Indenture by the Corporation, then this Indenture shall cease to be of further
effect with respect to Securities of that series and the related Guarantees, and
the Trustee, on demand of and at the cost and expense of the Corporation, shall
execute proper instruments acknowledging satisfaction of and discharging this
Indenture with respect to Securities of that series and the related Guarantees.
The Corporation will reimburse the Trustee for any subsequent costs or expenses
reasonably and properly incurred by the Trustee in connection with this
Indenture, the Securities or the related Guarantees.

     SECTION 8.02.  Satisfaction and Discharge of Indenture.  The Corporation
may take any action provided for in this Section unless the Securities of the
affected series specifically provide that this Section shall not apply to the
series.  The Corporation at any time at its option may terminate all of its
obligations and the obligations of the Guarantor under the Securities of a
series previously authenticated and its obligations under this Indenture with
respect to such series (except as provided below), and the Trustee, at the
expense of the Corporation, shall, upon the request of the Corporation, execute
proper instruments acknowledging satisfaction of and discharging this Indenture
with respect to Securities of that series, effective on the date the following
conditions are satisfied:

          (1) with reference to this Section, the Corporation has deposited or
     caused to be deposited with the Trustee, as trust funds in trust,
     specifically pledged as security for and dedicated solely to the benefit of
     the Holders of the Securities of that series, (a) lawful money, in the
     currency or currencies in which Securities of that series are payable, in
     an amount, or (b) if the Securities of that series are payable in Dollars,
     U.S. Government Obligations which through the payment of interest and
     principal in respect thereof in accordance with their terms (and, as to
     callable U.S. Government Obligations, regardless of when they are called)
     will provide not later than the opening of business on the due dates of any
     payment of the principal of and any interest on the Securities of that
     series lawful money of the United States in an amount, or (c) Securities of
     that series, or (d) a combination thereof, sufficient to pay and discharge
     the principal of and interest, if any, on the Securities of that series on
     the date on which such payments are due and payable in accordance with the
     terms of this Indenture and of the Securities of that series and 91 days
     have passed during which no Event of Default under Section 6.01(4) or
     6.01(5) has occurred;

                                    - 40 -
<PAGE>
 
          (2) if the Securities of that series are then listed on any national
     securities exchange, the Corporation shall have delivered to the Trustee an
     Opinion of Counsel to the effect that such deposit, defeasance and
     discharge will not cause such Securities to be delisted; and

          (3) the Corporation has delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, complying with Section 11.04
     relating to the Corporation's exercise of such option.

     The trust established pursuant to subsection (1) above shall be irrevocable
and shall be made under the terms of an escrow trust agreement in form and
substance satisfactory to the Trustee.  The escrow trust agreement may, at the
Corporation's election, grant the Corporation the right to substitute U.S.
Government Obligations or Securities of the same series from time to time for
any or all of the U.S. Government Obligations deposited with the Trustee
pursuant to this Section and the escrow trust agreement; provided, that the
condition specified in subsection (1) above is satisfied immediately following
any such substitution or substitutions.  If any Securities of a series are to be
redeemed prior to their stated maturity pursuant to optional redemption
provisions the applicable escrow trust agreement shall provide therefor and the
Corporation shall make such arrangements as are satisfactory to the Trustee for
the giving of notice of redemption by the Trustee in the name, and at the
expense, of the Corporation.

     Upon the satisfaction of the conditions set forth in this Section with
respect to the Securities, the terms and conditions of the Securities and the
Guarantees, including the terms and conditions with respect thereto set forth in
this Indenture, shall no longer be binding upon, or applicable to, the
Corporation or the Guarantor.

     Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Corporation under Sections 2.04, 2.05, 2.06, 2.07, 2.08,
2.10, 7.07 and 7.08 with respect to the Securities of that series shall survive
until the Securities of that series are no longer outstanding.  Thereafter, the
Corporation's obligations in Section 7.07 shall survive.

     "U.S. Government Obligations" means the following obligations:

          (1) direct obligations of the United States for the payment of which
     its full faith and credit is pledged; or

          (2) obligations of a person controlled or supervised by and acting as
     an agency or instrumentality of the United States the payment of which is
     unconditionally guaranteed as a full faith and credit obligation by the
     United States.

     SECTION 8.03.  Defeasance of Certain Obligations.  The Corporation may take
any action provided for in this Section unless


                                    - 41 -
<PAGE>
 
the Securities of the affected series specifically provide that this Section
shall not apply to the series.  The Corporation and the Guarantor at any time at
their option may cease to be under any obligation to comply with Sections 4.03,
4.04, 4.06, 5.01 and 5.02 with respect to Securities of a series effective on
the date the following conditions are satisfied:

          (1) with reference to this Section, the Corporation has deposited or
     caused to be deposited with the Trustee irrevocably, as trust funds in
     trust, specifically pledged as security for and dedicated solely to the
     benefit of the Holders of the Securities of that series, (a) lawful money,
     in the currency or currencies in which Securities of that series are
     payable, in an amount, or (b) if the Securities of that series are payable
     in Dollars, U.S. Government Obligations which through the payment of
     interest and principal in respect thereof in accordance with their terms
     (and, as to callable U.S. Government Obligations, regardless of when they
     are called) will provide not later than the opening of business on the due
     dates of any payment of principal of and interest on the Securities of that
     series lawful money of the United States in an amount, or (c) Securities of
     that issue, or (d) a combination thereof, sufficient to pay and discharge
     the principal of and interest on the Securities of that series on the day
     on which such payments are due and payable in accordance with the terms of
     this Indenture and of the Securities of that series; and

          (2) the Corporation has delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel complying with Section 11.04 relating
     to the Corporation's exercise of such option.

     The trust established pursuant to subsection (1) above shall be irrevocable
and shall be made under the terms of an escrow trust agreement in form and
substance satisfactory to the Trustee.  The escrow trust agreement may, at the
Corporation's election, grant the Corporation the right to substitute U.S.
Government Obligations or Securities of the same series from time to time for
any or all of the U.S. Government Obligations deposited with the Trustee
pursuant to this Section and the escrow trust agreement; provided, that the
condition specified in subsection (1) above is satisfied immediately following
any such substitution or substitutions.  If any Securities of a series are to be
redeemed prior to their stated maturity pursuant to optional redemption
provisions the applicable escrow trust agreement shall provide therefor and the
Corporation shall make such arrangements as are satisfactory to the Trustee for
the giving of notice of redemption by the Trustee in the name, and at the
expense, of the Corporation.

     The Corporation's exercise of its option under this Section shall not
preclude the Corporation from subsequently exercising its option under Section
8.02 hereof and the Corporation may so


                                    - 42 -
<PAGE>
 
exercise that option by providing the Trustee with written notice to such
effect.

     SECTION 8.04.  Application of Trust Money.  The Trustee shall hold in trust
money, U.S. Government Obligations, and Securities of that series deposited with
it pursuant to Sections 8.01, 8.02 or 8.03.  It shall apply the deposited money
and U.S. Government Obligations through the Paying Agent and in accordance with
this Indenture, to the payment of principal and interest, if any, on the
Securities of the series for the payment of which such money and U.S. Government
Obligations has been deposited.  The Holder of any Security replaced pursuant to
Section 2.08 shall not be entitled to any such payment and shall look only to
the Corporation for any payment which such Holder may be entitled to collect.
In connection with the satisfaction and discharge of this Indenture or the
defeasance of certain obligations under this Indenture with respect to
Securities of a series pursuant to Section 8.02 or Section 8.03 hereof,
respectively, the escrow trust agreement may, at the Corporation's election, (1)
enable the Corporation to direct the Trustee to invest any money received by the
Trustee on the U.S. Government Obligations deposited in trust thereunder in
additional U.S. Government Obligations and (2) enable the Corporation to
withdraw monies or U.S. Government Obligations from the trust from time to time;
provided, that the condition specified in Section 8.02(1) or 8.03(1) is
satisfied immediately following any investment of such money by the Trustee or
the withdrawal of monies or U.S. Government Obligations from the trust by the
Corporation as the case may be.

     SECTION 8.05.  Repayment to Corporation.  The Trustee and the Paying Agent
shall promptly pay to the Corporation upon request any excess money or
securities held by them at any time.  The Trustee and the Paying Agent shall
pay, unless otherwise prohibited by mandatory provisions of applicable escheat
or abandoned or unclaimed property law, to the Corporation upon request any
money held by them for the payment of principal or interest, if any, that
remains unclaimed for two years.


                                   ARTICLE 9

                      AMENDMENTS, SUPPLEMENTS AND WAIVERS

     SECTION 9.01.  Without Consent of Holders.  The Corporation and the
Guarantor may amend or supplement this Indenture or the Securities of any series
without notice to or consent of any Securityholder:

          (1) to cure any ambiguity, omission, defect or inconsistency;

          (2)  to comply with Article 5;


                                    - 43 -
<PAGE>
 
          (3) to provide for uncertificated Securities in addition to or in
     place of certificated Securities;

          (4) to effectuate or comply with the provisions of Section 2.03(5) or
     7.08;

          (5) to change or eliminate any of the provisions of this Indenture;
     provided, however, that any such change or elimination shall become
     effective only when there is no outstanding Security of any series created
     prior to the execution of such amendment or supplement that is entitled to
     the benefit of such provision;

          (6) to make any change that does not materially adversely affect the
     rights of any Holder of any Security of that series; or

          (7) to add or change or eliminate any provisions of this Indenture as
     shall be necessary or desirable in accordance with any amendments to the
     TIA.

     The Trustee may waive compliance by the Corporation or the Guarantor with
any provision of this Indenture or the Securities of any series without notice
to or consent of any Securityholder if the waiver does not materially adversely
affect the rights of any Holder of any Securities of that series.

     SECTION 9.02.  With Consent of Holders.  The Corporation and the Guarantor
may amend or supplement this Indenture or the Securities without notice to any
Securityholder but with the written consent of the Holders of not less than a
majority in principal amount of the Securities of each series affected and the
Trustee shall execute any such amendment or supplement at the direction of the
Corporation and the Guarantor.  The Holders of a majority in principal amount of
the Securities of each series affected may waive compliance by the Corporation
or the Guarantor with any provision of this Indenture or the Securities of each
such series or the related Guarantees without notice to any Securityholder.
However, without the consent of each Securityholder affected, an amendment,
supplement or waiver, including a waiver pursuant to Section 6.04, may not:

          (1) reduce the amount of Securities of any series whose Holders must
     consent to an amendment, supplement or waiver;

          (2) reduce the rate of or extend the time for payment of interest on
     any Security;

          (3) reduce the principal of or extend the fixed maturity of any
     Security;

          (4) reduce the portion of the principal amount of a Discounted
     Security payable upon acceleration of its maturity; or

                                    - 44 -
<PAGE>
 
          (5) make any Security payable in a currency or currency unit other
     than that stated in the Security.

It shall not be necessary for any Act of Holders under this Section to approve
the particular form of any proposed supplement or amendment, but it shall be
sufficient if such Act shall approve the substance thereof.

     SECTION 9.03.  Compliance with Trust Indenture Act of 1939.  Every
amendment to or supplement of this Indenture or the Securities shall comply with
the TIA as then in effect.

     SECTION 9.04.  Revocation and Effect of Consents.  A consent to an
amendment, supplement or waiver by a Holder of a Security shall bind the Holder
and every subsequent Holder of that Security or portion of the Security that
evidences the same debt as the consenting Holder's Security, even if notation of
the consent is not made on the Security.  However, any such Holder or subsequent
Holder may revoke the consent as to his Security or portion of the Security.
The Trustee must receive the notice of revocation before the date the amendment,
supplement or waiver becomes effective.

     After an amendment, supplement or waiver becomes effective, it shall bind
every Securityholder unless it makes a change described in clauses (2), (3), (4)
or (5) of Section 9.02.  In that case the amendment, supplement or waiver shall
bind each Holder of a Security who has consented to it and every subsequent
Holder of a Security or portion of a Security that evidences the same debt as
the consenting Holder's Security.

     SECTION 9.05.  Notation on or Exchange of Securities.  If an amendment,
supplement or waiver changes the terms of a Security, the Trustee may require
the Holder of the Security to deliver it to the Trustee.  The Trustee may place
an appropriate notation on the Security about the changed terms and return it to
the Holder.  Alternatively, if the Corporation or the Trustee so determine, the
Corporation in exchange for the Security shall issue and the Trustee shall
authenticate a new Security that reflects the changed terms.

     SECTION 9.06.  Trustee to Sign Amendments, etc.  The Trustee shall sign any
amendment, supplement or waiver authorized pursuant to this Article if the
amendment, supplement or waiver does not adversely affect the rights, duties,
liabilities or immunities of the Trustee.  If it does, the Trustee may but need
not sign it.  In signing such amendment, supplement or waiver the Trustee shall
be entitled to receive, and (subject to Section 7.01) shall be fully protected
in relying upon, an Opinion of Counsel stating that such amendment, supplement
or waiver is authorized or permitted by this Indenture.  Neither the Corporation
nor the Guarantor may sign an amendment or supplement unless authorized by an
appropriate Board Resolution.


                                    - 45 -
<PAGE>
 
                                 ARTICLE 10

                            GUARANTEE OF SECURITIES


          SECTION 10.01.  Unconditional Guarantee.  The Guarantor hereby fully
and unconditionally guarantees to each Holder of a Security authenticated and
delivered by the Trustee, and to the Trustee, the due and punctual payment of
the principal of and interest, if any, on such Security, when and as the same
shall become due and payable, whether by declaration thereof or otherwise in
accordance with the terms of such Security and of this Indenture.

          The Guarantor hereby agrees that its obligations hereunder shall be as
if it were principal debtor and not merely surety and shall be absolute and
unconditional, irrespective of, and shall be unaffected by, any invalidity,
irregularity or unenforceability of any such Security or this Indenture, any
failure to enforce the provisions of any such Security or this Indenture, any
waiver, modification or indulgence granted to the Corporation with respect
thereto, by the Holder of such Security or the Trustee, or any other
circumstances that otherwise may constitute a legal or equitable discharge of a
surety or guarantor; provided that, notwithstanding the foregoing, no such
waiver, modification, indulgence or circumstance shall, without the consent of
the Guarantor, increase the principal amount of a Security or the interest rate
thereon or increase any premium payable upon redemption thereof. The Guarantor
hereby agrees that this Guarantee shall be enforceable without any demand, suit
or proceeding first against the Corporation. The Guarantor hereby waives
diligence, presentment, demand of payment, filing of claims with a court in the
event of merger or bankruptcy of the Corporation, any right to require a
proceeding first against the Corporation, protest or notice with respect to any
such Security or the indebtedness evidenced thereby or with respect to any
sinking fund payment required by the terms of such Security and all demands
whatsoever and covenants that this Guarantee will not be discharged as to any
such Security except in accordance with Section 8.01 or 8.02 or by payment in
full of the principal of and interest, if any, on such Security.

          The Guarantor will be subrogated to all rights of the Holder against
the Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of the Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of and interest, if any, on such
Security shall have been paid in full.

          The Guarantee set forth in this Section 10.01 shall not be valid or
become obligatory for any purpose with respect to a Security until the
certificate of authentication on such Security shall have been signed by the
Trustee.

                                    - 46 -
<PAGE>
 
     SECTION 10.02.  Execution and Delivery of Guarantees.  Subject to
Section 2.01, the Guarantor hereby agrees to execute the Guarantee in
substantially the form set forth in Section 10.03 to be endorsed on each
Security authenticated and delivered by the Trustee. The delivery of such
Security by the Trustee, after the authentication thereof hereunder, shall
constitute due delivery of such Guarantee on behalf of the Guarantor.

     SECTION 10.03.  Form of Guarantee.  Guarantees to be endorsed on the
Securities shall, subject to Section 2.01, be in substantially the form set
forth below:


            GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

               For value received, Lockheed Martin Tactical Systems, Inc., a New
     York corporation (the "Guarantor"), hereby fully and unconditionally
     guarantees to the Holder of the Security upon which this Guarantee is
     endorsed the due and punctual payment of the principal of, premium, if any,
     and interest, if any, on said Security, when and as the same shall become
     due and payable, whether by declaration thereof or otherwise, according to
     the terms thereof and of the Indenture referred to therein.

