RAYTHEON CO/
S-3/A, 2000-02-22
SEARCH, DETECTION, NAVAGATION, GUIDANCE, AERONAUTICAL SYS
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<PAGE>


As filed with the Securities and Exchange Commission on February 22, 2000
                                                      Registration No. 333-82529

==============================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, DC 20549


                                 PRE-EFFECTIVE

                              AMENDMENT NO.4 TO
                                   FORM S-3

                         REGISTRATION STATEMENT UNDER
                          THE SECURITIES ACT OF 1933

                               ________________

                               RAYTHEON COMPANY
            (Exact name of registrant as specified in its charter)

                                  95-1778500
                    (I.R.S. Employer Identification Number)

                               ________________

                               141 Spring Street
                        Lexington, Massachusetts 02421
                                (781) 862-6600
  (Address, including zip code and telephone number, including area code, of
                   registrant's principal executive offices)

             Thomas D. Hyde, Esq.                      Copy to:
       Senior Vice President, General            Michael P. O'Brien, Esq.

           Counsel and Secretary                   Bingham Dana LLP
              Raytheon Company                     150 Federal Street
              141 Spring Street                    Boston, MA 02110
          Lexington, Massachusetts, 02421          (617) 951-8000
                (781) 862-6600
   (Address, including zip code and telephone number, including area code of
                         agent for service of process)

                               ________________

Approximate date of commencement of proposed sale of the securities to the
public: From time to time, after the effective date of this Registration
Statement.

If the only securities being registered on this form are being offered pursuant
to dividend or interest reinvestment plans, please check the following box. [_]

If any of the securities being registered on this form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

If this form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, please check the following box and list
the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_] _________________

If this form is a post-effective amendment filed pursuant to Rule 462(c) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_] _________________

If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]


<TABLE>
<CAPTION>
                                                  CALCULATION OF REGISTRATION FEE
- --------------------------------------------------------------------------------------------------------------------------------
                                                                 Proposed Maximum       Proposed Maximum
          Title of Each Class of               Amount to be       Offering Price       Aggregate Offering       Amount of
       Securities to be Registered              Registered          Per Unit(1)            Price(1)(2)       Registration Fee
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>                    <C>                   <C>                   <C>
Debt Securities(4)(7)                              (3)                (3)                      (3)                 (3)
- --------------------------------------------------------------------------------------------------------------------------------
Preferred Stock, $0.01 par value per               (3)                (3)                      (3)                 (3)
share(5)(7)
- --------------------------------------------------------------------------------------------------------------------------------
Class B Common Stock, $0.01 par value per          (3)                (3)                      (3)                 (3)
share(6)(7)
- --------------------------------------------------------------------------------------------------------------------------------
Warrants(8)                                        (3)                (3)                      (3)                 (3)
- --------------------------------------------------------------------------------------------------------------------------------
   Total:                                 $3,000,000,000(9)          100%              $3,000,000,000(9)      $834,000(10)
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>
========================================================================

(1)  The proposed maximum per unit and aggregate offering prices per class of
     security will be determined from time to time by the Registrant in
     connection with the issuance by the Registrant of the securities registered
     hereunder.

(2)  Estimated solely for purposes of determining the registration fee pursuant
     to Rule 457(o) under the Securities Act.

(3)  Not required to be included in accordance with General Instruction II.D. of
     Form S-3 under the Securities Act.

(4)  Subject to note (9) below, there is being registered hereunder an
     indeterminate principal amount of Debt Securities as may be sold, from time
     to time, by the Registrant. If any Debt Securities are issued at an
     original issue discount, then the offering price shall be in such greater
     principal amount as shall result in an aggregate initial offering price not
     to exceed $3.0 billion less the dollar amount of any securities previously
     issued hereunder.

(5)  Subject to note (9) below, there is being registered hereunder an
     indeterminate number of shares of Preferred Stock of the Company as may be
     sold from time to time.

(6)  Subject to note (9) below, there is being registered hereunder an
     indeterminate number of shares of Class B Common Stock of the Company as
     may be sold from time to time.

(7)  Subject to note (9) below, there is being registered hereunder an
     indeterminate principal amount of Debt Securities, and an indeterminate
     number of shares of Preferred Stock and Class B Common Stock of the
     Company, as shall be issuable upon conversion or redemption of Debt
     Securities, Preferred Stock or Class B Common Stock of the Company, as the
     case may be, or upon the exercise of Warrants of the Company registered
     hereunder.

(8)  Subject to note (9) below, there is being registered hereunder an
     indeterminate amount and number of Warrants of the Company, representing
     rights to purchase certain of the Debt Securities, Preferred Stock or Class
     B Common Stock of the Company registered hereunder.

(9)  In no event will the aggregate initial offering price of all securities
     issued from time to time pursuant to this Registration Statement exceed
     $3.0 billion or the equivalent thereof in one or more foreign currencies,
     foreign currency units, or composite currencies. The aggregate amount of
     Class B Common Stock registered hereunder is further limited to that which
     is permissible under Rule 415(a)(4) under the Securities Act. The
     securities registered hereunder may be sold separately or as units with
     other securities registered hereunder.

(10) A filing fee of $834,000 was previously paid upon the original filing of
     this Registration Statement on July 9, 1999.

     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
<PAGE>

- ------------------------------------------------------------------------------
The information in this prospectus is not complete and may be changed. We
may not sell these securities until the registration statement filed with
the Securities and Exchange Commission is effective. This prospectus is not
an offer to sell these securities and it is not soliciting an offer to buy
these securities in any state where the offer or sale is not permitted.
- ------------------------------------------------------------------------------

              Subject to Completion, Dated February 22, 2000
Prospectus
                               Raytheon Company

                                Debt Securities
                                Preferred Stock
                             Class B Common Stock
                                   Warrants
                             _____________________

By this prospectus, we may offer, from time to time, the following securities:

     .  our unsecured senior debt securities

     .  our unsecured subordinated debt securities

     .  warrants to purchase our debt securities

     .  shares of our preferred stock

     .  warrants to purchase shares of our preferred stock

     .  shares of our Class B common stock

     .  warrants to purchase shares of our Class B common stock

     .  units consisting of some or all of these securities

        Investing in our securities involves risks. See "Risk Factors" beginning
on page 5.

        We may offer the offered securities in different series from time to
time in amounts, at prices and on terms determined at the time of the offering.
We will provide you with specific terms of the applicable offered securities in
supplements to this prospectus. The aggregate initial offering price of the
securities that we may issue under this prospectus will not exceed $3.0 billion.