               The Guarantor hereby agrees that its obligations hereunder shall
     be absolute and unconditional, irrespective of, and shall be unaffected by,
     any failure to enforce the provisions of said Security or said Indenture,
     any extension, renewal, settlement, compromise, waiver, consent or
     indulgence granted to the Corporation with respect thereto, by operation of
     law or otherwise, or any other circumstance which may otherwise constitute
     a legal or equitable discharge of a surety or guarantor; provided that,
     notwithstanding the foregoing, no such extension, renewal, settlement,
     compromise, waiver, consent, indulgence or circumstance shall, without the
     consent of the Guarantor, increase the principal amount of, premium, if
     any, or interest, if any, on said Security. The Guarantor hereby agrees
     that this Guarantee shall be enforceable without any demand, suit or
     proceeding first against the Corporation. The Guarantor hereby waives
     diligence, presentment, demand of payment, filing of claims with a court in
     the event of insolvency or bankruptcy of the Corporation, any right to
     require a proceeding first against the Corporation, protest or notice with
     respect to said Security or the indebtedness evidenced thereby or with
     respect to any sinking fund payment required by the terms of said Security
     and all demands whatsoever, and covenants that this Guarantee will not be
     discharged except in accordance with certain provisions set forth in the
     Indenture or by payment in full of the principal of, premium, if any, and
     interest, if any, on said Security.

                                    - 47 -
<PAGE>
 
          The Guarantor will be subrogated to all rights of the Holder against
     the Corporation in respect of any amount paid by the Guarantor pursuant to
     the provisions of this Guarantee; provided, however, that the Guarantor
     shall not be entitled to enforce, or to receive any payments arising out of
     or based upon, such right of subrogation until the principal of, premium,
     if any, and interest, if any, on said Security shall have been paid in
     full.

          Notwithstanding the foregoing, the obligations of the Guarantor under
     this Guarantee shall be limited to an amount equal to the largest amount
     that would not render its obligations under this Guarantee subject to
     avoidance under Section 548 of the United States Bankruptcy Code or any
     comparable provisions of any applicable state law.

          This Guarantee shall not be valid or become obligatory for any purpose
     until the certificate of authentication on said Security shall have been
     signed manually by the Trustee under the Indenture referred to in said
     Security. Terms used herein which are defined in such Indenture shall have
     the respective meanings assigned thereto in the Indenture.

          This Guarantee shall be deemed to be a contract made under the laws of
     the State of Maryland, and for all purposes shall be governed by and
     construed in accordance with the laws of such State, except as may
     otherwise be required by mandatory provisions of law.

          IN WITNESS WHEREOF, this Guarantee has been duly executed as of the
     date of authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By:______________________(SEAL)


                              ______________________________


                                   ARTICLE 11

                                 MISCELLANEOUS

     SECTION 11.01. TIA Controls.  If any provision of this Indenture limits,
qualifies or conflicts with another provision which is required to be included
in this Indenture by the TIA, the required provision shall control.


                                    - 48 -
<PAGE>
 
     SECTION 11.02  Notices.  Any notice or communication shall be sufficiently
given if in writing and delivered in person or mailed by first-class mail
addressed as follows:

     if to the Corporation:

                    Lockheed Martin Corporation
                    Attention:  Treasurer
                    6801 Rockledge Drive
                    Bethesda, Maryland  20817

     if to the Guarantor:

                    Lockheed Martin Tactical Systems, Inc.
                    Attention: Treasurer
                    6801 Rockledge Drive
                    Bethesda, Maryland 20817

     if to the Trustee:

                    First Trust of Illinois, National Association
                    400 N. Michigan Avenue
                    Chicago, Illinois  60611


     The Corporation, the Guarantor or the Trustee by notice to the others may
designate additional or different addresses for subsequent notices or
communications.

     Any notice or communication mailed to a Securityholder shall be mailed to
the Securityholder at the Securityholder's address as it appears on the
registration books of the Registrar and shall be sufficiently given if so mailed
within the time prescribed.

     Failure to mail a notice of communication to a Securityholder or any defect
in it shall not affect its sufficiency with respect to other Securityholders.
If a notice or communication is mailed in the manner provided above, it is duly
given, whether or not the addressee receives it.

     SECTION 11.03. Communication by Holders with Other Holders.
Securityholders may communicate pursuant to TIA Section 312(b) with other
Securityholders with respect to their rights under this Indenture or the
Securities.  The Corporation, the Guarantor, the Trustee, the Registrar and
anyone else shall have the protection of TIA Section 312(c).

     SECTION 11.04. Certificate and Opinion as to Conditions Precedent.  Upon
any request or application by the Corporation or the Guarantor to the Trustee to
take any action under this Indenture, the Corporation or the Guarantor, as the
case may be, shall furnish to the Trustee:


                                    - 49 -
<PAGE>
 
          (1) an Officers' Certificate stating that, in the opinion of the
     signers, all conditions precedent, if any, provided for in this Indenture
     relating to the proposed action have been complied with; and

          (2) an Opinion of Counsel stating that, in the opinion of such
     counsel, all such conditions precedent have been complied with.

     SECTION 11.05. Statements Required in Certificate or Opinion.  Each
certificate or opinion with respect to compliance with a condition or covenant
provided for in this Indenture shall include:

          (1) a statement that the person making such certificate or opinion has
     read such covenant or condition;

          (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3) a statement that, in the opinion of such person, the person has
     made such examination or investigation as is necessary to enable the person
     to express an informed opinion as to whether such covenant or condition has
     been complied with;

          (4) a statement as to whether or not, in the opinion of such person,
     such condition or covenant has been complied with.

     SECTION 11.06. When Treasury Securities Disregarded.  In determining
whether the Holders of the required principal amount of Securities have
concurred in any direction, waiver or consent, Securities owned by the
Corporation or the Guarantor, or by any person directly or indirectly
controlling or controlled by or under direct or indirect common control with the
Corporation or the Guarantor, shall be disregarded, except that for the purpose
of determining whether the Trustee shall be protected in relying on any such
direction, waiver or consent, only Securities which the Trustee knows are so
owned shall be so disregarded.  Also, subject to the foregoing, only Securities
outstanding at the time shall be considered in any such determination.

     SECTION 11.07. Rules by Trustee, Paying Agent, Registrar.  The Trustee may
make reasonable rules for action by or a meeting of Securityholders.  The Paying
Agent or Registrar may make reasonable rules for its functions.

     SECTION 11.08. Legal Holidays.  A "Legal Holiday" is a Saturday, a Sunday,
a legal holiday or a day on which banking institutions are not required to be
open.  If a payment date is a Legal Holiday at a place of payment, payment shall
be made at that place on the next succeeding day that is not a Legal Holiday,
and no interest shall accrue for the intervening period.  If a regular


                                    - 50 -
<PAGE>
 
record date is a Legal Holiday in the state or other jurisdiction in which the
Trustee maintains its principal place of business, then the record date shall be
the next succeeding day that is not a Legal Holiday in such state or other
jurisdiction.

     SECTION 11.09. Governing Law.  The laws of the State of Maryland shall
govern this Indenture and the Securities.

     SECTION 11.10. No Adverse Interpretation of Other Agreements.  This
Indenture may not be used to interpret another indenture, loan or debt agreement
of the Corporation, the Guarantor or any Subsidiary of the Corporation or the
Guarantor.  Any such indenture, loan or debt agreement may not be used to
interpret this Indenture.

     SECTION 11.11. No Recourse Against Others.  A director, officer, employee
or stockholder (other than the Corporation as issuer of the Debt Securities), as
such, of the Corporation or the Guarantor shall not have any liability for any
obligation of the Corporation or the Guarantor under the Securities or the
Guarantees or the Indenture or for any claim based on, with respect to or by
reason of such obligations or their creation.  All such liability is waived and
released as a condition of, and as partial consideration for, the execution of
this Indenture, the issue of the Securities and the execution of the Guarantees.

     SECTION 11.12. Securities in a Foreign Currency.  Unless otherwise
specified in an Officers' Certificate delivered pursuant to Section 2.01 of this
Indenture with respect to a particular series of Securities, whenever for
purposes of this Indenture any action may be taken by the holders of a specified
percentage in aggregate principal amount of Securities of all series at the time
outstanding and, at such time, there are outstanding Securities of any series
which are denominated in a Foreign Currency, then the principal amount of
Securities of such series which shall be deemed to be outstanding for the
purpose of taking such action shall be that amount of Dollars that could be
obtained for such amount at the Market Exchange Rate on the record date fixed
for such action or, if no record date is fixed, on the New York Banking Day
immediately preceding the date of such action.

     SECTION 11.13. Judgment Currency.  If, for the purpose of obtaining a
judgment in any court with respect to any obligation of the Corporation
hereunder or under any Security or any related coupon it shall become necessary
to convert into any other currency or currency unit any amount in the currency
or currency unit due hereunder or under such Security or coupon then such
conversion shall be made by the Currency Determination Agent at the Market
Exchange Rate as in effect on the date of entry of the judgment (the "Judgment
Date").  If pursuant to any such judgment, conversion shall be made on a date
(the "Substitute Date") other than the Judgment Date and there shall occur a
change between the Market Exchange Rate as in effect on the Judgment Date and
the Market Exchange Rate as in effect on the Substitute Date, the


                                    - 51 -
<PAGE>
 
Corporation agrees to pay such additional amounts (if any) as may be necessary
to ensure that the amount paid is equal to the amount in such other currency or
currency unit which, when converted at  the Market Exchange Rate as in effect on
the Judgment Date, is the amount due hereunder or under such Security or coupon.
Any amount due from the Corporation under this Section shall be due as a
separate debt and is not to be affected by or merged into any judgment being
obtained for any other sums due hereunder or with respect to any Security or
coupon.  In no event, however, shall the Corporation be required to pay more in
the currency or currency unit due hereunder or under such Security or coupon at
the Market Exchange Rate as in effect on the Judgment Date than the amount of
currency or currency unit stated to be due hereunder or under such Security or
coupon so that in any event the Corporation's obligations hereunder or under
such Security or coupon will be effectively maintained as obligations in such
currency or currency unit, and the Corporation shall be entitled to withhold (or
be reimbursed for, as the case may be) any excess of the amount actually
realized upon any such conversion on the Substitute Date over the amount due and
payable on the Judgment Date.

     SECTION 11.14. Successors.  All agreements of the Corporation and the
Guarantor in this Indenture and the Securities and the related Guarantees shall
bind its successor.  All agreements of the Trustee in this Indenture shall bind
its successor.

     SECTION 11.15. Duplicate Originals.  The parties may sign any number of
copies of this Indenture.  One signed copy is enough to prove this Indenture.

     SECTION 11.16. Acts of Holders; Record Dates.

          (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Corporation.
Such instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments.  Proof of execution of any such instrument or of
a writing appointing any such agent shall be sufficient for any purpose of this
Indenture and (subject to Section 7.1(e)) conclusive in favor of the Trustee and
the Corporation, if made in the manner provided in this Section.

          (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgements of deeds, certifying that the individual signing
such instrument or writing


                                    - 52 -
<PAGE>
 
acknowledged to such officer the execution thereof.  Where such execution is a
by a signer acting in a capacity other than such signer's individual capacity,
such certificate or affidavit shall also constitute sufficient proof of such
signer's authority.  The fact and date of the execution of any such instrument
or writing, or the authority of the Person executing the same, may also be
proved in any other manner which the Trustee deems sufficient.

          (c) The Corporation may, in the circumstances permitted by the TIA,
fix any day as the record date for the purpose of determining the Holders of
Securities of any series entitled to give or take any request, demand,
authorization, direction, notice, consent, waiver or other action, or to vote on
any action, authorized or permitted to be given or taken by Holders of
Securities of such series.  If not set by the Corporation prior to the first
solicitation of a Holder of Securities of such series made by any person in
respect of any such action, or, in the case of any such vote, prior to such
vote, the record date for any such action or vote shall be the 30th day (or, if
later, the date of the most recent list of Holders required to be provided
pursuant to Section 2.6) prior to such first solicitation or vote, as the case
may be.  With regard to any record date for action to be taken by the Holders of
one or more series of Securities, only the Holders of Securities of such series
on such date (or their duly designated proxies) shall be entitled to give or
take, or vote on, the relevant action.

                                    - 53 -
<PAGE>
 
                                   SIGNATURES



Attest:                             LOCKHEED MARTIN CORPORATION
 

/s/ Lillian M. Trippett             By: /s/ Walter E. Skowronski   (Seal)
------------------------------          ---------------------------      
Secretary                               Walter E. Skowronski
                                        Vice President and Treasurer


Attest:                             LOCKHEED MARTIN TACTICAL
                                      SYSTEMS, INC., as Guarantor
 

/s/ Lillian M. Trippett             By: /s/ Walter E. Skowronski   (Seal)
------------------------------          ---------------------------      
Secretary                               Walter E. Skowronski
                                        Vice President and Treasurer


Attest:                             FIRST TRUST OF ILLINOIS,
                                      NATIONAL ASSOCIATION, as Trustee
 

/s/ John W. Porter                  By: /s/ Patricia M. Trlak      (Seal)
------------------------------          ---------------------------      
Secretary                               Assistant Vice President


                                    - 54 -

<PAGE>
 
                                GLOBAL SECURITY

             NOT TO BE EXCHANGED FOR SECURITIES IN DEFINITIVE FORM
                                _______________

No. TY-___                                                          $___________
                                                               CUSIP 539830 AA 7

                          LOCKHEED MARTIN CORPORATION

                              6.55% Note Due 1999


LOCKHEED MARTIN CORPORATION, a Maryland corporation, for value received, hereby
promises to pay to ------ CEDE & CO. ------ or registered assigns, the principal
sum of _________________________________________________________________
DOLLARS on May 15, 1999.

     Interest Payment Dates:  November 15 and May 15

     Record Dates:  November 1 and May 1


            Additional provisions of this Note are set forth herein.

                                 LOCKHEED MARTIN CORPORATION


                                 By:___________________________(SEAL)
                                    Vice President and Treasurer


                                 By:___________________________
                                    Vice President and Secretary

Dated:  ___________, 1996

Authenticated:

This is one of the Securities
of the series designated herein
and referred to in the
within-mentioned Indenture.

FIRST TRUST OF ILLINOIS,
  NATIONAL ASSOCIATION, as Trustee


By:__________________________
<PAGE>

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF 
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE CORPORATION OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY A REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN 
DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE 
DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO 
THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY 
NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF ANY SUCCESSOR DEPOSITARY.
 

                          LOCKHEED MARTIN CORPORATION

                              6.55% Note Due 1999


      1.  Interest.  Lockheed Martin Corporation ("Corporation"), a Maryland
corporation, promises to pay interest on the principal amount of this Note at
the rate per annum shown above.  The Corporation will pay interest semiannually
on November 15 and May 15 of each year.  Interest on the Notes will accrue from
the most recent date to which interest has been paid or, if no interest has been
paid, from May 15, 1996.  Interest will be computed on the basis of a 360-day
year of twelve 30-day months.

      2.  Method of Payment.  The Corporation will pay interest on the Notes
(except defaulted interest, which shall be paid as set forth below) to the
persons who are registered Holders of Notes at the close of business on the
record date for the next interest payment date even though the Notes are
cancelled after the record date and on or before the interest payment date.  Any
such interest not so punctually paid or duly provided for will forthwith cease
to be payable to the Holder on such regular record date and may either be paid
to the Person in whose name this Note (or one or more predecessor Notes) is
registered at the close of business on a special record date for the payment of
such defaulted interest to be fixed by the Corporation, notice whereof shall be
given to Holders of Notes not less than 15 days prior to such special record
date, or may be paid at any time in any other lawful manner, all as more fully
provided in the Indenture.  Holders must surrender the Notes to a Paying Agent
to collect principal payments.  The Corporation will pay principal and interest
in money of the United States that at the time of payment is legal tender for
payment of public and private debts.  However, the Corporation may pay principal
and interest by its check payable in such money.  It may mail an interest check
to a Holder's registered address.  To the extent lawful, the Corporation shall
pay interest on overdue principal at the rate borne by the Notes and shall pay
interest on overdue installments of interest at the same rate.

      3.  Paying Agent and Registrar.  Initially, First Trust of Illinois,
National Association ("Trustee"), will act as Paying Agent and Registrar.  The
Corporation may change any Paying Agent, Registrar or co-registrar without
notice.  The Corporation or any of its Subsidiaries (as defined in the
Indenture) may act as Paying Agent, Registrar or co-registrar.

      4.  Indenture.  The Corporation issued the Notes under an Indenture dated
as of May 15, 1996 ("Indenture"), between the Corporation, the Guarantor and the
Trustee.  The terms of the Notes include those stated in the Indenture and those
made part of the Indenture by reference to the Trust Indenture Act of 1939 
(15 U.S. Code (S)(S) 77aaa-77bbbb) ("Act").  The Notes are subject to all such
terms, and Holders are referred to the Indenture, all applicable supplemental
indentures and the Act for a statement of those terms.

                                     - 2 -
<PAGE>
 
As provided in the Indenture, Securities may be issued in one or more series,
which different series may be issued in various aggregate principal amounts, may
mature at different times, may bear interest, if any, at different rates, may be
subject to different redemption provisions, if any, may be subject to different
sinking, purchase or analogous funds, if any, may be subject to different
covenants and Events of Default and may otherwise vary as provided or permitted
in the Indenture.  This Note is one of a series of the Notes designated on the
face hereof, limited in aggregate principal amount to $500,000,000 (except as
provided or permitted in the Indenture).

      5.  Redemption.  The Notes are not redeemable by the Corporation.

      6.  Denominations; Transfer; Exchange.  The Notes are registered in global
form and Holders shall not be entitled to receive Notes in definitive form
unless specifically required by the provisions of the Indenture or unless the
Corporation shall subsequently determine to issue Notes in definitive form.  A
Holder may transfer or exchange Notes only in accordance with the Indenture.
The Registrar may require a Holder, among other things, to furnish appropriate
endorsements and transfer documents and to pay any taxes and fees required by
law or permitted by the Indenture.  Also, it need not transfer or exchange any
Notes for a period of 15 days before a selection of Notes to be redeemed or
before an interest payment date.

      This Note is issued in the form of a Global Security and is exchangeable 
in whole, but not in part, for Notes registered in the names of Persons other 
than the Depositary or its nominee or in the name of a successor to the 
Depositary or a nominee of such successor depositary only if (i) the Depositary 
notifies the Corporation that it is unwilling or unable to continue as 
Depositary for this Note or if at any time such Depositary shall no longer be 
registered or in good standing under the Securities Exchange Act of 1934, as 
amended, or other applicable statue or regulation, and, in either case, a 
successor depositary is not appointed by the Corporation within 90 days of the 
receipt by the Corporation of such notice or of the Corporation becoming aware 
of such condition, or (ii) the Corporation in its discretion at any time 
determines not to have all of the Notes represented by one or more Global 
Security or Securities. If this Note is exchangeable pursuant to the preceding 
sentence, it shall be exchangeable for Notes of like tenor and terms in 
definitive form in aggregate principal amount equal to the principal amount of 
the Global Security. Subject to the foregoing, this Note is not exchangeable, 
except for a Note or Notes of the same aggregate denominations to the name of a 
successor to the Depositary or a nominee of such successor depositary.
      
      7.  Persons Deemed Owners.  The registered Holder of this Note may be
treated as the owner of it for all purposes, and neither the Corporation, the
Guarantor, the Trustee, nor any Registrar, Paying Agent or co-registrar shall be
affected by notice to the contrary.

      8.  Unclaimed Money.  If money for the payment of principal or interest
remains unclaimed for two years, the Trustee or Paying Agent will pay, unless
otherwise prohibited by mandatory provisions of applicable abandoned property
law, the money back to the Corporation at its request.  After that, Holders
entitled to unclaimed money must look only to the Corporation and not to the
Trustee for payment unless an abandoned property law designates another person.

      9.  Defeasance.  The Indenture contains provisions for defeasance at any
time of the entire principal of the Securities of any series upon compliance by
the Corporation with certain conditions set forth therein.

     10.  Amendment; Supplement; Waiver.  Subject to certain exceptions as
therein provided, the Indenture or the Notes may be amended or supplemented with
the written consent of the Holders of not less than a majority in principal
amount of the Notes and, subject to certain exceptions and limitations as
provided in the Indenture, any past default or compliance with any provision may
be

                                     - 3 -



<PAGE>
 
waived with the consent of the Holders of a majority in principal amount of the
Notes.  Without the consent of any Holder, the Indenture or the Notes may be
amended or supplemented, for among other reasons, to cure any ambiguity,
omission, defect or inconsistency, to provide for uncertificated Notes in
addition to or in place of certificated Notes or to make any change that does
not materially adversely affect the rights of any Holder.  Without the consent
of any Holder, the Trustee may waive compliance with any provision of the
Indenture or the Notes if the waiver does not materially adversely affect the
rights of any Holder.

     11.  Restrictive Covenants.  The Indenture does not limit unsecured debt of
the Guarantor or the Corporation or any of their Subsidiaries.  It does limit
certain Liens and Sale-Leaseback Transactions.  The limitations are subject to a
number of important qualifications and exceptions.  Once a year the Guarantor
and the Corporation must report to the Trustee on compliance with the
limitations.

     12.  Successors.  When a successor entity assumes all the obligations of
the Corporation or the Guarantor or either of their successors under the Notes
and the Indenture, the predecessor corporation will be released from those
obligations.

     13.  Defaults and Remedies.  An Event of Default is:  default for 30 days
in payment of any interest on the Notes; default in payment of any principal on
the Notes; failure by the Corporation or the Guarantor for 90 days after notice
to it to comply with any of its other agreements in the Indenture or the Notes
or the Guarantees; and certain events of bankruptcy or insolvency.  If an Event
of Default with respect to Notes of this series shall occur and be continuing,
the principal of the Notes of this series and accrued interest thereon may be
declared due and payable in the manner and with the effect provided in the
Indenture.  Holders of Notes may not enforce the Indenture or the Notes except
as provided in the Indenture.  The Trustee may refuse to enforce the Indenture
or the Notes unless it receives indemnity satisfactory to it.  Subject to
certain limitations, Holders of a majority in principal amount of the Notes may
direct the Trustee in its exercise of any trust or power.  The Trustee may
withhold from Holders notice of any continuing default (except a default in
payment of principal or interest) if a committee of its trust officers in good
faith determines that withholding notice is in the interests of such Holders.

     14.  Trustee Dealings with the Corporation.  First Trust of Illinois,
National Association, the Trustee under the Indenture, in its individual or any
other capacity may make loans to, accept deposits from and perform services for
the Guarantor or the Corporation or any of their affiliates, and may otherwise
deal with the Corporation or its affiliates as if it were not Trustee.

     15.  No Recourse Against Others.  A director, officer, employee or
stockholder (other than the Corporation), as such, of


                                     - 4 -
<PAGE>
 
the Corporation or the Guarantor shall not have any liability for any
obligations of the Corporation or the Guarantor under the Notes or the Indenture
or for any claim based on, in respect of, or by reason of such obligations or
their creation.  Each Holder by accepting a Note waives and releases all such
liability.  This waiver and release are part of the consideration for the issue
of the Notes.

     16.  Authentication.  This Note shall not be valid until the Trustee
manually signs the certificate of authentication on the first page of this Note.

     17.  Abbreviations.  Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT 
(= tenants by the entireties), JT TEN (= joint tenants with right of 
survivorship and not as tenants in common), CUST (= Custodian) and U/G/M/A 
(= Uniform Gifts to Minors Act).

     18.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the 
Committee on Uniform Security Identification Procedures, the Corporation had 
caused CUSIP numbers to be printed on the Note and has directed the Trustee to 
use CUSIP numbers in notices of redemption as a convenience to Holders. No 
representation is made as to accuracy of any of such numbers either as printed 
on the Note or as contained in any notice of redemption and reliance may be 
placed only on the other identification numbers placed thereon.

     19.  Miscellaneous.  This Note shall for all purposes be governed by, and
construed in accordance with, the laws of the State of Maryland.

     All terms used in this Note and Guarantee which are defined in the
Indenture shall have the meanings assigned to them in the Indenture.


              GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

     For value received, Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), hereby fully and unconditionally guarantees to
the Holder of the Security upon which this Guarantee is endorsed the due and
punctual payment of the principal of, premium, if any, and interest, if any, on
said Security, when and as the same shall become due and payable, whether by
declaration thereof or otherwise, according to the terms thereof and of the
Indenture referred to therein.

     The Guarantor hereby agrees that its obligations hereunder shall be
absolute and unconditional, irrespective of, and shall be unaffected by, any
failure to enforce the provisions of said Security or said Indenture, any
extension, renewal, settlement, compromise, waiver, consent or indulgence
granted to the Corporation with respect thereto, by operation of law or
otherwise, or any other circumstance which may otherwise constitute a legal or
equitable discharge of a surety or guarantor; provided that,

                                     - 5 -
<PAGE>
 
notwithstanding the foregoing, no such extension, renewal, settlement,
compromise, waiver, consent, indulgence or circumstance shall, without the
consent of the Guarantor, increase the principal amount of, premium, if any, or
interest, if any, on said Security.  The Guarantor hereby agrees that this
Guarantee shall be enforceable without any demand, suit or proceeding first
against the Corporation.  The Guarantor hereby waives diligence, presentment,
demand of payment, filing of claims with a court in the event of insolvency or
bankruptcy of the Corporation, any right to require a proceeding first against
the Corporation, protest or notice with respect to said Security or the
indebtedness evidenced thereby or with respect to any sinking fund payment
required by the terms of said Security and all demands whatsoever, and covenants
that this Guarantee will not be discharged except in accordance with certain
provisions set forth in the Indenture or by payment in full of the principal of,
premium, if any, and interest, if any, on said Security.

     The Guarantor will be subrogated to all rights of the Holder against the
Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of this Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of, premium, if any, and interest,
if any, on said Security shall have been paid in full.

     Notwithstanding the foregoing, the obligations of the Guarantor under this
Guarantee shall be limited to an amount equal to the largest amount that would
not render its obligations under this Guarantee subject to avoidance under
Section 548 of the United States Bankruptcy Code or any comparable provisions of
any applicable state law.

     This Guarantee shall not be valid or become obligatory for any purpose
until the certificate of authentication on said Security shall have been signed
manually by the Trustee under the Indenture referred to in said Security. Terms
used herein which are defined in such Indenture shall have the respective
meanings assigned thereto in the Indenture.

     This Guarantee shall be deemed to be a contract made under the laws of the
State of Maryland, and for all purposes shall be governed by and construed in
accordance with the laws of such State, except as may otherwise be required by
mandatory provisions of law.


                                     - 6 -
<PAGE>
 
     IN WITNESS WHEREOF, this Guarantee has been duly executed as of the date of
authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By:__________________________(SEAL)
                                 Vice President and Treasurer


                              By:__________________________
                                 Vice President and Assistant
                                    Secretary


                                     - 7 -
<PAGE>
 
     The Corporation will furnish to any Holder upon written request and without
charge a copy of the Indenture.  Requests may be made to:  Lockheed Martin
Corporation, 6801 Rockledge Drive, Bethesda, Maryland  20817, Attention:
Secretary.


                         _____________________________



I or we assign and transfer to

    Insert social security or other identifying number of assignee

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


________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
            (Print or type name, address and zip code of assignee)

this Note and irrevocably appoint _________________________________ agent to
transfer this Note on the books of the Corporation.  The agent may substitute
another to act for him.

Dated:  ________________________________________________________________________

Signed:  _______________________________________________________________________
                 (Sign exactly as name appears on the other side of this Note)

                                                                                
                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         


                                    - 8 - 

<PAGE>
 
                                GLOBAL SECURITY
             NOT TO BE EXCHANGED FOR SECURITIES IN DEFINITIVE FORM
                                _______________

No. FY-___                                                         $___________
                                                              CUSIP 539830 AB 5

                          LOCKHEED MARTIN CORPORATION

                              6.85% Note Due 2001


LOCKHEED MARTIN CORPORATION, a Maryland corporation, for value received, hereby
promises to pay to ------ CEDE & CO. ------ or registered assigns, the principal
sum of _________________________________________________________________
DOLLARS on May 15, 2001.

     Interest Payment Dates:  November 15 and May 15

     Record Dates:  November 1 and May 1


     Additional provisions of this Note are set forth herein.

                                       LOCKHEED MARTIN CORPORATION


                                       By:___________________________(SEAL)
                                          Vice President and Treasurer


                                       By:___________________________
                                          Vice President and Secretary

Dated:  __________, 1996

Authenticated:

This is one of the Securities
of the series designated herein
and referred to in the
within-mentioned Indenture.

FIRST TRUST OF ILLINOIS,
  NATIONAL ASSOCIATION, as Trustee


By:__________________________
<PAGE>

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF 
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE CORPORATION OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY A REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN 
DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE 
DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO 
THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY 
NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF ANY SUCCESSOR DEPOSITARY.
 
 
                          LOCKHEED MARTIN CORPORATION

                              6.85% Note Due 2001


      1.  Interest.  Lockheed Martin Corporation ("Corporation"), a Maryland
corporation, promises to pay interest on the principal amount of this Note at
the rate per annum shown above.  The Corporation will pay interest semiannually
on November 15 and May 15 of each year.  Interest on the Notes will accrue from
the most recent date to which interest has been paid or, if no interest has been
paid, from May 15, 1996.  Interest will be computed on the basis of a 360-day
year of twelve 30-day months.

      2.  Method of Payment.  The Corporation will pay interest on the Notes
(except defaulted interest, which shall be paid as set forth below) to the
persons who are registered Holders of Notes at the close of business on the
record date for the next interest payment date even though the Notes are
cancelled after the record date and on or before the interest payment date.  Any
such interest not so punctually paid or duly provided for will forthwith cease
to be payable to the Holder on such regular record date and may either be paid
to the Person in whose name this Note (or one or more predecessor Notes) is
registered at the close of business on a special record date for the payment of
such defaulted interest to be fixed by the Corporation, notice whereof shall be
given to Holders of Notes not less than 15 days prior to such special record
date, or may be paid at any time in any other lawful manner, all as more fully
provided in the Indenture.  Holders must surrender the Notes to a Paying Agent
to collect principal payments.  The Corporation will pay principal and interest
in money of the United States that at the time of payment is legal tender for
payment of public and private debts.  However, the Corporation may pay principal
and interest by its check payable in such money.  It may mail an interest check
to a Holder's registered address.  To the extent lawful, the Corporation shall
pay interest on overdue principal at the rate borne by the Notes and shall pay
interest on overdue installments of interest at the same rate.

      3.  Paying Agent and Registrar.  Initially, First Trust of Illinois,
National Association ("Trustee"), will act as Paying Agent and Registrar.  The
Corporation may change any Paying Agent, Registrar or co-registrar without
notice.  The Corporation or any of its Subsidiaries (as defined in the
Indenture) may act as Paying Agent, Registrar or co-registrar.

      4.  Indenture.  The Corporation issued the Notes under an Indenture dated
as of May 15, 1996 ("Indenture"), between the Corporation, the Guarantor and the
Trustee.  The terms of the Notes include those stated in the Indenture and those
made part of the Indenture by reference to the Trust Indenture Act of 1939 
(15 U.S. Code (S)(S) 77aaa-77bbbb) ("Act").  The Notes are subject to all such
terms, and Holders are referred to the Indenture, all applicable


                                     - 2 -
<PAGE>
 
supplemental indentures and the Act for a statement of those terms.  As provided
in the Indenture, the Securities may be issued in one or more series, which
different series may be issued in various aggregate principal amounts, may
mature at different times, may bear interest, if any, at different rates, may be
subject to different redemption provisions, if any, may be subject to different
sinking, purchase or analogous funds, if any, may be subject to different
covenants and Events of Default and may otherwise vary as provided or permitted
in the Indenture.  This Note is one of a series of the Notes designated on the
face hereof, limited in aggregate principal amount to $750,000,000 (except as
provided or permitted in the Indenture).

      5.  Redemption.  The Notes are not redeemable by the Corporation.

      6.  Denominations; Transfer; Exchange.  The Notes are registered in global
form unless specifically required by the provisions of the Indenture or unless
the Corporation shall subsequently determine to issue Notes in definitive form.
A Holder may transfer or exchange Notes in accordance with the Indenture.  The
Registrar may require a Holder, among other things, to furnish appropriate
endorsements and transfer documents and to pay any taxes and fees required by
law or permitted by the Indenture.  Also, it need not transfer or exchange any
Notes for a period of 15 days before a selection of Notes to be redeemed or
before an interest payment date.