        Our Class B common stock is listed for trading on the New York Stock
Exchange, the Chicago Stock Exchange and the Pacific Exchange under the symbol
RTNb. On February 17, 2000, the last reported sale price of our Class B common
stock on the New York Stock Exchange was $19.875.

        You should read this prospectus and any prospectus supplement carefully
before you decide to invest. This prospectus may not be used to make sales of
the offered securities unless it is accompanied by a prospectus supplement
describing the method and terms of the offering of those offered securities. We
may sell the securities, or we may distribute them through underwriters or
dealers. In addition, the underwriters may overallot a portion of the
securities.

        Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.
<PAGE>

<TABLE>
<CAPTION>
                               Table of Contents
                                                                                                 Page
                                                                                                 ----
<S>                                                                                              <C>
Raytheon Company...............................................................................     3
         Electronics...........................................................................     3
         Aircraft..............................................................................     4
         Engineering and Construction..........................................................     4
         Recent Developments...................................................................     4
Risk Factors...................................................................................     5
About this Prospectus..........................................................................    12
Where You Can Find More Information............................................................    13
Disclosure Regarding Forward-Looking Statements................................................    13
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends......................    14
Use of Proceeds................................................................................    14
Description of Our Securities..................................................................    15
Description of Our Debt Securities.............................................................    15
         Subordination of Subordinated Debt Securities.........................................    17
         Events of Default.....................................................................    17
         Defeasance and Covenant Defeasance....................................................    19
         Modification and Waiver...............................................................    19
         Covenants.............................................................................    20
         Consolidation, Merger and Sale of Assets..............................................    20
         Conversion or Exchange Rights.........................................................    20
         Global Securities.....................................................................    20
         Our Debt Trustee......................................................................    23
Description of Our Preferred Stock.............................................................    23
         Hughes Separation Agreement...........................................................    24
Description of Our Class B Common Stock........................................................    24
         Provisions of our Restated Certificate of Incorporation
         and Amended and Restated By-Laws......................................................    26
         Stockholder Rights Plan...............................................................    26
         Section 203 of the Delaware General Corporation Law...................................    27
         Stock Exchange Listing................................................................    28
         Transfer Agent........................................................................    28
Description of Our Securities Warrants.........................................................    28
Plan of Distribution...........................................................................    29
Legal Matters..................................................................................    30
Experts  ......................................................................................    30
</TABLE>

                                      -2-
<PAGE>

                               Raytheon Company

     Raytheon Company is a global technology leader, with worldwide 1999 sales
of $19.8 billion. We provide products and services in the areas of defense and
commercial electronics, business and special mission aircraft, and engineering
and construction. We have operations throughout the United States and serve
customers in more than 80 countries around the world. Our principal executive
offices are located at 141 Spring Street, Lexington, Massachusetts 02421. Our
telephone number is (781) 862-6600.

Electronics

     Defense Electronics. Our defense electronics businesses represent the
combination and consolidation of four legacy defense organizations - Raytheon
Electronic Systems, Raytheon E-Systems, Raytheon TI Systems and the defense
electronics business of Hughes Electronics Corporation.

     We design, manufacture and service advanced electronic devices, equipment
and systems for both government and commercial customers. In addition to defense
electronic systems, we have been successful in the conversion of defense
electronic technologies to commercial applications such as air traffic control,
environmental monitoring and communications. Our defense electronics businesses
currently consist of the following five business units, which are focused on the
following programs:

     Defense Systems:

          .    anti-ballistic missile systems
          .    air defense
          .    air-to-air, surface-to-air, and air-to-surface missiles
          .    naval and maritime systems
          .    ship self-defense systems
          .    torpedoes; strike, interdiction and cruise missiles
          .    advanced munitions

     Sensors and Electronic Systems:

          .    airborne and surface radars
          .    electronic warfare
          .    surveillance and reconnaissance systems
          .    precision guidance systems
          .    tactical systems

     Command, Control, Communication and Information Systems:

          .    command, control and communications systems
          .    air traffic control systems
          .    tactical radios
          .    satellite communication ground control terminals
          .    wide area surveillance systems
          .    ground-based information processing systems
          .    large scale information retrieval, processing and distribution
               systems
          .    global broadcast systems

         Aircraft Integration Systems:

          .    integration of airborne surveillance and intelligence systems
          .    aircraft modifications
          .    head-of-state aircraft systems

                                      -3-
<PAGE>
     Training and Services:

          .    training services and integrated training programs
          .    technical services
          .    logistics and support

     Commercial Electronics. Our commercial electronics businesses produce,
among other things:

          .    marine radars and other marine electronics
          .    transmit/receive modules for satellite communications projects
          .    other electronic components for a wide range of applications

     See "Recent Developments" regarding our announcements to further reorganize
our electronics businesses.

Aircraft

     Raytheon Aircraft, a subsidiary of Raytheon Company, offers one of the
broadest product lines in the general aviation market. Raytheon Aircraft
manufactures, markets and supports piston-powered aircraft, jet props and light
and medium jets for the world's commercial, regional airline and military
aircraft markets. Raytheon Aircraft is the prime contractor for the U.S. Air
Force/U.S. Navy Joint Primary Aircraft Training System (JPATS). In addition, in
1997 Raytheon Aircraft launched its own fractional or shared aircraft ownership
business called Raytheon Travel Air. This program currently has over 200
customers.

Engineering and Construction

     Raytheon Engineers & Constructors, a subsidiary of Raytheon Company, is one
of the largest engineering and construction firms in the United States, serving
markets throughout the world. Raytheon Engineers & Constructors designs,
constructs and maintains facilities and plants operated by a range of customers,
including:

          .  independent power producers
          .  utilities
          .  petroleum companies
          .  pulp and paper companies
          .  industrial concerns
          .  governments

Recent Developments

     Financial Results. On January 25, 2000, we announced our financial results
for the year and fourth quarter ended December 31, 1999. For the 1999 fiscal
year, our earnings were $404 million, or $1.19 per diluted share. We also
reported revenue for the 1999 fiscal year of $19.8 billion. These financial
results were consistent with the public estimate provided by us on January 18th,
and represented a decline from 1998 net income of $844 million and 1998 diluted
earnings per share of $2.47. Revenue for the 1999 fiscal year was up slightly
over revenue for the 1998 fiscal year due to increased sales in missile defense
systems and some improvement in the power business of Raytheon Engineers &
Constructors. The overall decline in earnings was due to contract related
adjustments, pricing pressures, and the cumulative effect of two internal
accounting changes consistent with SOP 98-5 and SAB 101 (discussed below).
Results for 1998 also included gains from divestitures.