      This Note is issued in the form of a Global Security and is exchangeable 
in whole, but not in part, for Notes registered in the names of Persons other 
than the Depositary or its nominee or in the name of a successor to the 
Depositary or a nominee of such successor depositary only if (i) the Depositary 
notifies the Corporation that it is unwilling or unable to continue as 
Depositary for this Note or if at any time such Depositary shall no longer be 
registered or in good standing under the Securities Exchange Act of 1934, as 
amended, or other applicable statue or regulation, and, in either case, a 
successor depositary is not appointed by the Corporation within 90 days of the 
receipt by the Corporation of such notice or of the Corporation becoming aware 
of such condition, or (ii) the Corporation in its discretion at any time 
determines not to have all of the Notes represented by one or more Global 
Security or Securities. If this Note is exchangeable pursuant to the preceding 
sentence, it shall be exchangeable for Notes of like tenor and terms in 
definitive form in aggregate principal amount equal to the principal amount of 
the Global Security. Subject to the foregoing, this Note is not exchangeable, 
except for a Note or Notes of the same aggregate denominations to the name of a 
successor to the Depositary or a nominee of such successor depositary.

      7.  Persons Deemed Owners.  The registered Holder of this Note may be
treated as the owner of it for all purposes, and neither the Corporation, the
Guarantor, the Trustee, nor any Registrar, Paying Agent or co-registrar shall be
affected by notice to the contrary.

      8.  Unclaimed Money.  If money for the payment of principal or interest
remains unclaimed for two years, the Trustee or Paying Agent will pay, unless
otherwise prohibited by mandatory provisions of applicable abandoned property
law, the money back to the Corporation at its request.  After that, Holders
entitled to unclaimed money must look only to the Corporation and not to the
Trustee for payment unless an abandoned property law designates another person.

      9.  Defeasance.  The Indenture contains provisions for defeasance at any
time of the entire principal of the Securities of any series upon compliance by
the Corporation with certain conditions set forth therein.

     10.  Amendment; Supplement; Waiver.  Subject to certain exceptions as
therein provided, the Indenture or the Notes may be amended or supplemented with
the written consent of the Holders of not less than a majority in principal
amount of the Notes and, subject to certain exceptions and limitations as
provided in the

                                     - 3 -
<PAGE>
 
Indenture, any past default or compliance with any provision may be waived with
the consent of the Holders of a majority in principal amount of the Notes.
Without the consent of any Holder, the Indenture or the Notes may be amended or
supplemented, for among other reasons, to cure any ambiguity, omission, defect
or inconsistency, to provide for uncertificated Notes in addition to or in place
of certificated Notes or to make any change that does not materially adversely
affect the rights of any Holder.  Without the consent of any Holder, the Trustee
may waive compliance with any provision of the Indenture or the Notes if the
waiver does not materially adversely affect the rights of any Holder.

     11.  Restrictive Covenants.  The Indenture does not limit unsecured debt of
the Guarantor or the Corporation or any of their Subsidiaries.  It does limit
certain Liens and Sale-Leaseback Transactions.  The limitations are subject to a
number of important qualifications and exceptions.  Once a year the Guarantor
and the Corporation must report to the Trustee on compliance with the
limitations.

     12.  Successors.  When a successor entity assumes all the obligations of
the Corporation or the Guarantor or either of their successors under the Notes
and the Indenture, the predecessor corporation will be released from those
obligations.

     13.  Defaults and Remedies.  An Event of Default is:  default for 30 days
in payment of any interest on the Notes; default in payment of any principal on
the Notes; failure by the Corporation or the Guarantor for 90 days after notice
to it to comply with any of its other agreements in the Indenture or the Notes
or the Guarantees; and certain events of bankruptcy or insolvency.  If an Event
of Default with respect to Notes of this series shall occur and be continuing,
the principal of the Notes of this series and accrued interest thereon may be
declared due and payable in the manner and with the effect provided in the
Indenture.  Holders of Notes may not enforce the Indenture or the Notes except
as provided in the Indenture.  The Trustee may refuse to enforce the Indenture
or the Notes unless it receives indemnity satisfactory to it.  Subject to
certain limitations, Holders of a majority in principal amount of the Notes may
direct the Trustee in its exercise of any trust or power.  The Trustee may
withhold from Holders notice of any continuing default (except a default in
payment of principal or interest) if a committee of its trust officers in good
faith determines that withholding notice is in the interests of such Holders.

     14.  Trustee Dealings with the Corporation.  First Trust of Illinois,
National Association, the Trustee under the Indenture, in its individual or any
other capacity may make loans to, accept deposits from and perform services for
the Guarantor or the Corporation or any of their affiliates, and may otherwise
deal with the Corporation or its affiliates as if it were not Trustee.


                                     - 4 -
<PAGE>
 
     15.  No Recourse Against Others.  A director, officer, employee or
stockholder (other than the Corporation), as such, of the Corporation or the
Guarantor shall not have any liability for any obligations of the Corporation or
the Guarantor under the Notes or the Indenture or for any claim based on, in
respect of, or by reason of such obligations or their creation.  Each Holder by
accepting a Note waives and releases all such liability.  This waiver and
release are part of the consideration for the issue of the Notes.

     16.  Authentication.  This Note shall not be valid until the Trustee
manually signs the certificate of authentication on the first page of this Note.

     17.  Abbreviations.  Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian) and U/G/M/A (= Uniform Gifts
to Minors Act).

     18.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the 
Committee on Uniform Security Identification Procedures, the Corporation had 
caused CUSIP numbers to be printed on the Note and has directed the Trustee to 
use CUSIP numbers in notices of redemption as a convenience to Holders. No 
representation is made as to accuracy of any of such numbers either as printed 
on the Note or as contained in any notice of redemption and reliance may be 
placed only on the other identification numbers placed thereon.

     19.  Miscellaneous.  This Note shall for all purposes be governed by, and
construed in accordance with, the laws of the State of Maryland.

     All terms used in this Note and Guarantee which are defined in the
Indenture shall have the meanings assigned to them in the Indenture.


              GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

     For value received, Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), hereby fully and unconditionally guarantees to
the Holder of the Security upon which this Guarantee is endorsed the due and
punctual payment of the principal of, premium, if any, and interest, if any, on
said Security, when and as the same shall become due and payable, whether by
declaration thereof or otherwise, according to the terms thereof and of the
Indenture referred to therein.

     The Guarantor hereby agrees that its obligations hereunder shall be
absolute and unconditional, irrespective of, and shall be unaffected by, any
failure to enforce the provisions of said Security or said Indenture, any
extension, renewal, settlement, compromise, waiver, consent or indulgence
granted to the


                                     - 5 -
<PAGE>
 
Corporation with respect thereto, by operation of law or otherwise, or any other
circumstance which may otherwise constitute a legal or equitable discharge of a
surety or guarantor; provided that, notwithstanding the foregoing, no such
extension, renewal, settlement, compromise, waiver, consent, indulgence or
circumstance shall, without the consent of the Guarantor, increase the principal
amount of, premium, if any, or interest, if any, on said Security.  The
Guarantor hereby agrees that this Guarantee shall be enforceable without any
demand, suit or proceeding first against the Corporation.  The Guarantor hereby
waives diligence, presentment, demand of payment, filing of claims with a court
in the event of insolvency or bankruptcy of the Corporation, any right to
require a proceeding first against the Corporation, protest or notice with
respect to said Security or the indebtedness evidenced thereby or with respect
to any sinking fund payment required by the terms of said Security and all
demands whatsoever, and covenants that this Guarantee will not be discharged
except in accordance with certain provisions set forth in the Indenture or by
payment in full of the principal of, premium, if any, and interest, if any, on
said Security.

     The Guarantor will be subrogated to all rights of the Holder against the
Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of this Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of, premium, if any, and interest,
if any, on said Security shall have been paid in full.

     Notwithstanding the foregoing, the obligations of the Guarantor under this
Guarantee shall be limited to an amount equal to the largest amount that would
not render its obligations under this Guarantee subject to avoidance under
Section 548 of the United States Bankruptcy Code or any comparable provisions of
any applicable state law.

     This Guarantee shall not be valid or become obligatory for any purpose
until the certificate of authentication on said Security shall have been signed
manually by the Trustee under the Indenture referred to in said Security. Terms
used herein which are defined in such Indenture shall have the respective
meanings assigned thereto in the Indenture.

     This Guarantee shall be deemed to be a contract made under the laws of the
State of Maryland, and for all purposes shall be governed by and construed in
accordance with the laws of such State, except as may otherwise be required by
mandatory provisions of law.

                                     - 6 -
<PAGE>
 
     IN WITNESS WHEREOF, this Guarantee has been duly executed as of the date of
authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.

                              By:__________________________(SEAL)
                                 Vice President and Treasurer


                              By:__________________________
                                 Vice President and Assistant
                                    Secretary



                                    - 7 - 
<PAGE>
 
     The Corporation will furnish to any Holder upon written request and without
charge a copy of the Indenture.  Requests may be made to:  Lockheed Martin
Corporation, 6801 Rockledge Drive, Bethesda, Maryland  20817, Attention:
Secretary.


                         _____________________________



I or we assign and transfer to

    Insert social security or other identifying number of assignee
   -----------------------------

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


________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
            (Print or type name, address and zip code of assignee)

this Note and irrevocably appoint _______________________________ agent to
transfer this Note on the books of the Corporation.  The agent may substitute
another to act for him.

Dated:  ________________________________________________________________________

Signed:  _______________________________________________________________________
             (Sign exactly as name appears on the other side of this Note)


                                                                                
                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         

                                     - 8 -

<PAGE>
 
                                GLOBAL SECURITY
             NOT TO BE EXCHANGED FOR SECURITIES IN DEFINITIVE FORM
                                _______________

No. TN-___                                                          $___________
                                                               CUSIP 539830 AC 3

                          LOCKHEED MARTIN CORPORATION

                              7.25% Note Due 2006


LOCKHEED MARTIN CORPORATION, a Maryland corporation, for value received, hereby
promises to pay to ------ CEDE & CO. ------ or registered assigns, the principal
sum of _________________________________________________________________
DOLLARS on May 15, 2006.

     Interest Payment Dates:  November 15 and May 15

     Record Dates:  November 1 and May 1


     Additional provisions of this Note are set forth herein.

                                    LOCKHEED MARTIN CORPORATION


                                    By:___________________________(SEAL)
                                       Vice President and Treasurer


                                    By:___________________________
                                       Vice President and Secretary

Dated:  __________, 1996

Authenticated:

This is one of the Securities
of the series designated herein
and referred to in the
within-mentioned Indenture.

FIRST TRUST OF ILLINOIS,
  NATIONAL ASSOCIATION, as Trustee


By:__________________________
<PAGE>

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF 
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE CORPORATION OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY A REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN 
DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE 
DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO 
THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY 
NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF ANY SUCCESSOR DEPOSITARY.
 
 
                          LOCKHEED MARTIN CORPORATION

                              7.25% Note Due 2006


      1.  Interest.  Lockheed Martin Corporation ("Corporation"), a Maryland
corporation, promises to pay interest on the principal amount of this Note at
the rate per annum shown above.  The Corporation will pay interest semiannually
on November 15 and May 15 of each year.  Interest on the Notes will accrue from
the most recent date to which interest has been paid or, if no interest has been
paid, from May 15, 1996.  Interest will be computed on the basis of a 360-day
year of twelve 30-day months.

      2.  Method of Payment.  The Corporation will pay interest on the Notes
(except defaulted interest, which shall be paid as set forth below) to the
persons who are registered Holders of Notes at the close of business on the
record date for the next interest payment date even though the Notes are
cancelled after the record date and on or before the interest payment date.  Any
such interest not so punctually paid or duly provided for will forthwith cease
to be payable to the Holder on such regular record date and may either be paid
to the Person in whose name this Note (or one or more predecessor Notes) is
registered at the close of business on a special record date for the payment of
such defaulted interest to be fixed by the Corporation, notice whereof shall be
given to Holders of Notes not less than 15 days prior to such special record
date, or may be paid at any time in any other lawful manner, all as more fully
provided in the Indenture.  Holders must surrender the Notes to a Paying Agent
to collect principal payments.  The Corporation will pay principal and interest
in money of the United States that at the time of payment is legal tender for
payment of public and private debts.  However, the Corporation may pay principal
and interest by its check payable in such money.  It may mail an interest check
to a Holder's registered address.  To the extent lawful, the Corporation shall
pay interest on overdue principal at the rate borne by the Notes and shall pay
interest on overdue installments of interest at the same rate.

      3.  Paying Agent and Registrar.  Initially, First Trust of Illinois,
National Association ("Trustee"), will act as Paying Agent and Registrar.  The
Corporation may change any Paying Agent, Registrar or co-registrar without
notice.  The Corporation or any of its Subsidiaries (as defined in the
Indenture) may act as Paying Agent, Registrar or co-registrar.

      4.  Indenture.  The Corporation issued the Notes under an Indenture dated
as of May 15, 1996 ("Indenture"), between the Corporation, the Guarantor and the
Trustee.  The terms of the Notes include those stated in the Indenture and those
made part of the Indenture by reference to the Trust Indenture Act of 1939 
(15 U.S. Code (S)(S) 77aaa-77bbbb) ("Act").  The Notes are subject to all such
terms, and Holders are referred to the Indenture, all applicable


                                     - 2 -
<PAGE>
 
supplemental indentures and the Act for a statement of those terms.  As provided
in the Indenture, the Securities may be issued in one or more series, which
different series may be issued in various aggregate principal amounts, may
mature at different times, may bear interest, if any, at different rates, may be
subject to different redemption provisions, if any, may be subject to different
sinking, purchase or analogous funds, if any, may be subject to different
covenants and Events of Default and may otherwise vary as provided or permitted
in the Indenture.  This Note is one of a series of the Notes designated on the
face hereof, limited in aggregate principal amount to $750,000,000 (except as
provided or permitted in the Indenture).

      5.  Redemption.  The Notes are not redeemable by the Corporation.

      6.  Denominations; Transfer; Exchange.  The Notes are registered in global
form unless specifically required by the provisions of the Indenture or unless
the Corporation shall subsequently determine to issue Notes in definitive form.
A Holder may transfer or exchange Notes in accordance with the Indenture.  The
Registrar may require a Holder, among other things, to furnish appropriate
endorsements and transfer documents and to pay any taxes and fees required by
law or permitted by the Indenture.  Also, it need not transfer or exchange any
Notes for a period of 15 days before a selection of Notes to be redeemed or
before an interest payment date.

      This Note is issued in the form of a Global Security and is exchangeable 
in whole, but not in part, for Notes registered in the names of Persons other 
than the Depositary or its nominee or in the name of a successor to the 
Depositary or a nominee of such successor depositary only if (i) the Depositary 
notifies the Corporation that it is unwilling or unable to continue as 
Depositary for this Note or if at any time such Depositary shall no longer be 
registered or in good standing under the Securities Exchange Act of 1934, as 
amended, or other applicable statue or regulation, and, in either case, a 
successor depositary is not appointed by the Corporation within 90 days of the 
receipt by the Corporation of such notice or of the Corporation becoming aware 
of such condition, or (ii) the Corporation in its discretion at any time 
determines not to have all of the Notes represented by one or more Global 
Security or Securities. If this Note is exchangeable pursuant to the preceding 
sentence, it shall be exchangeable for Notes of like tenor and terms in 
definitive form in aggregate principal amount equal to the principal amount of 
the Global Security. Subject to the foregoing, this Note is not exchangeable, 
except for a Note or Notes of the same aggregate denominations to the name of a 
successor to the Depositary or a nominee of such successor depositary.

      7.  Persons Deemed Owners.  The registered Holder of this Note may be
treated as the owner of it for all purposes, and neither the Corporation, the
Guarantor, the Trustee, nor any Registrar, Paying Agent or co-registrar shall be
affected by notice to the contrary.

      8.  Unclaimed Money.  If money for the payment of principal or interest
remains unclaimed for two years, the Trustee or Paying Agent will pay, unless
otherwise prohibited by mandatory provisions of applicable abandoned property
law, the money back to the Corporation at its request.  After that, Holders
entitled to unclaimed money must look only to the Corporation and not to the
Trustee for payment unless an abandoned property law designates another person.

      9.  Defeasance.  The Indenture contains provisions for defeasance at any
time of the entire principal of the Securities of any series upon compliance by
the Corporation with certain conditions set forth therein.

     10.  Amendment; Supplement; Waiver.  Subject to certain exceptions as
therein provided, the Indenture or the Notes may be amended or supplemented with
the written consent of the Holders of not less than a majority in principal
amount of the Notes and, subject to certain exceptions and limitations as
provided in the


                                     - 3 -
<PAGE>
 
Indenture, any past default or compliance with any provision may be waived with
the consent of the Holders of a majority in principal amount of the Notes.
Without the consent of any Holder, the Indenture or the Notes may be amended or
supplemented, for among other reasons, to cure any ambiguity, omission, defect
or inconsistency, to provide for uncertificated Notes in addition to or in place
of certificated Notes or to make any change that does not materially adversely
affect the rights of any Holder.  Without the consent of any Holder, the Trustee
may waive compliance with any provision of the Indenture or the Notes if the
waiver does not materially adversely affect the rights of any Holder.

     11.  Restrictive Covenants.  The Indenture does not limit unsecured debt of
the Guarantor or the Corporation or any of their Subsidiaries.  It does limit
certain Liens and Sale-Leaseback Transactions.  The limitations are subject to a
number of important qualifications and exceptions.  Once a year the Guarantor
and the Corporation must report to the Trustee on compliance with the
limitations.

     12.  Successors.  When a successor entity assumes all the obligations of
the Corporation or the Guarantor or either of their successors under the Notes
and the Indenture, the predecessor corporation will be released from those
obligations.

     13.  Defaults and Remedies.  An Event of Default is:  default for 30 days
in payment of any interest on the Notes; default in payment of any principal on
the Notes; failure by the Corporation or the Guarantor for 90 days after notice
to it to comply with any of its other agreements in the Indenture or the Notes
or the Guarantees; and certain events of bankruptcy or insolvency.  If an Event
of Default with respect to Notes of this series shall occur and be continuing,
the principal of the Notes of this series and accrued interest thereon may be
declared due and payable in the manner and with the effect provided in the
Indenture.  Holders of Notes may not enforce the Indenture or the Notes except
as provided in the Indenture.  The Trustee may refuse to enforce the Indenture
or the Notes unless it receives indemnity satisfactory to it.  Subject to
certain limitations, Holders of a majority in principal amount of the Notes may
direct the Trustee in its exercise of any trust or power.  The Trustee may
withhold from Holders notice of any continuing default (except a default in
payment of principal or interest) if a committee of its trust officers in good
faith determines that withholding notice is in the interests of such Holders.

     14.  Trustee Dealings with the Corporation.  First Trust of Illinois,
National Association, the Trustee under the Indenture, in its individual or any
other capacity may make loans to, accept deposits from and perform services for
the Guarantor or the Corporation or any of their affiliates, and may otherwise
deal with the Corporation or its affiliates as if it were not Trustee.


                                     - 4 -
<PAGE>
 
     15.  No Recourse Against Others.  A director, officer, employee or
stockholder (other than the Corporation), as such, of the Corporation or the
Guarantor shall not have any liability for any obligations of the Corporation or
the Guarantor under the Notes or the Indenture or for any claim based on, in
respect of, or by reason of such obligations or their creation.  Each Holder by
accepting a Note waives and releases all such liability.  This waiver and
release are part of the consideration for the issue of the Notes.

     16.  Authentication.  This Note shall not be valid until the Trustee
manually signs the certificate of authentication on the first page of this Note.

     17.  Abbreviations.  Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT 
(= tenants by the entireties), JT TEN (= joint tenants with right of 
survivorship and not as tenants in common), CUST (= Custodian) and U/G/M/A 
(= Uniform Gifts to Minors Act).

     18.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the 
Committee on Uniform Security Identification Procedures, the Corporation had 
caused CUSIP numbers to be printed on the Note and has directed the Trustee to 
use CUSIP numbers in notices of redemption as a convenience to Holders. No 
representation is made as to accuracy of any of such numbers either as printed 
on the Note or as contained in any notice of redemption and reliance may be 
placed only on the other identification numbers placed thereon.

     19.  Miscellaneous.  This Note shall for all purposes be governed by, and
construed in accordance with, the laws of the State of Maryland.

     All terms used in this Note and Guarantee which are defined in the
Indenture shall have the meanings assigned to them in the Indenture.


              GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

     For value received, Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), hereby fully and unconditionally guarantees to
the Holder of the Security upon which this Guarantee is endorsed the due and
punctual payment of the principal of, premium, if any, and interest, if any, on
said Security, when and as the same shall become due and payable, whether by
declaration thereof or otherwise, according to the terms thereof and of the
Indenture referred to therein.

     The Guarantor hereby agrees that its obligations hereunder shall be
absolute and unconditional, irrespective of, and shall be unaffected by, any
failure to enforce the provisions of said Security or said Indenture, any
extension, renewal, settlement, compromise, waiver, consent or indulgence
granted to the


                                     - 5 -
<PAGE>
 
Corporation with respect thereto, by operation of law or otherwise, or any other
circumstance which may otherwise constitute a legal or equitable discharge of a
surety or guarantor; provided that, notwithstanding the foregoing, no such
extension, renewal, settlement, compromise, waiver, consent, indulgence or
circumstance shall, without the consent of the Guarantor, increase the principal
amount of, premium, if any, or interest, if any, on said Security.  The
Guarantor hereby agrees that this Guarantee shall be enforceable without any
demand, suit or proceeding first against the Corporation.  The Guarantor hereby
waives diligence, presentment, demand of payment, filing of claims with a court
in the event of insolvency or bankruptcy of the Corporation, any right to
require a proceeding first against the Corporation, protest or notice with
respect to said Security or the indebtedness evidenced thereby or with respect
to any sinking fund payment required by the terms of said Security and all
demands whatsoever, and covenants that this Guarantee will not be discharged
except in accordance with certain provisions set forth in the Indenture or by
payment in full of the principal of, premium, if any, and interest, if any, on
said Security.

     The Guarantor will be subrogated to all rights of the Holder against the
Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of this Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of, premium, if any, and interest,
if any, on said Security shall have been paid in full.

     Notwithstanding the foregoing, the obligations of the Guarantor under this
Guarantee shall be limited to an amount equal to the largest amount that would
not render its obligations under this Guarantee subject to avoidance under
Section 548 of the United States Bankruptcy Code or any comparable provisions of
any applicable state law.

     This Guarantee shall not be valid or become obligatory for any purpose
until the certificate of authentication on said Security shall have been signed
manually by the Trustee under the Indenture referred to in said Security. Terms
used herein which are defined in such Indenture shall have the respective
meanings assigned thereto in the Indenture.

     This Guarantee shall be deemed to be a contract made under the laws of the
State of Maryland, and for all purposes shall be governed by and construed in
accordance with the laws of such State, except as may otherwise be required by
mandatory provisions of law.


                                     - 6 -
<PAGE>
 
     IN WITNESS WHEREOF, this Guarantee has been duly executed as of the date of
authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By:__________________________(SEAL)
                                 Vice President and Treasurer


                              By:__________________________
                                 Vice President and Assistant
                                    Secretary




                                     - 7 -
<PAGE>
 
     The Corporation will furnish to any Holder upon written request and without
charge a copy of the Indenture.  Requests may be made to:  Lockheed Martin
Corporation, 6801 Rockledge Drive, Bethesda, Maryland  20817, Attention:
Secretary.


                         _____________________________



I or we assign and transfer to

    Insert social security or other identifying number of assignee
   -----------------------------

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


________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
            (Print or type name, address and zip code of assignee)

this Note and irrevocably appoint _______________________________ agent to
transfer this Note on the books of the Corporation.  The agent may substitute
another to act for him.

Dated:  ________________________________________________________________________

Signed:  _______________________________________________________________________
            (Sign exactly as name appears on the other side of this Note)



                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         


                                    - 8 - 

<PAGE>
 
                                GLOBAL SECURITY
             NOT TO BE EXCHANGED FOR SECURITIES IN DEFINITIVE FORM
                                _______________

No. TW-___                                                          $___________
                                                               CUSIP 539830 AE 9

                          LOCKHEED MARTIN CORPORATION

                            7.65% Debenture Due 2016


LOCKHEED MARTIN CORPORATION, a Maryland corporation, for value received, hereby
promises to pay to ------ CEDE & CO. ------ or registered assigns, the principal
sum of _________________________________________________________________________
__________________________________________ DOLLARS on May 1, 2016.

     Interest Payment Dates:  November 1 and May 1

     Record Dates:  October 15 and April 15


     Additional provisions of this Note are set forth herein.

                                       LOCKHEED MARTIN CORPORATION


                                       By:___________________________(SEAL)
                                          Vice President and Treasurer


                                       By:___________________________
                                          Vice President and Secretary

Dated:  __________, 1996

Authenticated:

This is one of the Securities
of the series designated herein
and referred to in the
within-mentioned Indenture.

FIRST TRUST OF ILLINOIS,
  NATIONAL ASSOCIATION, as Trustee


By:__________________________
<PAGE>
 
     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF 
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE CORPORATION OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY A REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR DEBENTURES IN 
DEFINITIVE FORM, THIS DEBENTURE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE 
DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO
THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF ANY SUCCESSOR DEPOSITARY.

                          LOCKHEED MARTIN CORPORATION

                            7.65% Debenture Due 2016


      1.  Interest.  Lockheed Martin Corporation ("Corporation"), a Maryland
corporation, promises to pay interest on the principal amount of this Debenture
at the rate per annum shown above.  The Corporation will pay interest
semiannually on November 1 and May 1 of each year.  Interest on the Debentures
will accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from May 1, 1996.  Interest will be computed on the
basis of a 360-day year of twelve 30-day months.

      2.  Method of Payment.  The Corporation will pay interest on the
Debentures (except defaulted interest, which shall be paid as set forth below)
to the persons who are registered Holders of Debentures at the close of business
on the record date for the next interest payment date even though the Debentures
are cancelled after the record date and on or before the interest payment date.
Any such interest not so punctually paid or duly provided for will forthwith
cease to be payable to the Holder on such regular record date and may either be
paid to the Person in whose name this Debenture (or one or more predecessor
Debentures) is registered at the close of business on a special record date for
the payment of such defaulted interest to be fixed by the Corporation, notice
whereof shall be given to Holders of Debentures not less than 15 days prior to
such special record date, or may be paid at any time in any other lawful manner,
all as more fully provided in the Indenture.  Holders must surrender the
Debentures to a Paying Agent to collect principal payments.  The Corporation
will pay principal and interest in money of the United States that at the time
of payment is legal tender for payment of public and private debts.  However,
the Corporation may pay principal and interest by its check payable in such
money.  It may mail an interest check to a Holder's registered address.  To the
extent lawful, the Corporation shall pay interest on overdue principal at the
rate borne by the Debentures and shall pay interest on overdue installments of
interest at the same rate.

      3.  Paying Agent and Registrar.  Initially, First Trust of Illinois,
National Association ("Trustee"), will act as Paying Agent and Registrar.  The
Corporation may change any Paying Agent, Registrar or co-registrar without
notice.  The Corporation or any of its Subsidiaries (as defined in the
Indenture) may act as Paying Agent, Registrar or co-registrar.

      4.  Indenture.  The Corporation issued the Debentures under an Indenture
dated as of May 15, 1996 ("Indenture"), between the Corporation, the Guarantor
and the Trustee.  The terms of the Debentures include those stated in the
Indenture and those made part of the Indenture by reference to the Trust
Indenture Act of 1939 (15 U.S. Code (S)(S) 77aaa-77bbbb) ("Act").  The
Debentures are subject to all such terms, and Holders are referred to the


                                     - 2 -
<PAGE>
 
Indenture, all applicable supplemental indentures and the Act for a statement of
those terms.  As provided in the Indenture, the Securities may be issued in one
or more series, which different series may be issued in various aggregate
principal amounts, may mature at different times, may bear interest, if any, at
different rates, may be subject to different redemption provisions, if any, may
be subject to different sinking, purchase or analogous funds, if any, may be
subject to different covenants and Events of Default and may otherwise vary as
provided or permitted in the Indenture.  This Debenture is one of a series of
the Debentures designated on the face hereof, limited in aggregate principal
amount to $600,000,000 (except as provided or permitted in the Indenture).

      5.  Redemption.  The Debentures are not redeemable by the Corporation.

      6. Denominations; Transfer; Exchange. The Debentures are registered in
global form unless specifically required by the provisions of the Indenture or
unless the Corporation shall subsequently determine to issue Debentures in
definitive form. A Holder may transfer or exchange Debentures only in accordance
with the Indenture. The Registrar may require a Holder, among other things, to
furnish appropriate endorsements and transfer documents and to pay any taxes and
fees required by law or permitted by the Indenture. Also, it need not transfer
or exchange any Debentures for a period of 15 days before a selection of
Debentures to be redeemed or before an interest payment date.

      This Debenture is issued in the form of a Global Security and is
exchangeable in whole, but not in part, for Debentures registered in the names
of Persons other than the Depositary or its nominee or in the name of a
successor to the Depositary or a nominee of such successor depositary only if
(i) the Depositary notifies the Corporation that it is unwilling or unable to
continue as Depositary for this Debenture or if at any time such Depositary
shall no longer be registered or in good standing under the Securities Exchange
Act of 1934, as amended, or other applicable statute or regulation, and, in
either case, a successor depositary is not appointed by the Corporation within
90 days of the receipt by the Corporation of such notice or of the Corporation
becoming aware of such condition,or (ii) the Corporation in its discretion at
any time determines not to have all of the Debentures represented by one or
more Global Security or Securities. If this Debenture is exchangeable pursuant
to the preceding sentence, it shall be exchangeable for Debentures of like tenor
and terms in definitive form in aggregate principal amount equal to the
principal amount of the Global Security. Subject to the foregoing, this
Debenture is not exchangeable, except for a Debenture or Debentures of the same
aggregate denominations to be registered in the name of such Depositary or its
nominee or in the name of a successor to the Depositary or a nominee of such
successor depositary.

      7.  Persons Deemed Owners.  The registered Holder of this Debenture may be
treated as the owner of it for all purposes, and neither the Corporation, the
Guarantor, the Trustee, nor any Registrar, Paying Agent or co-registrar shall be
affected by notice to the contrary.

      8.  Unclaimed Money.  If money for the payment of principal or interest
remains unclaimed for two years, the Trustee or Paying Agent will pay, unless
otherwise prohibited by mandatory provisions of applicable abandoned property
law, the money back to the Corporation at its request.  After that, Holders
entitled to unclaimed money must look only to the Corporation and not to the
Trustee for payment unless an abandoned property law designates another person.

      9.  Defeasance.  The Indenture contains provisions for defeasance at any
time of the entire principal of the Securities of any series upon compliance by
the Corporation with certain conditions set forth therein.

     10.  Amendment; Supplement; Waiver.  Subject to certain exceptions as
therein provided, the Indenture or the Debentures may be amended or supplemented
with the written consent of the Holders of not less than a majority in principal
amount of the Debentures, and, subject to certain exceptions and limitations as
provided in the Indenture, any past default or compliance with any provision


                                     - 3 -
<PAGE>
 
may be waived with the consent of the Holders of a majority in principal amount
of the Debentures.  Without the consent of any Holder, the Indenture or the
Debentures may be amended or supplemented, for among other reasons, to cure any
ambiguity, omission, defect or inconsistency, to provide for uncertificated
Debentures in addition to or in place of certificated Debentures or to make any
change that does not materially adversely affect the rights of any Holder.
Without the consent of any Holder, the Trustee may waive compliance with any
provision of the Indenture or the Debentures if the waiver does not materially
adversely affect the rights of any Holder.

     11.  Restrictive Covenants.  The Indenture does not limit unsecured debt of
the Guarantor or the Corporation or any of their Subsidiaries.  It does limit
certain Liens and Sale-Leaseback Transactions.  The limitations are subject to a
number of important qualifications and exceptions.  Once a year the Guarantor
and the Corporation must report to the Trustee on compliance with the
limitations.

     12.  Successors.  When a successor entity assumes all the obligations of
the Corporation or the Guarantor or either of their successors under the
Debentures and the Indenture, the predecessor corporation will be released from
those obligations.

     13.  Defaults and Remedies.  An Event of Default is:  default for 30 days
in payment of any interest on the Debentures; default in payment of any
principal on the Debentures; failure by the Corporation or the Guarantor for 90
days after notice to it to comply with any of its other agreements in the
Indenture or the Debentures or the Guarantees; and certain events of bankruptcy
or insolvency.  If an Event of Default with respect to Debentures of this series
shall occur and be continuing, the principal of the Debentures of this series
and accrued interest thereon may be declared due and payable in the manner and
with the effect provided in the Indenture.  Holders of Debentures may not
enforce the Indenture or the Debentures except as provided in the Indenture.
The Trustee may refuse to enforce the Indenture or the Debentures unless it
receives indemnity satisfactory to it.  Subject to certain limitations, Holders
of a majority in principal amount of the Debentures may direct the Trustee in
its exercise of any trust or power.  The Trustee may withhold from Holders
notice of any continuing default (except a default in payment of principal or
interest) if a committee of its trust officers in good faith determines that
withholding notice is in the interests of such Holders.