     For the fourth quarter of 1999, our revenue was $4.8 billion, our earnings
were $72 million and our diluted earnings per share in the quarter were $0.21,
compared with revenue of $5.3 billion, earnings of $341 million and diluted
earnings per share of $1.00, for the same period of 1998. The revenue decline
during the fourth quarter was due primarily to lower missile shipments, certain
nonrecurring events from the 1998 fourth quarter in the electronics businesses,
aircraft shipments and accounting adjustments at Raytheon Aircraft Company and
the divestiture of Cedarapids, Inc. These factors, along with contract
adjustments in the

                                      -4-
<PAGE>


electronics businesses and cost performance at both Raytheon Aircraft Company
and Raytheon Engineers & Constructors, contributed to lower earnings for the
fourth quarter of 1999.

     On December 6, 1999, the SEC issued Staff Accounting Bulletin 101, which
clarified the conditions for recognizing revenue on bill and hold transactions.
As previously announced, we recently completed a review of revenue recognition
practices at Raytheon Aircraft Company. Based on this evaluation, we have now
restated our financial results consistent with SAB 101. This restatement
resulted in a negative effect of $0.11 per share on 1999 fourth quarter
earnings.

     In keeping with our ongoing consolidation efforts and to further simplify
our organizational structure, in November 1999, we announced a reorganization of
our electronics businesses. Under the new structure, Raytheon Systems Company
will be eliminated, and the Defense Systems and Sensors and Electronics Systems
segments will be combined.

     Legal Developments. As described in our quarterly report on Form 10-Q for
the fiscal quarter ended October 3, 1999, we and two of our officers were named
as defendants in class action lawsuits alleging that the defendants violated
federal securities laws by making false and misleading statements and by failing
to disclose material information concerning our financial performance, thereby
causing the value of the our stock to be artificially inflated. We are
contesting these lawsuits vigorously. In addition, following the restatement of
our financial results consistent with SAB 101 (as discussed above), we received
an informal inquiry from the SEC Division of Enforcement regarding the
restatement. We are in the process of responding to this inquiry.

                                 Risk Factors

     An investment in our securities involves a high degree of risk. In addition
to the other information included in this prospectus, you should carefully
consider the following risk factors in determining whether or not to purchase
the securities offered under this prospectus.

If the cost-cutting efforts currently being undertaken at two of our core
business units are not successful, our financial results may not improve, which
may result in more volatility in the price of our stock in the future.

     During 1998, we announced plans to reduce the workforce and close
facilities in conjunction with the consolidation and reorganization of two of
our business units, Raytheon Systems Company, our major defense electronics
operation, and Raytheon Engineers & Constructors, our engineering and
construction unit. Significant progress has been made to date in completing
these actions. As part of this effort, we have closed several facilities in the
United States while transferring the operations previously conducted at those
facilities to other company sites. In addition, several of Raytheon Systems
Company's operations were consolidated. Both units' workforces have also been
significantly reduced. In September 1999, we announced plans to further reduce
costs at Raytheon Systems Company and Raytheon Engineers & Constructors. In
October 1999, we announced pretax charges totaling $599 million, including $147
million for restructuring charges for additional employment and facility space
reductions primarily at Raytheon Systems Company and Raytheon Engineers &
Constructors.

     These cost-cutting actions have been taken in an effort to improve these
units' competitive position in their markets and ultimately, our results of
operations. There can be no assurance that these actions will ultimately be
successful in improving our results of operations. The results of operations of
these two units are affected by a wide variety of factors, including factors
that affect their industries generally. A failure to improve these important
business units' results of operations, which constitute a vital part of our
results of operations, could result in more volatility in the price of our
stock.

                                      -5-
<PAGE>
     The restructuring charges resulting from these cost-cutting efforts have
had a negative impact on our earnings in 1999. There can be no assurance that
additional reductions and associated restructuring charges will not be required
in the future to improve one or both of these units' operations. Any additional
reductions and associated restructuring charges could negatively impact future
financial results.

Because we have recently sold a number of our business units, our business is
less diversified, which could reduce our earnings and might make us more
susceptible to negative conditions in our remaining businesses.

     Consistent with our strategy of focusing on and streamlining our core
businesses and paying down our debt, during 1998 and 1999 we divested several
non-core business units. These include three business units that we agreed to
divest when we acquired the defense operations of Hughes Electronics Corporation
and the defense assets of Texas Instruments Incorporated in 1997. As a result of
these divestitures, we no longer receive revenues from these operations and,
without offsetting increases in revenues in our other businesses, our overall
revenues would decrease, which would have a negative affect on our financial
condition.

     In addition, as a result of these divestitures, our business is now less
diversified and thus more dependent on our remaining businesses. As a result, we
are now more sensitive to conditions and trends in the remaining industries in
which we operate. Negative conditions and trends in these remaining industries
could cause our financial condition and results of operations to suffer more
heavily than would occur when our business lines were more diversified. Our
inability to overcome these negative conditions and trends could have a negative
impact on our financial condition.

We heavily depend on our government contracts, which are only partially funded,
subject to immediate termination and heavily regulated and audited, and the
termination or failure to fund one or more of these contracts could have a
negative impact on our operations.

     We act as prime contractor or major subcontractor for many different
government programs. Over its lifetime, a program may be implemented by the
award of many different individual contracts and subcontracts. The funding of
government programs is subject to congressional appropriations. Although multi-
year contracts may be authorized in connection with major procurements, Congress
generally appropriates funds on a fiscal year basis even though a program may
continue for several years. Consequently, programs are often only partially
funded initially and additional funds are committed only as Congress makes
further appropriations. The termination of funding for a government program
would result in a loss of anticipated future revenues attributable to that
program. That could have a negative impact on our operations. In addition, the
termination of a program or failure to commit additional funds to a program
already started could increase our overall costs of doing business.

     Generally, government contracts are subject to oversight audits by
government representatives and contain provisions permitting termination, in
whole or in part, without prior notice at the government's convenience upon the
payment of compensation only for work done and commitments made at the time of
termination. We can give no assurance that one or more of our government
contracts will not be terminated under these circumstances. Also, we can give no
assurance that we would be able to procure new government contracts to offset
the revenues lost as a result of any termination of our contracts. As our
revenues are dependent on our procurement, performance and payment under our
contracts, the loss of one or more critical contracts would have a negative
impact on our financial condition.