     14.  Trustee Dealings with the Corporation.  First Trust of Illinois,
National Association, the Trustee under the Indenture, in its individual or any
other capacity may make loans to, accept deposits from and perform services for
the Guarantor or the Corporation or any of their affiliates, and may otherwise
deal with the Corporation or its affiliates as if it were not Trustee.


                                     - 4 -
<PAGE>
 
     15.  No Recourse Against Others.  A director, officer, employee or
stockholder (other than the Corporation), as such, of the Corporation or the
Guarantor shall not have any liability for any obligations of the Corporation or
the Guarantor under the Debentures or the Indenture or for any claim based on,
in respect of, or by reason of such obligations or their creation.  Each Holder
by accepting a Debenture waives and releases all such liability.  This waiver
and release are part of the consideration for the issue of the Debentures.

     16.  Authentication.  This Debenture shall not be valid until the Trustee
manually signs the certificate of authentication on the first page of this
Debenture.

     17.  Abbreviations.  Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian) and U/G/M/A (= Uniform Gifts
to Minors Act).

     18.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the 
Committee on Uniform Security Identification Procedures, the Corporation had 
caused CUSIP numbers to be printed on the Note and has directed the Trustee to 
use CUSIP numbers in notices of redemption as a convenience to Holders. No 
representation is made as to accuracy of any of such numbers either as printed 
on the Note or as contained in any notice of redemption and reliance may be 
placed only on the other identification numbers placed thereon.

     19.  Miscellaneous.  This Debenture shall for all purposes be governed by,
and construed in accordance with, the laws of the State of Maryland.

     All terms used in this Debenture and Guarantee which are defined in the
Indenture shall have the meanings assigned to them in the Indenture.


              GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

     For value received, Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), hereby fully and unconditionally guarantees to
the Holder of the Security upon which this Guarantee is endorsed the due and
punctual payment of the principal of, premium, if any, and interest, if any, on
said Security, when and as the same shall become due and payable, whether by
declaration thereof or otherwise, according to the terms thereof and of the
Indenture referred to therein.

     The Guarantor hereby agrees that its obligations hereunder shall be
absolute and unconditional, irrespective of, and shall be unaffected by, any
failure to enforce the provisions of said Security or said Indenture, any
extension, renewal, settlement, compromise, waiver, consent or indulgence
granted to the Corporation with respect thereto, by operation of law or
otherwise,


                                     - 5 -
<PAGE>
 
or any other circumstance which may otherwise constitute a legal or equitable
discharge of a surety or guarantor; provided that, notwithstanding the
foregoing, no such extension, renewal, settlement, compromise, waiver, consent,
indulgence or circumstance shall, without the consent of the Guarantor, increase
the principal amount of, premium, if any, or interest, if any, on said Security.
The Guarantor hereby agrees that this Guarantee shall be enforceable without any
demand, suit or proceeding first against the Corporation.  The Guarantor hereby
waives diligence, presentment, demand of payment, filing of claims with a court
in the event of insolvency or bankruptcy of the Corporation, any right to
require a proceeding first against the Corporation, protest or notice with
respect to said Security or the indebtedness evidenced thereby or with respect
to any sinking fund payment required by the terms of said Security and all
demands whatsoever, and covenants that this Guarantee will not be discharged
except in accordance with certain provisions set forth in the Indenture or by
payment in full of the principal of, premium, if any, and interest, if any, on
said Security.

     The Guarantor will be subrogated to all rights of the Holder against the
Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of this Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of, premium, if any, and interest,
if any, on said Security shall have been paid in full.

     Notwithstanding the foregoing, the obligations of the Guarantor under this
Guarantee shall be limited to an amount equal to the largest amount that would
not render its obligations under this Guarantee subject to avoidance under
Section 548 of the United States Bankruptcy Code or any comparable provisions of
any applicable state law.

     This Guarantee shall not be valid or become obligatory for any purpose
until the certificate of authentication on said Security shall have been signed
manually by the Trustee under the Indenture referred to in said Security. Terms
used herein which are defined in such Indenture shall have the respective
meanings assigned thereto in the Indenture.

     This Guarantee shall be deemed to be a contract made under the laws of the
State of Maryland, and for all purposes shall be governed by and construed in
accordance with the laws of such State, except as may otherwise be required by
mandatory provisions of law.


                                     - 6 -
<PAGE>
 
     IN WITNESS WHEREOF, this Guarantee has been duly executed as of the date of
authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By:__________________________(SEAL)
                                 Vice President and Treasurer


                              By:__________________________
                                 Vice President and Assistant
                                    Secretary



                                     - 7 -
<PAGE>
 
     The Corporation will furnish to any Holder upon written request and without
charge a copy of the Indenture.  Requests may be made to:  Lockheed Martin
Corporation, 6801 Rockledge Drive, Bethesda, Maryland 20817, Attention:
Secretary.


                         _____________________________



I or we assign and transfer to

    Insert social security or other identifying number of assignee
   -----------------------------

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


________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
            (Print or type name, address and zip code of assignee)

this Debenture and irrevocably appoint _________________________ agent to
transfer this Debenture on the books of the Corporation.  The agent may
substitute another to act for him.

Dated:  ________________________________________________________________________

Signed:  _______________________________________________________________________
           (Sign exactly as name appears on the other side of this Debenture)


                                                                                
                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         

                                     - 8 -

<PAGE>
 
                                GLOBAL SECURITY

             NOT TO BE EXCHANGED FOR SECURITIES IN DEFINITIVE FORM
                                _______________

No. TH-___                                                          $___________
                                                               CUSIP 539830 AF 6

                          LOCKHEED MARTIN CORPORATION

                            7.75% Debenture Due 2026


LOCKHEED MARTIN CORPORATION, a Maryland corporation, for value received, hereby
promises to pay to ------ CEDE & CO. ------ or registered assigns, the principal
sum of __________________________________________________________________
DOLLARS on May 1, 2026.

     Interest Payment Dates:  November 1 and May 1

     Record Dates:  October 15 and April 15


     Additional provisions of this Note are set forth herein.

                                      LOCKHEED MARTIN CORPORATION


                                      By:___________________________(SEAL)
                                         Vice President and Treasurer


                                      By:___________________________
                                         Vice President and Secretary

Dated:  __________, 1996

Authenticated:

This is one of the Securities
of the series designated herein
and referred to in the
within-mentioned Indenture.

FIRST TRUST OF ILLINOIS,
  NATIONAL ASSOCIATION, as Trustee


By:__________________________
<PAGE>

      UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE CORPORATION OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY A REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

      UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR DEBENTURES IN 
DEFINITIVE FORM, THIS DEBENTURE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE 
DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO
THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF ANY SUCCESSOR DEPOSITARY.

                          LOCKHEED MARTIN CORPORATION

                            7.75% Debenture Due 2026


      1.  Interest.  Lockheed Martin Corporation ("Corporation"), a Maryland
corporation, promises to pay interest on the principal amount of this Debenture
at the rate per annum shown above.  The Corporation will pay interest
semiannually on November 1 and May 1 of each year.  Interest on the Debentures
will accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from May 1, 1996.  Interest will be computed on the
basis of a 360-day year of twelve 30-day months.

      2.  Method of Payment.  The Corporation will pay interest on the
Debentures (except defaulted interest, which shall be paid as set forth below)
to the persons who are registered Holders of Debentures at the close of business
on the record date for the next interest payment date even though the Debentures
are cancelled after the record date and on or before the interest payment date.
Any such interest not so punctually paid or duly provided for will forthwith
cease to be payable to the Holder on such regular record date and may either be
paid to the Person in whose name this Debenture (or one or more predecessor
Debentures) is registered at the close of business on a special record date for
the payment of such defaulted interest to be fixed by the Corporation, notice
whereof shall be given to Holders of Debentures not less than 15 days prior to
such special record date, or may be paid at any time in any other lawful manner,
all as more fully provided in the Indenture.  Holders must surrender the
Debentures to a Paying Agent to collect principal payments.  The Corporation
will pay principal and interest in money of the United States that at the time
of payment is legal tender for payment of public and private debts.  However,
the Corporation may pay principal and interest by its check payable in such
money.  It may mail an interest check to a Holder's registered address.  To the
extent lawful, the Corporation shall pay interest on overdue principal at the
rate borne by the Debentures and shall pay interest on overdue installments of
interest at the same rate.

      3.  Paying Agent and Registrar.  Initially, First Trust of Illinois,
National Association ("Trustee"), will act as Paying Agent and Registrar.  The
Corporation may change any Paying Agent, Registrar or co-registrar without
notice.  The Corporation or any of its Subsidiaries (as defined in the
Indenture) may act as Paying Agent, Registrar or co-registrar.

      4.  Indenture.  The Corporation issued the Debentures under an Indenture
dated as of May 15, 1996 ("Indenture"), between the Corporation, the Guarantor
and the Trustee.  The terms of the Debentures include those stated in the
Indenture and those made part of the Indenture by reference to the Trust
Indenture Act of 1939 (15 U.S. Code (S)(S) 77aaa-77bbbb) ("Act").  The
Debentures are subject to all such terms, and Holders are referred to the

                                    - 2 - 
<PAGE>
 
Indenture, all applicable supplemental indentures and the Act for a statement of
those terms.  As provided in the Indenture, the Securities may be issued in one
or more series, which different series may be issued in various aggregate
principal amounts, may mature at different times, may bear interest, if any, at
different rates, may be subject to different redemption provisions, if any, may
be subject to different sinking, purchase or analogous funds, if any, may be
subject to different covenants and Events of Default and may otherwise vary as
provided or permitted in the Indenture.  This Debenture is one of a series of
the Debentures designated on the face hereof, limited in aggregate principal
amount to $600,000,000 (except as provided or permitted in the Indenture).

      5.  Redemption.  The Debentures are not redeemable by the Corporation.

      6. Denominations; Transfer; Exchange. The Debentures are registered in
global form unless specifically required by the provisions of the Indenture or
unless the Corporation shall subsequently determine to issue Debentures in
definitive form. A Holder may transfer or exchange Debentures in accordance with
the Indenture. The Registrar may require a Holder, among other things, to
furnish appropriate endorsements and transfer documents and to pay any taxes and
fees required by law or permitted by the Indenture. Also, it need not transfer
or exchange any Debentures for a period of 15 days before a selection of
Debentures to be redeemed or before an interest payment date.

      This Debenture is issued in the form of a Global Security and is
exchangeable in whole, but not in part, for Debentures registered in the names
of Persons other than the Depositary or its nominee or in the name of a
successor to the Depositary or a nominee of such successor depositary only if
(i) the Depositary notifies the Corporation that it is unwilling or unable to
continue as Depositary for this Debenture or if at any time such Depositary
shall no longer be registered or in good standing under the Securities Exchange
Act of 1934, as amended, or other applicable statute or regulation, and, in
either case, a successor depositary is not appointed by the Corporation within
90 days of the receipt by the Corporation of such notice or of the Corporation
becoming aware of such condition,or (ii) the Corporation in its discretion at
any time determines not to have all of the Debentures represented by one or
more Global Security or Securities. If this Debenture is exchangeable pursuant
to the preceding sentence, it shall be exchangeable for Debentures of like tenor
and terms in definitive form in aggregate principal amount equal to the
principal amount of the Global Security. Subject to the foregoing, this
Debenture is not exchangeable, except for a Debenture or Debentures of the same
aggregate denominations to be registered in the name of such Depositary or its
nominee or in the name of a successor to the Depositary or a nominee of such
successor depositary.

      7.  Persons Deemed Owners.  The registered Holder of this Debenture may be
treated as the owner of it for all purposes, and neither the Corporation, the
Guarantor, the Trustee, nor any Registrar, Paying Agent or co-registrar shall be
affected by notice to the contrary.

      8.  Unclaimed Money.  If money for the payment of principal or interest
remains unclaimed for two years, the Trustee or Paying Agent will pay, unless
otherwise prohibited by mandatory provisions of applicable abandoned property
law, the money back to the Corporation at its request.  After that, Holders
entitled to unclaimed money must look only to the Corporation and not to the
Trustee for payment unless an abandoned property law designates another person.

      9.  Defeasance.  The Indenture contains provisions for defeasance at any
time of the entire principal of the Securities of any series upon compliance by
the Corporation with certain conditions set forth therein.

     10.  Amendment; Supplement; Waiver.  Subject to certain exceptions as
therein provided, the Indenture or the Debentures may be amended or supplemented
with the written consent of the Holders of not less than a majority in principal
amount of the Debentures, and, subject to certain exceptions and limitations as
provided in the Indenture, any past default or compliance with any provision


                                     - 3 -
<PAGE>
 
may be waived with the consent of the Holders of a majority in principal amount
of the Debentures.  Without the consent of any Holder, the Indenture or the
Debentures may be amended or supplemented, for among other reasons, to cure any
ambiguity, omission, defect or inconsistency, to provide for uncertificated
Debentures in addition to or in place of certificated Debentures or to make any
change that does not materially adversely affect the rights of any Holder.
Without the consent of any Holder, the Trustee may waive compliance with any
provision of the Indenture or the Debentures if the waiver does not materially
adversely affect the rights of any Holder.

     11.  Restrictive Covenants.  The Indenture does not limit unsecured debt of
the Guarantor or the Corporation or any of their Subsidiaries.  It does limit
certain Liens and Sale-Leaseback Transactions.  The limitations are subject to a
number of important qualifications and exceptions.  Once a year the Guarantor
and the Corporation must report to the Trustee on compliance with the
limitations.

     12.  Successors.  When a successor entity assumes all the obligations of
the Corporation or the Guarantor or either of their successors under the
Debentures and the Indenture, the predecessor corporation will be released from
those obligations.

     13.  Defaults and Remedies.  An Event of Default is:  default for 30 days
in payment of any interest on the Debentures; default in payment of any
principal on the Debentures; failure by the Corporation or the Guarantor for 90
days after notice to it to comply with any of its other agreements in the
Indenture or the Debentures or the Guarantees; and certain events of bankruptcy
or insolvency.  If an Event of Default with respect to Debentures of this series
shall occur and be continuing, the principal of the Debentures of this series
and accrued interest thereon may be declared due and payable in the manner and
with the effect provided in the Indenture.  Holders of Debentures may not
enforce the Indenture or the Debentures except as provided in the Indenture.
The Trustee may refuse to enforce the Indenture or the Debentures unless it
receives indemnity satisfactory to it.  Subject to certain limitations, Holders
of a majority in principal amount of the Debentures may direct the Trustee in
its exercise of any trust or power.  The Trustee may withhold from Holders
notice of any continuing default (except a default in payment of principal or
interest) if a committee of its trust officers in good faith determines that
withholding notice is in the interests of such Holders.

     14.  Trustee Dealings with the Corporation.  First Trust of Illinois,
National Association, the Trustee under the Indenture, in its individual or any
other capacity may make loans to, accept deposits from and perform services for
the Guarantor or the Corporation or any of their affiliates, and may otherwise
deal with the Corporation or its affiliates as if it were not Trustee.


                                     - 4 -
<PAGE>
 
     15.  No Recourse Against Others.  A director, officer, employee or
stockholder (other than the Corporation), as such, of the Corporation or the
Guarantor shall not have any liability for any obligations of the Corporation or
the Guarantor under the Debentures or the Indenture or for any claim based on,
in respect of, or by reason of such obligations or their creation.  Each Holder
by accepting a Debenture waives and releases all such liability.  This waiver
and release are part of the consideration for the issue of the Debentures.

     16.  Authentication.  This Debenture shall not be valid until the Trustee
manually signs the certificate of authentication on the first page of this
Debenture.

     17.  Abbreviations.  Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian) and U/G/M/A (= Uniform Gifts
to Minors Act).

     18.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the 
Committee on Uniform Security Identification Procedures, the Corporation had 
caused CUSIP numbers to be printed on the Note and has directed the Trustee to 
use CUSIP numbers in notices of redemption as a convenience to Holders. No 
representation is made as to accuracy of any of such numbers either as printed 
on the Note or as contained in any notice of redemption and reliance may be 
placed only on the other identification numbers placed thereon.

     19.  Miscellaneous.  This Debenture shall for all purposes be governed by,
and construed in accordance with, the laws of the State of Maryland.

     All terms used in this Debenture and Guarantee which are defined in the
Indenture shall have the meanings assigned to them in the Indenture.


              GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

     For value received, Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), hereby fully and unconditionally guarantees to
the Holder of the Security upon which this Guarantee is endorsed the due and
punctual payment of the principal of, premium, if any, and interest, if any, on
said Security, when and as the same shall become due and payable, whether by
declaration thereof or otherwise, according to the terms thereof and of the
Indenture referred to therein.

     The Guarantor hereby agrees that its obligations hereunder shall be
absolute and unconditional, irrespective of, and shall be unaffected by, any
failure to enforce the provisions of said Security or said Indenture, any
extension, renewal, settlement, compromise, waiver, consent or indulgence
granted to the Corporation with respect thereto, by operation of law or
otherwise,


                                     - 5 -
<PAGE>
 
or any other circumstance which may otherwise constitute a legal or equitable
discharge of a surety or guarantor; provided that, notwithstanding the
foregoing, no such extension, renewal, settlement, compromise, waiver, consent,
indulgence or circumstance shall, without the consent of the Guarantor, increase
the principal amount of, premium, if any, or interest, if any, on said Security.
The Guarantor hereby agrees that this Guarantee shall be enforceable without any
demand, suit or proceeding first against the Corporation.  The Guarantor hereby
waives diligence, presentment, demand of payment, filing of claims with a court
in the event of insolvency or bankruptcy of the Corporation, any right to
require a proceeding first against the Corporation, protest or notice with
respect to said Security or the indebtedness evidenced thereby or with respect
to any sinking fund payment required by the terms of said Security and all
demands whatsoever, and covenants that this Guarantee will not be discharged
except in accordance with certain provisions set forth in the Indenture or by
payment in full of the principal of, premium, if any, and interest, if any, on
said Security.

     The Guarantor will be subrogated to all rights of the Holder against the
Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of this Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of, premium, if any, and interest,
if any, on said Security shall have been paid in full.

     Notwithstanding the foregoing, the obligations of the Guarantor under this
Guarantee shall be limited to an amount equal to the largest amount that would
not render its obligations under this Guarantee subject to avoidance under
Section 548 of the United States Bankruptcy Code or any comparable provisions of
any applicable state law.

     This Guarantee shall not be valid or become obligatory for any purpose
until the certificate of authentication on said Security shall have been signed
manually by the Trustee under the Indenture referred to in said Security. Terms
used herein which are defined in such Indenture shall have the respective
meanings assigned thereto in the Indenture.

     This Guarantee shall be deemed to be a contract made under the laws of the
State of Maryland, and for all purposes shall be governed by and construed in
accordance with the laws of such State, except as may otherwise be required by
mandatory provisions of law.


                                     - 6 -
<PAGE>
 
     IN WITNESS WHEREOF, this Guarantee has been duly executed as of the date of
authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By:__________________________(SEAL)
                                 Vice President and Treasurer


                              By:__________________________
                                 Vice President and Assistant
                                    Secretary

                                     - 7 -
<PAGE>
 
     The Corporation will furnish to any Holder upon written request and without
charge a copy of the Indenture.  Requests may be made to:  Lockheed Martin
Corporation, 6801 Rockledge Drive, Bethesda, Maryland 20817, Attention:
Secretary.


                         _____________________________



I or we assign and transfer to

    Insert social security or other identifying number of assignee
   -----------------------------

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


________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
           (Print or type name, address and zip code of assignee)

this Debenture and irrevocably appoint _________________________ agent to
transfer this Debenture on the books of the Corporation.  The agent may
substitute another to act for him.

Dated:  ________________________________________________________________________

Signed: ________________________________________________________________________
           (Sign exactly as name appears on the other side of this Debenture)



                                                                                
                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         


                                     - 8 -

<PAGE>
 
                               GLOBAL SECURITY
             NOT TO BE EXCHANGED FOR SECURITIES IN DEFINITIVE FORM
                                _______________

No. FY-___                                                          $___________
                                                               CUSIP 539830 AD 1

                          LOCKHEED MARTIN CORPORATION

                            7.20% Debenture Due 2036


LOCKHEED MARTIN CORPORATION, a Maryland corporation, for value received, hereby
promises to pay to ------ CEDE & CO. ------ or registered assigns, the principal
sum of _________________________________________________________________________
__________________________________________ DOLLARS on May 1, 2036.

     Interest Payment Dates:  November 1 and May 1

     Record Dates:  October 15 and April 15


     Additional provisions of this Note are set forth herein.

                                          LOCKHEED MARTIN CORPORATION


                                          By:___________________________(SEAL)
                                             Vice President and Treasurer


                                          By:___________________________
                                             Vice President and Secretary

Dated:  __________, 1996

Authenticated:

This is one of the Securities
of the series designated herein
and referred to in the
within-mentioned Indenture.

FIRST TRUST OF ILLINOIS,
  NATIONAL ASSOCIATION, as Trustee


By:__________________________
<PAGE>

      UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE CORPORATION OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS IS REQUESTED BY A REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

      UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR DEBENTURES IN 
DEFINITIVE FORM, THIS DEBENTURE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE 
DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO
THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF ANY SUCCESSOR DEPOSITARY.
 
                          LOCKHEED MARTIN CORPORATION

                            7.20% Debenture Due 2036


      1.  Interest.  Lockheed Martin Corporation ("Corporation"), a Maryland
corporation, promises to pay interest on the principal amount of this Debenture
at the rate per annum shown above.  The Corporation will pay interest
semiannually on November 1 and May 1 of each year.  Interest on the Debentures
will accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from May 1, 1996.  Interest will be computed on the
basis of a 360-day year of twelve 30-day months.

      2.  Method of Payment.  The Corporation will pay interest on the
Debentures (except defaulted interest, which shall be paid as set forth below)
to the persons who are registered Holders of Debentures at the close of business
on the record date for the next interest payment date even though the Debentures
are cancelled after the record date and on or before the interest payment date.
Any such interest not so punctually paid or duly provided for will forthwith
cease to be payable to the Holder on such regular record date and may either be
paid to the Person in whose name this Debenture (or one or more predecessor
Debentures) is registered at the close of business on a special record date for
the payment of such defaulted interest to be fixed by the Corporation, notice
whereof shall be given to Holders of Debentures not less than 15 days prior to
such special record date, or may be paid at any time in any other lawful manner,
all as more fully provided in the Indenture.  Holders must surrender the
Debentures to a Paying Agent to collect principal payments.  The Corporation
will pay principal and interest in money of the United States that at the time
of payment is legal tender for payment of public and private debts.  However,
the Corporation may pay principal and interest by its check payable in such
money.  It may mail an interest check to a Holder's registered address.  To the
extent lawful, the Corporation shall pay interest on overdue principal at the
rate borne by the Debentures and shall pay interest on overdue installments of
interest at the same rate.

      3.  Paying Agent and Registrar.  Initially, First Trust of Illinois,
National Association ("Trustee"), will act as Paying Agent and Registrar.  The
Corporation may change any Paying Agent, Registrar or co-registrar without
notice.  The Corporation or any of its Subsidiaries (as defined in the
Indenture) may act as Paying Agent, Registrar or co-registrar.

      4.  Indenture.  The Corporation issued the Debentures under an Indenture
dated as of May 15, 1996 ("Indenture"), between the Corporation, the Guarantor
and the Trustee.  The terms of the Debentures include those stated in the
Indenture and those made part of the Indenture by reference to the Trust
Indenture Act of 1939 (15 U.S. Code (S)(S) 77aaa-77bbbb) ("Act").  The
Debentures are subject to all such terms, and Holders are referred to the


                                     - 2 -
<PAGE>
 
Indenture, all applicable supplemental indentures and the Act for a statement of
those terms.  As provided in the Indenture, the Securities may be issued in one
or more series, which different series may be issued in various aggregate
principal amounts, may mature at different times, may bear interest, if any, at
different rates, may be subject to different redemption provisions, if any, may
be subject to different sinking, purchase or analogous funds, if any, may be
subject to different covenants and Events of Default and may otherwise vary as
provided or permitted in the Indenture.  This Debenture is one of a series of
the Debentures designated on the face hereof, limited in aggregate principal
amount to $300,000,000 (except as provided or permitted in the Indenture).

      5.  Redemption.  The Debentures are not redeemable by the Corporation.

      6. Optional Repayment. The registered holder of this Debenture may elect
to have the Debenture, or any portion of the principal amount hereof that is an
integral multiple of $1,000, repaid on May 1, 2008 at 100% of the principal
amount thereof, together with accrued interest to May 1, 2008. The Holder shall
exercise this repayment option by delivering this Debenture with the "Option to
Elect Repayment on May 1, 2008" on the last page hereof duly completed. In order
for such an election to be effective, the Corporation must receive such election
at its office or agency in New York, New York, during the period beginning on
March 1, 2008 and ending at 5:00 p.m. (New York City time) on April 1, 2008 (or,
if April 1, 2008 is not a Business Day, the next succeeding Business Day). Any
such election received by the Corporation during the period beginning on March
1, 2008 and ending at 5:00 p.m. (New York City time) on April 1, 2008 (or, if
April 1, 2008 is not a Business Day, the next succeeding Business Day) shall be
irrevocable. The repayment option may be exercised by the Holder of the
Debenture for less than the entire principal amount of the Debenture, so long as
the principal amount that is to be repaid is equal to $1,000 or an integral
multiple of $1,000. All questions as to the validity, form, eligibility
(including time of receipt) and acceptance of any Debenture for repayment will
be determined by the Corporation, whose determination will be final and binding.

      As long as this Debenture is represented by a Global Security, the 
Depositary or the Depositary's nominee will be the registered holder of the 
Debenture and therefore will be the only entity that can exercise a right to 
repayment.

      7. Denominations; Transfer; Exchange. The Debentures are registered in
global form unless specifically required by the provisions of the Indenture or
unless the Corporation shall subsequently determine to issue Debentures in
definitive form. A Holder may transfer or exchange Debentures in accordance with
the Indenture. The Registrar may require a Holder, among other things, to
furnish appropriate endorsements and transfer documents and to pay any taxes and
fees required by law or permitted by the Indenture. Also, it need not transfer
or exchange any Debentures for a period of 15 days before a selection of
Debentures to be redeemed or before an interest payment date.

      This Debenture is issued in the form of a Global Security and is
exchangeable in whole, but not in part, for Debentures registered in the names
of Persons other than the Depositary or its nominee or in the name of a
successor to the Depositary or a nominee of such successor depositary only if
(i) the Depositary notifies the Corporation that it is unwilling or unable to
continue as Depositary for this Debenture or if at any time such Depositary
shall no longer be registered or in good standing under the Securities Exchange
Act of 1934, as amended, or other applicable statute or regulation, and, in
either case, a successor depositary is not appointed by the Corporation within
90 days of the receipt by the Corporation of such notice or of the Corporation
becoming aware of such condition,or (ii) the Corporation in its discretion at
any time determines not to have all of the Debentures represented by one or
more Global Security or Securities. If this Debenture is exchangeable pursuant
to the preceding sentence, it shall be exchangeable for Debentures of like tenor
and terms in definitive form in aggregate principal amount equal to the
principal amount of the Global Security. Subject to the foregoing, this
Debenture is not exchangeable, except for a Debenture or Debentures of the same
aggregate denominations to be registered in the name of such Depositary or its
nominee or in the name of a successor to the Depositary or a nominee of such
successor depositary.

      8.  Persons Deemed Owners.  The registered Holder of this Debenture may be
treated as the owner of it for all purposes, and


                                     - 3 -
<PAGE>
 
neither the Corporation, the Guarantor, the Trustee, nor any Registrar, Paying
Agent or co-registrar shall be affected by notice to the contrary.

      9.  Unclaimed Money.  If money for the payment of principal or interest
remains unclaimed for two years, the Trustee or Paying Agent will pay, unless
otherwise prohibited by mandatory provisions of applicable abandoned property
law, the money back to the Corporation at its request.  After that, Holders
entitled to unclaimed money must look only to the Corporation and not to the
Trustee for payment unless an abandoned property law designates another person.

     10.  Defeasance.  The Indenture contains provisions for defeasance of the
entire principal of the Securities of any series upon compliance by the
Corporation with certain conditions set forth therein.  The Debentures are not
subject to defeasance by the Corporation until after May 1, 2008.

     11.  Amendment; Supplement; Waiver.  Subject to certain exceptions as
therein provided, the Indenture or the Debentures may be amended or supplemented
with the written consent of the Holders of not less than a majority in principal
amount of the Debentures, and, subject to certain exceptions and limitations as
provided in the Indenture, any past default or compliance with any provision may
be waived with the consent of the Holders of a majority in principal amount of
the Debentures.  Without the consent of any Holder, the Indenture or the
Debentures may be amended or supplemented, for among other reasons, to cure any
ambiguity, omission, defect or inconsistency, to provide for uncertificated
Debentures in addition to or in place of certificated Debentures or to make any
change that does not materially adversely affect the rights of any Holder.
Without the consent of any Holder, the Trustee may waive compliance with any
provision of the Indenture or the Debentures if the waiver does not materially
adversely affect the rights of any Holder.

     12.  Restrictive Covenants.  The Indenture does not limit unsecured debt of
the Guarantor or the Corporation or any of their Subsidiaries.  It does limit
certain Liens and Sale-Leaseback Transactions.  The limitations are subject to a
number of important qualifications and exceptions.  Once a year the Guarantor
and the Corporation must report to the Trustee on compliance with the
limitations.

     13.  Successors.  When a successor entity assumes all the obligations of
the Corporation or the Guarantor or either of their successors under the
Debentures and the Indenture, the predecessor corporation will be released from
those obligations.

     14.  Defaults and Remedies.  An Event of Default is:  default for 30 days
in payment of any interest on the Debentures; default in payment of any
principal on the Debentures;  failure by the Corporation or the Guarantor for 90
days after notice to it to

                                     - 4 -
<PAGE>
 
comply with any of its other agreements in the Indenture or the Debentures or
the Guarantees; and certain events of bankruptcy or insolvency.  If an Event of
Default with respect to Debentures of this series shall occur and be continuing,
the principal of the Debentures of this series and accrued interest thereon may
be declared due and payable in the manner and with the effect provided in the
Indenture.  Holders of Debentures may not enforce the Indenture or the
Debentures except as provided in the Indenture.  The Trustee may refuse to
enforce the Indenture or the Debentures unless it receives indemnity
satisfactory to it.  Subject to certain limitations, Holders of a majority in
principal amount of the Debentures may direct the Trustee in its exercise of any
trust or power.  The Trustee may withhold from Holders notice of any continuing
default (except a default in payment of principal or interest) if a committee of
its trust officers in good faith determines that withholding notice is in the
interests of such Holders.

     15.  Trustee Dealings with the Corporation.  First Trust of Illinois,
National Association, the Trustee under the Indenture, in its individual or any
other capacity may make loans to, accept deposits from and perform services for
the Guarantor or the Corporation or any of their affiliates, and may otherwise
deal with the Corporation or its affiliates as if it were not Trustee.

     16.  No Recourse Against Others.  A director, officer, employee or
stockholder (other than the Corporation), as such, of the Corporation or the
Guarantor shall not have any liability for any obligations of the Corporation or
the Guarantor under the Debentures or the Indenture or for any claim based on,
in respect of, or by reason of such obligations or their creation.  Each Holder
by accepting a Debenture waives and releases all such liability.  This waiver
and release are part of the consideration for the issue of the Debentures.

     17.  Authentication.  This Debenture shall not be valid until the Trustee
manually signs the certificate of authentication on the first page of this
Debenture.

     18.  Abbreviations.  Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian) and U/G/M/A (= Uniform Gifts
to Minors Act).

     19.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the 
Committee on Uniform Security Identification Procedures, the Corporation had 
caused CUSIP numbers to be printed on the Note and has directed the Trustee to 
use CUSIP numbers in notices of redemption as a convenience to Holders. No 
representation is made as to accuracy of any of such numbers either as printed 
on the Note or as contained in any notice of redemption and reliance may be 
placed only on the other identification numbers placed thereon.

                                     - 5 -
<PAGE>
 
     20.  Miscellaneous.  This Debenture shall for all purposes be governed by,
and construed in accordance with, the laws of the State of Maryland.

     All terms used in this Debenture and Guarantee which are defined in the
Indenture shall have the meanings assigned to them in the Indenture.