     Our government business is also subject to specific procurement regulations
and a variety of socio-economic and other requirements. These requirements,
although customary in government contracts, increase our performance and
compliance costs. These costs might increase in the future, reducing our
margins, which could have a negative effect on our financial condition. Failure
to comply with these regulations and requirements could lead to suspension or
debarment, for cause, from government contracting or subcontracting for a period
of time. Among the causes for debarment are violations of various statutes,
including those related to:

          .  procurement integrity
                                      -6-
<PAGE>

          .  export control
          .  government security regulations
          .  employment practices
          .  protection of the environment
          .  accuracy of records and the recording of costs

     The termination of a government contract or relationship as a result of any
of these acts would have a negative impact on our operations and could have a
negative effect on our reputation and ability to procure other government
contracts in the future.

     In addition, sales to the government may be affected by:

          .  changes in procurement policies
          .  budget considerations
          .  changing concepts of national defense
          .  political developments abroad

     The influence of any of these factors, which are largely beyond our
control, could also negatively impact our financial condition. We also may
experience problems associated with advanced designs required by the government
which may result in unforeseen technological difficulties and cost overruns.
Failure to overcome these technological difficulties and the occurrence of cost
overruns would have a negative impact on our results.

We depend on the U.S. Government for a significant portion of our sales, and the
loss of this relationship or a shift in government funding could have severe
consequences on the financial condition of Raytheon.

     Approximately 66% of our net sales in 1998 were to the U.S. government.
Therefore, any significant disruption or deterioration of our relationship with
the U.S. government would significantly reduce our revenues. Our U.S. government
programs must compete with programs managed by other defense contractors for a
limited number of programs and for uncertain levels of funding. Our competitors
continuously engage in efforts to expand their business relationships with the
U.S. government at our expense, and are likely to continue these efforts in the
future. The U.S. government may choose to use other defense contractors for its
limited number of defense programs. In addition, the funding of defense programs
also competes with non-defense spending of the U.S. government. Budget decisions
made by the U.S. government are outside of our control and have long-term
consequences for the size and structure of Raytheon. A shift in government
defense spending to other programs in which we are not involved or a reduction
in U.S. government defense spending generally could have severe consequences for
our results of operations.

We derive a significant portion of our revenues from international sales and are
subject to the risks of doing business in foreign countries.

     In 1998, sales to international customers accounted for approximately 26%
of our net sales. We expect that international sales will continue to account
for a substantial portion of our net sales for the foreseeable future, and may
increase as a percentage of our net sales. As a result, we are subject to risks
of doing business internationally, including:

 .  changes in regulatory requirements
 .  domestic and foreign government policies, including requirements to expend a
   portion of program funds locally and governmental industrial cooperation
   requirements
 .  fluctuations in foreign currency exchange rates
 .  delays in placing orders
 .  the complexity and necessity of using foreign representatives and consultants
 .  the uncertainty of adequate and available transportation
 .  the uncertainty of the ability of foreign customers to finance purchases

                                      -7-
<PAGE>
 .  uncertainties and restrictions concerning the availability of funding credit
   or guarantees
 .  imposition of tariffs or embargoes, export controls and other trade
   restrictions
 .  the difficulty of management and operation of an enterprise spread over
   various countries
 .  compliance with a variety of foreign laws as well as U.S. laws affecting the
   activities of U.S. companies abroad and
 .  general economic and geopolitical conditions, including international
   hostilities, inflation, trade relationships and military and political
   alliances

     While these factors or the impact of these factors are difficult to
predict, any one or more of these factors could adversely affect our operations
in the future.

     Licenses are required from government agencies under the Export
Administration Act, the Trading with the Enemy Act of 1917 and the Arms Export
Control Act of 1976 for export of many of our products. We can give no assurance
that we will be successful in obtaining these necessary licenses in order to
conduct business abroad. In the case of certain sales of defense equipment and
services to foreign governments, the U.S. government's Executive Branch must
notify Congress at least 15 to 30 days, depending on the location of the sale,
prior to authorizing these sales. During that time, Congress may take action to
block the proposed sale.

We may suffer problems relating to Year 2000 date conversion.

     The Year 2000 problem concerns the inability of information systems to
properly recognize and process date-sensitive information beyond January 1,
2000. In January 1998, we initiated a formal comprehensive enterprise-wide
program to identify and to resolve Year 2000 related issues. The scope of the
program included the investigation of all Raytheon functions and products and
all internally used hardware and software systems, including embedded systems in
what are not traditionally considered information technology systems. We
followed an eight-step risk management process grouped into two major phases:
detection, including planning and awareness, inventory, triage, and detailed
assessment; and correction, including resolution, test planning, test execution,
and deployment.

     Through the first six weeks of calendar year 2000, we completed the
transition from calendar year 1999 to 2000 with no reported significant impact
to our operations. We will continue to evaluate Year 2000 related exposures at
our suppliers and customers over the next several months. We will also continue
to monitor our systems, facilities and products to ensure that latent defects do
not manifest themselves over the next few months. Although our Year 2000
conversion efforts were successful, there are some remaining Year 2000-related
risks. These risks include potential product supply issues and other non-
operational issues.

     Since January 1998, we have spent approximately $120 million to resolve
Year 2000 related issues. These costs included costs related to employees,
inside and outside consultants and services, system replacements and other
equipment requirements.

Competition within our markets may reduce our procurement of future contracts
and our sales.

     The military and commercial industries in which we operate are highly
competitive. Our competitors range from highly resourceful small concerns, which
engineer and produce specialized items, to large, diversified firms. Several
established and emerging companies offer a variety of products for applications
similar to those of our products. Our competitors may have more extensive or
more specialized engineering, manufacturing and marketing capabilities than we
do in some areas. There can be no assurance that we can continue to compete with
these firms. In addition, some of our largest customers could develop the
capability to manufacture products similar to products that we manufacture. This
would result in these customers supplying their own products and competing
directly with us for sales of these products, all of which could significantly
reduce our revenues and seriously harm our business.

                                      -8-
<PAGE>

     Furthermore, we are facing increased international competition and cross-
border consolidation of competition. There can be no assurance that we will be
able to compete successfully against our current or future competitors or that
the competitive pressures we face will not result in reduced revenues and market
share or seriously harm our business.

Our future success will depend on our ability to develop new technologies that
achieve market acceptance.

     Both our commercial and defense markets are characterized by rapidly
changing technologies and evolving industry standards. Accordingly, our future
performance depends on a number of factors, including our ability to:

 .  identify emerging technological trends in our target markets
 .  develop and maintain competitive products
 .  enhance our products by adding innovative features that differentiate our
   products from those of our competitors and
 .  manufacture and bring products to market quickly at cost-effective prices

     We believe that, in order to remain competitive in the future, we will need
to continue to develop new products, which will require the investment of
significant financial resources in new product development. The need to make
these expenditures could divert our attention and resources from other projects
and we cannot be sure that these expenditures will ultimately lead to the timely
development of new technology. Due to the design complexity of our products, we
may in the future experience delays in completing development and introduction
of new products. Any delays could result in increased costs of development or
deflect resources from other projects. In addition, there can be no assurance
that the market for our products will develop or continue to expand as we
currently anticipate. The failure of our technology to gain market acceptance
could significantly reduce our revenues and harm our business. Furthermore, we
cannot be sure that our competitors will not develop competing technology which
gains market acceptance in advance of our products. The possibility that our
competitors might develop new technology or products might cause our existing
technology and products to become obsolete. If we fail in our new product
development efforts or our products fail to achieve market acceptance more
rapidly than our competitors, our revenues will decline and our business,
financial condition and results of operations will be negatively affected.

Our financial performance is significantly dependent on the timely and
successful conversion of our defense products into commercial markets.

     In order to leverage technology that we develop for defense applications,
we frequently strive to adapt existing defense technology for commercial
markets. We may not be successful, however, in converting our defense systems
and devices into commercially viable products, and the market for such products
may be limited. Any of these results could have a negative impact on our future
revenues.

We enter into fixed-price contracts which could subject us to losses in the
event that we have cost overruns.

     Sometimes we enter into contracts on a firm, fixed price basis. This allows
us to benefit from cost savings, but carries the burden of cost overruns. If our
initial estimates are incorrect, we can lose money on these contracts. In
addition, some of our contracts have provisions relating to cost controls and
audit rights and if we fail to meet the terms specified in those contracts then
we may not realize their full benefits. Our financial condition is dependent on
our ability to maximize our earnings from our contracts. Lower earnings caused
by cost overruns and cost controls would have a negative impact on our financial
results.

We depend on the recruitment and retention of qualified personnel, and our
failure to attract and retain personnel could seriously harm our business.

     Due to the specialized nature of our businesses, our future performance is
highly dependent upon the continued services of our key engineering personnel
and executive officers. Our prospects depend upon our ability

                                      -9-
<PAGE>
to attract and retain qualified engineering, manufacturing, marketing, sales and
management personnel for our operations. Competition for personnel is intense
and we may not be successful in attracting or retaining qualified personnel. Our
failure to compete for these personnel could seriously harm our business,
results of operations and financial condition.

A significant portion of our labor force is unionized, and our failure to
maintain stable relationships with our unions could seriously harm our business.

     Approximately 16,000 of our employees are unionized, which represented
approximately 16% of our employees at June 30, 1999. As a result, we may
experience work stoppages from time to time, and we are vulnerable to the
demands imposed by our collective bargaining relationships. We cannot predict
how stable these relationships, currently with 13 different labor organizations,
will be or whether we will be able to meet the requirements of these unions
without impacting the financial condition of Raytheon. In addition, the presence
of unions may limit our flexibility in dealing with our workforce. Work
stoppages and instability in our union relationships could negatively impact our
ability to manufacture our products on a timely basis, resulting in strain on
our relationships with our customers as well as a loss of revenues. That would
adversely affect our results of operations.

We may be unable to adequately protect our intellectual property rights, which
could affect our ability to compete.

     Protecting our intellectual property rights is critical to our ability to
compete and succeed as a company. We own a large number of United States and
foreign patents and patent applications as well as trademark, copyright and
semiconductor chip mask work registrations which are necessary and contribute
significantly to the preservation of our competitive position in the market.
There can be no assurance that any of these patents and other intellectual
property will not be challenged, invalidated or circumvented by third parties.
In some instances, we have augmented our technology base by licensing the
proprietary intellectual property of others. In the future, we may not be able
to obtain necessary licenses on commercially reasonable terms. We enter into
confidentiality and invention assignment agreements with our employees, and
enter into non-disclosure agreements with our suppliers and appropriate
customers so as to limit access to and disclosure of our proprietary
information. These measures may not suffice to deter misappropriation or
independent third party development of similar technologies. Moreover, the
protection provided to our intellectual property by the laws and courts of
foreign nations may not be as advantageous to us as the remedies available under
United States law.

We may incur costs in complying with environmental laws which could negatively
impact our financial condition.

     We are generators of both hazardous and non-hazardous wastes. The
treatment, storage, transportation and disposal of these hazardous and non-
hazardous wastes are governed by various environmental laws and regulations.
Compliance with these laws is complicated and time-consuming. If we do not
handle hazardous wastes properly, we could be subject to significant
liabilities. In addition, the treatment, storage, transportation and disposal of
hazardous waste generated by our business is expensive and the costs of this
activity could increase in the future which could have a negative effect on our
results of operations.

Provisions in our charter documents and rights agreement could make it more
difficult to acquire Raytheon and may reduce the market price of our stock.

     Our certificate of incorporation and by-laws contain certain provisions,
such as a classified board of directors, a provision prohibiting stockholder
action by written consent, a provision prohibiting stockholders from calling
special meetings and a provision authorizing our Board of Directors to consider
factors other than stockholders' short-term interests in evaluating an offer
involving a change in control. Also, we have a rights plan, which limits the
ability of anyone to acquire more than 15% of our Class A or Class B Common
Stock. These provisions could have the effect of delaying or preventing a change
in control of Raytheon or the removal of

                                      -10-
<PAGE>
Raytheon management, of deterring potential acquirers from making an offer to
our stockholders and of limiting any opportunity to realize premiums over
prevailing market prices for Raytheon common stock. Provisions of the Rights
Agreement described under "Description of Our Class B Common Stock--Stockholder
Rights Plan," and the Hughes Separation Agreement, described under "Description
of Our Preferred Stock -- Hughes Separation Agreement" could also have the
effect of deterring changes of control of Raytheon.

We have agreed to restrictive covenants that could limit our ability to
participate in future defense industry consolidation.

     We are subject to covenants under the Hughes Separation Agreement that
prohibit us from entering into specific transactions and activities if these
activities would jeopardize the tax-free status of the merger of Raytheon and
defense business of Hughes Electronics or the transactions effected by General
Motors and Hughes Electronics immediately prior to the merger pursuant to which
Hughes' defense business became an independent, wholly-owned subsidiary of
General Motors and Class A Common Stock was distributed by General Motors to its
common stockholders. These covenants could prohibit us, in some cases, from
participating in defense industry consolidations and could also have the effect
of deterring us from capitalizing on opportunities that arise while the
covenants are in effect, including strategically advantageous mergers and
acquisitions. Our inability to pursue these activities could prevent us from
taking actions which might improve our results of operations.

We depend on component availability, subcontractor performance and our key
suppliers to manufacture and deliver our products.

     Our manufacturing operations are highly dependent upon the delivery of
materials by outside suppliers in a timely manner. In addition, we depend in
part upon subcontractors to assemble major components and subsystems used in our
products in a timely and satisfactory manner. While we enter into long-term or
volume purchase agreements with a few of our suppliers, we cannot be sure that
materials, components, and subsystems will be available in the quantities we
require, if at all. We are dependent for some purposes on sole-source suppliers.
If any of them fails to meet our needs, we may not have readily available
alternatives. Our inability to fill our supply needs would jeopardize our
ability to satisfactorily and timely complete our obligations under government
and other contracts. This might result in reduced sales, termination of one or
more of these contracts and damage to our reputation and relationships with our
customers. All of these events could have a negative effect on our financial
condition.

Our dual class capital structure may depress the value of your Class B Common
Stock.

     We have two distinct classes of common stock - Class A Common Stock and
Class B Common Stock. With respect to all actions other than the election or
removal of directors, holders of Class A Common Stock and Class B Common Stock
have equal voting rights. With respect to the election or removal of directors
only, holders of Class A Common Stock have 80.1% of the total voting power.
Holders of Class B Common Stock have the remaining 19.9% of the voting power. If
you hold Class B Common Stock, or any securities convertible into or exercisable
for Class B Common Stock, the value of your securities may be depressed by the
disparity in voting power. Furthermore, while shares of Class B Common Stock
currently trade on the New York Stock Exchange, the Chicago Stock Exchange and
the Pacific Exchange, the listing policies of each of these exchanges with
respect to corporations with dual-class capitalizations may change in the
future, and in the future such policies may not allow for the continued listing
of our Class B Common Stock.

The unpredictability of our results may harm the trading price of our
securities, or contribute to volatility.

     Our operating results may vary significantly over time for a variety of
reasons, many of which are outside of our control, and any of which may harm our
business. The value of our securities may fluctuate as a result of
considerations that are difficult to forecast, such as:

 .  volume and timing of product orders received and delivered

                                      -11-
<PAGE>

 .  levels of product demand
 .  consumer and government spending patterns
 .  the timing of contract receipt and funding
 .  our ability and the ability of our key suppliers to respond to changes in
   customer orders
 .  timing of our new product introductions and the new product introductions of
   our competitors
 .  changes in the mix of our products
 .  cost and availability of components and subsystems
 .  price erosion
 .  adoption of new technologies and industry standards
 .  competitive factors, including pricing, availability and demand for
   competing products
 .  fluctuations in foreign currency exchange rates
 .  conditions in the capital markets and the availability of project financing
 .  regulatory developments and
 .  general economic conditions.

     During the period between September 1, 1999 and February 17, 2000, the
market price of our Class B Common Stock as quoted on the New York Stock
Exchange, the Chicago Stock Exchange and the Pacific Exchange has ranged from a
low of $19.00 per share to a high of $68.875 per share. The market prices for
our other securities, including those that are exercisable for or convertible
into our Class B Common Stock, may also be volatile.

Because we have not specified a use of the proceeds of this offering, we have
complete discretion over how those proceeds will be spent and we may not
ultimately spend the money wisely.

     We may use the proceeds of this offering for investments, acquisitions,
efforts to increase market share, working capital, general corporate purposes
and other capital expenditures. The specific uses of the proceeds will be at our
complete discretion and the proceeds may be allocated from time to time based on
a variety of circumstances. There is no assurance we will spend the money wisely
or in a way that will improve the financial condition of Raytheon.

                             About this Prospectus

     This prospectus is part of a registration statement that we filed with the
Securities and Exchange Commission using a "shelf" registration process. Under
this shelf process, we may sell any combination of the securities described in
this prospectus in one or more offerings up to a total dollar amount of $3.0
billion or the equivalent denominated in foreign currencies. This prospectus
provides you with a general description of the securities we may offer. Each
time we sell securities, we will provide a prospectus supplement that will
contain specific information about the terms of that offering. This prospectus
does not contain all of the information included in the registration statement.
For a more complete understanding of the of the offering of the securities, you
should refer to the registration statement, including its exhibits. The
prospectus supplement may also add, update or change information contained in
this prospectus. You should read both this prospectus and any prospectus
supplement together with additional information under the heading "Where You Can
Find Information."

     You should rely only on the information contained in this prospectus. We
have not authorized anyone to provide you with information different from that
contained in this prospectus or incorporated by reference in this prospectus. We
are not making offers to sell the securities in any jurisdiction in which such
an offer or solicitation is not authorized or in which the person making such
offer or solicitation is not qualified to do so or to anyone to whom it is
unlawful to make such offer or solicitation.

     The information in this prospectus is accurate as of the date on the front
cover. You should not assume that the information contained in this prospectus
is accurate as of any other date.

                                      -12-
<PAGE>
                      Where You Can Find More Information

     We file annual, quarterly and special reports, proxy statements and other
information with the SEC. You may read and copy the registration statement and
any other document we file at the SEC's public reference section, 450 Fifth
Street, N.W., Room 1024, Washington, D.C. 20549, at the worldwide web site
(http://www.sec.gov) maintained by the SEC and at the SEC's regional offices
located at Seven World Trade Center, 13th Floor, New York, New York 10048 and
Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661.
Information regarding the operation of the public reference section can be
obtained by calling 1-800-SEC-0330. Our Class B common stock, $0.01 par value
per share, and Class A common stock, $0.01 par value per share, are listed on
the New York Stock Exchange, the Chicago Stock Exchange and the Pacific
Exchange, where reports, proxy statements and other information concerning
Raytheon Company can also be inspected. The offices of the NYSE are located at
20 Broad Street, New York, New York 10005.

     The SEC allows us to "incorporate by reference" the information we file
with them, which means that we can disclose important information to you by
referring you to those documents. These incorporated documents contain important
business and financial information about us that is not included in or delivered
with this prospectus. The information incorporated by reference is considered to
be part of this prospectus, and later information filed with the SEC will update
and supersede this information.

     We incorporate by reference into this prospectus:

 .    our Quarterly Reports on Form 10-Q for the fiscal quarters ended April 4,
     1999, as amended by Form 10-Q/A filed with the SEC on January 21, 2000,
     July 4, 1999, as amended by Form 10-Q/A filed with the SEC on January 21,
     2000, and October 3, 1999, as amended by Form 10-Q/A filed with the SEC on
     January 21, 2000;

 .    our Annual Report on Form 10-K for the fiscal year ended December 31, 1998,
     as amended by Form 10-K/A filed with the SEC on July 1, 1999, as further
     amended by Form 10-K/A filed with the SEC on January 21, 2000;

 .    our registration statement on Form 8-A dated December 11, 1997 and Form 8-
     A/A dated December 17, 1997; and

 .    any future filings made by us with the SEC under Section 13(a), 13(c), 14
     or 15(d) of the Securities Exchange Act of 1934 until we sell all of the
     securities.

     We will provide without charge to each person, including any beneficial
owner, to whom a prospectus is delivered, on written or oral request of that
person, a copy of any or all of the documents we are incorporating by reference
into this prospectus, other than exhibits to those documents unless such
exhibits are specifically incorporated by reference into those documents. Such
written requests should be addressed to:

                  Secretary, Raytheon Company
                  141 Spring Street
                  Lexington, Massachusetts 02421

     You may direct telephone requests to the Secretary of Raytheon Company at
(781) 862-6600.

                Disclosure Regarding Forward-Looking Statements

     This prospectus and the information we are incorporating by reference into
it contain "forward-looking statements" within the meaning of the Private
Securities Litigation Reform Act of 1995. All statements other than statements
of historical facts included in this prospectus and the information incorporated
by reference into this prospectus that we expect or anticipate will or may occur
in the future, including, without limitation, statements included in this
prospectus under "Raytheon Company" and located elsewhere in this prospectus
regarding our
                                      -13-
<PAGE>

financial position, business strategy and measures to implement that strategy,
including changes to operations, competitive strengths, goals, expansion and
growth of our business and operations, plans, references to future success and
other such matters are forward-looking statements. These statements are based on
assumptions and analyses made by us in light of our experience and our
perception of historical trends, current conditions and expected future
developments as well as other factors we believe are appropriate in the
circumstances. However, whether actual results and developments will conform
with our expectations and predictions is subject to a number of risks and
uncertainties, including without limitation the information discussed under the
caption "Risk Factors" in this prospectus as well as other factors which might
be described from time to time in our filings with the Securities and Exchange
Commission and additional factors which are beyond our control including the
preparedness of our critical suppliers to avoid Year 2000 related service and
delivery interruptions.

     Consequently, all of the forward-looking statements we make in this
prospectus and the information we are incorporating by reference into this
prospectus are qualified by these cautionary statements, and there can be no
assurance that the actual results or developments anticipated by us will be
realized or, even if substantially realized, that they will have the expected
consequences to or effects on us and our subsidiaries or our businesses or
operations. All subsequent forward-looking statements attributable to us or
persons acting on our behalf are expressly qualified in their entirety by any of
those factors described above and in the documents containing such forward-
looking statements. We do not assume any obligation to release publicly any
updates or revisions to any forward-looking statement.

                  Ratio of Earnings to Combined Fixed Charges
                         and Preferred Stock Dividends

     The following table sets forth Raytheon Company's consolidated ratio of
earnings to combined fixed charges and preferred stock dividends for the end of
the fiscal years 1999, 1998, 1997, 1996 and 1995:

<TABLE>
<CAPTION>
                        Fiscal Year Ended December 31,
         ----------------------------------------------------------------
             1999           1998           1997        1996      1995
         <S>                <C>            <C>         <C>       <C>
             2.0x           2.7x           2.7x        4.6x      6.0x
</TABLE>

     For purposes of computing the ratio of earnings to combined fixed charges
and preferred stock dividends:

 .    earnings consist of net earnings, taxes on income and fixed charges, less
     capitalized interest; and

 .    fixed charges consist of interest expense, amortization of debt discount
     and issuance expense, the portion of rents representative of an interest
     factor and capitalized interest.

     The ratio of earnings to combined fixed charges has declined due to higher
interest expense resulting from increased borrowings to finance our merger with
the defense business of Hughes Electronics and our acquisition of the defense
assets of Texas Instruments Incorporated.

                                Use of Proceeds

     Unless the applicable prospectus supplement states otherwise, we will use
the net proceeds from the sale of the securities for working capital, capital
expenditures, acquisitions and other general corporate purposes. Until we use
the net proceeds in that manner, we may temporarily use them to make short-term
investments or reduce short-term borrowings.

                                      -14-
<PAGE>

                         Description of Our Securities

     We may offer under this prospectus one or more of the following categories
of our securities:

     .  unsecured senior debt securities

     .  unsecured subordinated debt securities

     .  warrants to purchase senior or subordinated debt securities

     .  shares of preferred stock, in one or more series

     .  warrants to purchase shares of preferred stock

     .  shares of Class B common stock

     .  warrants to purchase shares of Class B common stock

     The terms of any specific offering of our securities, including the terms
of any units of a combination of our securities, will be described in a
prospectus supplement relating to that offering.

                      Description of Our Debt Securities

     This section describes the general terms and provisions of the debt
securities that we may offer. The applicable prospectus supplement will describe
the specific terms of the debt securities offered through that prospectus
supplement as well as any general terms described in this section that will not
apply to those debt securities.

     Our unsecured senior debt securities will be issued under an indenture,
dated as of July 3, 1995, between Raytheon Company and The Bank of New York, as
trustee, or another indenture or indentures to be entered into by Raytheon
Company and that trustee or another trustee. The unsecured subordinated debt
securities will be issued under a second Indenture, dated as of July 3, 1995,
also between Raytheon Company and The Bank of New York, as trustee or another
indenture to be entered into by Raytheon Company and that trustee or another
trustee.

     Copies of each of the July 3, 1995 indentures have been filed with the SEC
as exhibits to the registration statement of which this prospectus are a part,
and are incorporated by reference into this prospectus. If we elect to issue
securities under another indenture, we will file a copy of that indenture with
the SEC. You should refer to the applicable indenture for more specific
information. In addition, you should consult the applicable prospectus
supplement for particular terms of our debt securities.

     Our existing indentures do not limit the amount of debt securities that we
may issue, and permit us to issue securities from time to time in one or more
series. The debt securities will be unsecured obligations of Raytheon Company.

     Generally, we will pay the principal of, premium, if any, and interest on
our debt securities either at an office or agency that we maintain for that
purpose or, if we elect, we may pay interest by mailing a check to your address
as it appears on our register. We will issue our debt securities only in fully
registered form without coupons, generally in denominations of $1,000 or
integral multiples of $1,000. We will not apply a service charge for a transfer
or exchange of our debt securities, but we may require that you pay the amount
of any applicable tax or other governmental charge.

                                      -15-
<PAGE>
     The applicable prospectus supplement will describe the following terms of
any series of debt securities that we may offer:

 .    the title of the debt securities;

 .    whether they are senior debt securities or subordinated debt securities;

 .    any limit on the aggregate principal amount of the debt securities offered
     through that prospectus supplement;

 .    the identity of the person to whom we will pay interest if it is anybody
     other than the noteholder;

 .    when the principal of the debt securities will mature;

 .    the interest rate, which may be fixed or variable, or its method of
     calculation;

 .    when interest will be payable, as well as the record date for determining
     who we will pay interest to;

 .    where the principal of, premium, if any, and interest on the debt
     securities will be paid;

 .    any mandatory or optional sinking funds or similar arrangements;

 .    when the debt securities may be redeemed if they are redeemable, as well as
     the redemption prices, and a description of the terms of redemption;

 .    whether we have any obligation to redeem or repurchase the debt securities
     at your option;

 .    the denominations of the debt securities, if other than $1,000 or an
     integral multiple of $1,000;

 .    the amount that we will pay you if the maturity of the debt securities is
     accelerated if other than their principal amount;

 .    the currency in which we will make payments to you and, if a foreign
     currency, the manner of conversion from United States dollars;

 .    any index we may use to determine the amount of payment of principal of,
     premium, if any, and interest on the debt securities;

 .    if the debt securities will be issued only in the form of a global note,
     the name of the depositary or its nominee and the circumstances under which
     the global note may be transferred or exchanged to someone other than the
     depositary or its nominee;

 .    the applicability of the defeasance and covenant defeasance provisions in
     the applicable indenture;

 .    whether the debt securities are convertible into any other securities and
     the terms and conditions of convertibility;

 .    any additions or changes to events of default and, in the case of
     subordinated debt securities, any additional events of default that would
     result in acceleration of their maturity; and

 .    any other terms of the debt securities.

     We may issue our debt securities at an original issue discount, bearing no
interest or bearing interest at a rate that, at the time of issuance, is below
market rate, to be sold at a substantial discount below their stated principal
amount. Generally speaking, if our debt securities are issued at an original
issue discount and there is an event of default or acceleration of their
maturity, holders will receive an amount less than their principal amount. Tax
and other special considerations applicable to original issue discount debt will
be described in the prospectus supplement in which we offer those debt
securities.

                                      -16-
<PAGE>
Subordination of Subordinated Debt Securities

     Generally, the payment of principal of, premium, if any, and interest on
our unsecured subordinated debt securities will be subordinated in right of
payment to the prior payment in full of our senior indebtedness. If we
distribute our assets to creditors upon liquidation, dissolution,
reorganization, insolvency, bankruptcy or under similar circumstances, holders
of our senior debt will be entitled to be paid in full before any payments will
be made on our subordinated debt securities. In addition, if the maturity of our
subordinated debt securities is accelerated, holders of our senior debt will be
entitled to be paid in full before any payments will be made on our subordinated
debt securities. Moreover, while there is an event of default with respect to
our senior debt that would permit our senior debt to be accelerated, and while
we are in default in our payment obligations to holders of senior debt, we
cannot make payments to our subordinated debt holders.

     If we were to become insolvent, you may not be paid with respect to our
subordinated securities until our senior debt and third party creditors are paid
in full.

     The indenture for our unsecured subordinated debt securities will not place
any limits on the amount of other indebtedness, including senior debt, that we
may issue.

     The indenture for our unsecured subordinated debt securities defines
"senior indebtedness" to include the principal of, premium, if any, and interest
on:

(1)  all of our indebtedness for money borrowed, other than our subordinated
     debt securities, and any other indebtedness represented by a note, bond,
     debenture or other similar evidence of indebtedness, including indebtedness
     of others that we guarantee, in each case whether outstanding on the date
     of execution of the subordinated securities indenture or thereafter
     created, incurred or assumed; and

(2)  any amendments, renewals, extensions, modifications and refundings of any
     such indebtedness, unless in any case in the instrument creating or
     evidencing any such indebtedness or pursuant to which it is outstanding it
     is provided that such indebtedness is not superior in right of payment to
     our subordinated debt securities.

     In addition, for purposes of the definition of "senior indebtedness",
"indebtedness for money borrowed" includes:

(1)  any obligation of, or any obligation guaranteed by, Raytheon Company for
     the repayment of borrowed money, whether or not evidenced by bonds,
     debentures, notes or other written instruments,

(2)  any deferred payment obligation of, or any such obligation guaranteed by,
     Raytheon Company for the payment of the purchase price of property or
     assets evidenced by a note or similar instrument, and

(3)  any obligation of, or any such obligation guaranteed by, Raytheon Company
     for the payment of rent or other amounts under a lease of property or
     assets if such obligation is required to be classified and accounted for as
     a capitalized lease on our balance sheet under generally accepted
     accounting principles.

Events of Default

     Generally speaking, any of the following events will constitute an event of
default under the indentures:

 .    failure to pay interest on our debt securities for thirty days past the
     applicable due date, even if we are prohibited from paying interest on our
     debt securities because they are subordinated;

 .    failure to pay principal of, or premium, if any, on our debt securities
     when due, even if we are prohibited from making such payments on our debt
     securities because they are subordinated;

                                      -17-
<PAGE>
 .    failure to make any sinking fund payment when due, even if we are
     prohibited from making such payments with respect to subordinated
     securities;

 .