              GUARANTEE OF LOCKHEED MARTIN TACTICAL SYSTEMS, INC.

     For value received, Lockheed Martin Tactical Systems, Inc., a New York
corporation (the "Guarantor"), hereby fully and unconditionally guarantees to
the Holder of the Security upon which this Guarantee is endorsed the due and
punctual payment of the principal of, premium, if any, and interest, if any, on
said Security, when and as the same shall become due and payable, whether by
declaration thereof or otherwise, according to the terms thereof and of the
Indenture referred to therein.

     The Guarantor hereby agrees that its obligations hereunder shall be
absolute and unconditional, irrespective of, and shall be unaffected by, any
failure to enforce the provisions of said Security or said Indenture, any
extension, renewal, settlement, compromise, waiver, consent or indulgence
granted to the Corporation with respect thereto, by operation of law or
otherwise, or any other circumstance which may otherwise constitute a legal or
equitable discharge of a surety or guarantor; provided that, notwithstanding the
foregoing, no such extension, renewal, settlement, compromise, waiver, consent,
indulgence or circumstance shall, without the consent of the Guarantor, increase
the principal amount of, premium, if any, or interest, if any, on said Security.
The Guarantor hereby agrees that this Guarantee shall be enforceable without any
demand, suit or proceeding first against the Corporation.  The Guarantor hereby
waives diligence, presentment, demand of payment, filing of claims with a court
in the event of insolvency or bankruptcy of the Corporation, any right to
require a proceeding first against the Corporation, protest or notice with
respect to said Security or the indebtedness evidenced thereby or with respect
to any sinking fund payment required by the terms of said Security and all
demands whatsoever, and covenants that this Guarantee will not be discharged
except in accordance with certain provisions set forth in the Indenture or by
payment in full of the principal of, premium, if any, and interest, if any, on
said Security.

     The Guarantor will be subrogated to all rights of the Holder against the
Corporation in respect of any amount paid by the Guarantor pursuant to the
provisions of this Guarantee; provided, however, that the Guarantor shall not be
entitled to enforce, or to receive any payments arising out of or based upon,
such right of subrogation until the principal of, premium, if any, and interest,
if any, on said Security shall have been paid in full.

                                     - 6 -
<PAGE>
 
     Notwithstanding the foregoing, the obligations of the Guarantor under this
Guarantee shall be limited to an amount equal to the largest amount that would
not render its obligations under this Guarantee subject to avoidance under
Section 548 of the United States Bankruptcy Code or any comparable provisions of
any applicable state law.

     This Guarantee shall not be valid or become obligatory for any purpose
until the certificate of authentication on said Security shall have been signed
manually by the Trustee under the Indenture referred to in said Security. Terms
used herein which are defined in such Indenture shall have the respective
meanings assigned thereto in the Indenture.

     This Guarantee shall be deemed to be a contract made under the laws of the
State of Maryland, and for all purposes shall be governed by and construed in
accordance with the laws of such State, except as may otherwise be required by
mandatory provisions of law.


                                     - 7 -
<PAGE>
 
     IN WITNESS WHEREOF, this Guarantee has been duly executed as of the date of
authentication on said Security.

                              LOCKHEED MARTIN TACTICAL
                                SYSTEMS, INC.


                              By:__________________________(SEAL)
                                 Vice President and Treasurer


                              By:__________________________
                                 Vice President and Assistant
                                    Secretary



                                     - 8 -
<PAGE>
 
     The Corporation will furnish to any Holder upon written request and without
charge a copy of the Indenture.  Requests may be made to:  Lockheed Martin
Corporation, 6801 Rockledge Drive, Bethesda, Maryland 20817, Attention:
Secretary.


                         _____________________________



I or we assign and transfer to

    Insert social security or other identifying number of assignee
   -----------------------------

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


________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
              (Print or type name, address and zip code of assignee)

this Debenture and irrevocably appoint _________________________ agent to
transfer this Debenture on the books of the Corporation.  The agent may
substitute another to act for him.

Dated:  ________________________________________________________________________

Signed:  _______________________________________________________________________
           (Sign exactly as name appears on the other side of this Debenture)


                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         



                    OPTION TO ELECT REPAYMENT ON MAY 1, 2008
                    ----------------------------------------


I or we hereby irrevocably elect to exercise the option to have the principal 
sum of ______________________________________________________________________,
       (Please insert principal amount as to which repayment is elected)

together with accrued interest thereon to May 1, 2008, repaid by

the Corporation on May 1, 2008.

If less than the entire principal amount of the within Debenture is to be
repaid, specify the denomination or denominations (which shall be in authorized
denominations) of the Debentures to be issued to the Holder for the portion of
the within Debenture not being repaid (in the absence of any such specification,
one such Debenture will be issued for the portion not being repaid):

Dated:  ________________________________________________________________________

Signed: ________________________________________________________________________
          (Sign exactly as name appears on the other side of this Debenture)


                                                                                
                          Signature Guarantee: _________________________________
                                               (Signature must be guaranteed by 
                                               an eligible institution within   
                                               the meaning of Rule 17A(d)-15    
                                               under the Securities Exchange    
                                               Act of 1934, as amended)         


                                     - 9 -

<PAGE>
 
                             MILES & STOCKBRIDGE,
                          A PROFESSIONAL CORPORATION
                                10 LIGHT STREET
                           BALTIMORE, MARYLAND 21202
 
                                 May 20, 1996
 
Lockheed Martin Corporation
6801 Rockledge Drive
Bethesda, Maryland 20817
 
Ladies and Gentlemen:
 
  We have acted as counsel to Lockheed Martin Corporation, a Maryland
corporation (the "Corporation"), in connection with the filing of a
Registration Statement on Form S-3 (Reg. No. 333-01939) under the Securities
Act of 1933, as amended (the "Act"), in respect of the Corporation's Debt
Securities to be issued from time to time pursuant to Rule 415 under the Act
and the offer and sale of $500,000,000 aggregate principal amount of the
Corporation's 6.55% Notes Due 1999, $750,000,000 aggregate principal amount of
the Corporation's 6.85% Notes Due 2001, $750,000,000 aggregate principal
amount of the Corporation's 7.25% Notes Due 2006, $600,000,000 aggregate
principal amount of the Corporation's 7.65% Debentures Due 2016, $600,000,000
aggregate principal amount of the Corporation's 7.75% Debentures Due 2026, and
$300,000,000 aggregate principal amount of the Corporation's 7.20% Debentures
Due 2036 (collectively, the "Securities"). Payments in respect of the
Securities are guaranteed by Lockheed Martin Tactical Systems, Inc., a New
York corporation and a wholly owned subsidiary of the Corporation (the
"Guarantor"). In this capacity we have reviewed the Charter and By-Laws of the
Corporation, the Indenture dated as of May 15, 1996, by and among the
Corporation, the Guarantor and First Trust of Illinois, National Association
(the "Trustee") (as supplemented or modified by the Trust Indenture Act of
1939, the "Indenture"), the Registration Statement (including the exhibits
thereto), the Current Report on Form 8-K of the Corporation dated the date
hereof, the corporate proceedings of the Corporation relating to the
authorization of the issuance of the Debt Securities and the Securities, and
such certificates and other documents as we deemed necessary or advisable for
the purposes of this opinion.
 
  Based on the foregoing, we are of the opinion that the Securities have been
duly and validly authorized by the Corporation, and upon proper execution,
authentication and delivery in accordance with the terms of the Indenture
against payment therefor, the Securities will be legally issued and will
constitute valid and binding obligations of the Corporation entitled to the
benefits of the Indenture.
 
  We hereby consent to the filing of this opinion as an exhibit to the Current
Reports on Form 8-K of the Corporation and the Guarantor each dated the date
hereof and to the reference to us under the heading "Validity" in the
Prospectus dated May 10, 1996 and under the heading "Validity of the Offered
Debt Securities" in the Prospectus Supplement dated May 16, 1996. In giving
our consent, we do not thereby admit that we are in the category of persons
whose consent is required under Section 7 of the Act or rules and regulations
of the Securities and Exchange Commission thereunder.
 
                                          Very truly yours,
 
                                          Miles & Stockbridge,
                                          A Professional Corporation
 
                                                   /s/ Glenn C. Campbell
                                          By: _________________________________
                                            Principal

<PAGE>
 
                          LOCKHEED MARTIN CORPORATION
                                600 Third Avenue
                           New York, New York  10016



                                 May 20, 1996



Lockheed Martin Tactical Systems, Inc.
6801 Rockledge Drive
Bethesda, Maryland 20817

Ladies and Gentlemen:

     I am the Vice President and General Counsel of the Tactical Systems Sector
of Lockheed Martin Corporation, a Maryland corporation ("Lockheed Martin").
This letter is being delivered in connection with the filing with the Securities
and Exchange Commission (the "Commission") of a Current Report on Form 8-K of
Lockheed Martin in connection with the offer and sale of $500,000,000 aggregate
principal amount of Lockheed Martin's 6.55% Notes Due 1999, $750,000,000
aggregate principal amount of Lockheed Martin's 6.85% Notes Due 2001,
$750,000,000 aggregate principal amount of Lockheed Martin's 7.25% Notes Due
2006, $600,000,000 aggregate principal amount of Lockheed Martin's 7.65%
Debentures Due 2016, $600,000,000 aggregate principal amount of Lockheed
Martin's 7.75% Debentures Due 2026, and $300,000,000 aggregate principal amount
of Lockheed Martin's 7.20% Debentures Due 2036 (collectively, the "Securities"),
pursuant to a Registration Statement on Form S-3 (Reg. No. 333-01939) (as
amended, the "Registration Statement") under the Securities Act of 1933, as
amended (the "Act"), and the guarantees (the "Guarantees") of Lockheed Martin
Tactical Systems, Inc., a New York corporation (the "Corporation") of such
Securities.  I have reviewed the Charter and By-laws of the Corporation, the
Indenture dated as of May 15, 1996, by and between Lockheed Martin, the
Corporation and First Trust of Illinois, National Association (the "Trustee")
(as supplemented or modified by the Trust Indenture Act of 1939, collectively,
the "Indenture"), the Registration Statement (including the exhibits thereto),
the Current Report on Form 8-K of Lockheed Martin dated the date hereof
(including the exhibits thereto), the corporate proceedings of the Corporation
relating to the authorization of the Guarantees and such certificates and other
documents as I have deemed necessary or advisable for the purposes of this
opinion.
<PAGE>
 
Lockheed Martin Tactical
  Systems, Inc.
May 20, 1996
Page 2


     Based on the foregoing, I am of the opinion that the Guarantees have been
duly and validly authorized by the Corporation, and upon proper execution,
authentication and delivery in accordance with the terms of the Indenture
against payment to Lockheed Martin for the Securities, the Guarantees will be
legally issued and will constitute valid and binding obligations of the
Corporation entitled to the benefits of the Indenture.

     I hereby consent to the filing of this opinion as an exhibit to the Current
Reports on Form 8-K of Lockheed Martin and the Corporation each dated the date
hereof and to the reference to me under the heading "Validity" in the Prospectus
dated May 10, 1996 and under the heading "Validity of the Offered Debt
Securities" in the Prospectus Supplement dated May 16, 1996.  In giving my
consent, I do not thereby admit that I am in the category of persons whose
consent is required under Section 7 of the Act or the rules and regulations of
the Commission thereunder.

                                    Very truly yours,

                

                                     /s/ William J. LaSalle
                

<PAGE>
 
 
                                                                      EXHIBIT 12
 
                          LOCKHEED MARTIN CORPORATION
 
               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                      FOR THE QUARTER ENDED MARCH 31, 1996
                          (IN MILLIONS, EXCEPT RATIO)
 
<TABLE>
<S>                                                                        <C>
EARNINGS:
Earnings from continuing operations before income taxes................... $431
Interest expense..........................................................   71
Amortization of debt premium and discount, net............................   (1)
Portion of rents representative of an interest factor.....................   15
                                                                           ----
Adjusted earnings from continuing operations before income taxes
 and fixed charges........................................................ $516
                                                                           ====
FIXED CHARGES:
Interest expense.......................................................... $ 71
Capitalized interest......................................................    1
Amortization of debt premium and discount, net............................   (1)
Portion of rents representative of an interest factor.....................   15
                                                                           ----
Total fixed charges....................................................... $ 86
                                                                           ====
RATIO OF EARNINGS TO FIXED CHARGES........................................  6.0
                                                                           ====
</TABLE>

<PAGE>
 
LOCKHEED MARTIN CORPORATION
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS
FOR THE QUARTER ENDED MARCH 31, 1996
(IN MILLIONS, EXCEPT RATIO)

<TABLE> 
<S>                                                               <C> 
EARNINGS:

Earnings from continuing operations before income taxes             $431
Interest expense                                                      71
Amortization of debt premium and discount, net                        (1)
Portion of rents representative of an interest factor                 15
                                                                  ------
Adjusted earnings from continuing operations before
 income taxes and fixed charges                                     $516
                                                                  ======

COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS:

Interest expense                                                     $71
Capitalized interest                                                   1
Amortization of debt premium and discount, net                        (1)
Portion of rents representative of an interest factor                 15
Dividends on preferred stock, pretax                                  24
                                                                  ------
Total combined fixed charges and preferred stock dividends          $110
                                                                  ======

RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND 
 PREFERRED STOCK DIVIDENDS                                           4.7
                                                                  ======
</TABLE> 
<PAGE>
 
LOCKHEED MARTIN CORPORATION
PRO FORMA RATIO OF EARNINGS TO FIXED CHARGES
FOR THE QUARTER ENDED MARCH 31, 1996
(IN MILLIONS, EXCEPT RATIO)

<TABLE> 
<CAPTION> 
                                                             LOCKHEED     TACTICAL     PRO FORMA      PRO FORMA
                                                              MARTIN      SYSTEMS     ADJUSTMENTS     COMBINED
                                                              ------      -------     -----------     --------
<S>                                                         <C>           <C>         <C>             <C> 
EARNINGS:

Earnings from continuing operations before income taxes         $431          $184         ($162)         $453
Interest expense                                                  71            47           120           238
Amortization of debt premium and discount, net                    (1)            -             -            (1)
Portion of rents representative of an interest factor             15             8             -            23
                                                            --------      --------      --------      --------
Adjusted earnings from continuing operations before
 income taxes and fixed charges                                 $516          $239          ($42)         $713
                                                            ========      ========      ========      ========

FIXED CHARGES:

Interest expense                                                 $71           $47          $120          $238
Capitalized interest                                               1             -             -             1
Amortization of debt premium and discount, net                    (1)            -             -            (1)
Portion of rents representative of an interest factor             15             8             -            23
                                                            --------      --------      --------      --------
Total fixed changes                                              $86           $55          $120          $261
                                                            ========      ========      ========      ========
RATIO OF EARNINGS TO FIXED CHARGES                               6.0           4.3                         2.7
                                                            ========      ========                    ========
</TABLE> 
<PAGE>
 
LOCKHEED MARTIN CORPORATION
PRO FORMA RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK 
DIVIDENDS
FOR THE QUARTER ENDED MARCH 31, 1996
(IN MILLIONS, EXCEPT RATIO)

<TABLE> 
<CAPTION> 
                                                             LOCKHEED     TACTICAL     PRO FORMA      PRO FORMA
                                                              MARTIN      SYSTEMS     ADJUSTMENTS     COMBINED
                                                              ------      -------     -----------     --------
<S>                                                         <C>           <C>         <C>             <C> 
EARNINGS:

Earnings from continuing operations before income taxes         $431          $184         ($162)         $453
Interest expense                                                  71            47           120           238
Amortization of debt premium and discount, net                    (1)            -             -            (1)
Portion of rents representative of an interest factor             15             8             -            23
                                                            --------      --------      --------      --------
Adjusted earnings from continuing operations before
 income taxes and fixed charges                                 $516          $239          ($42)         $713
                                                            ========      ========      ========      ========

COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS:

Interest expense                                                 $71           $47          $120          $238
Capitalized interest                                               1             -             -             1
Amortization of debt premium and discount, net                    (1)            -             -            (1)
Portion of rents representative of an interest factor             15             8             -            23
Dividends on preferred stock, pretax                              24             -             -            24
                                                            --------      --------      --------      --------
Total combined fixed charges and preferred stock dividends      $110           $55          $120          $285
                                                            ========      ========      ========      ========
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND
 PREFERRED STOCK DIVIDENDS                                       4.7           4.3                         2.5
                                                            ========      ========                    ========
</TABLE> 



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission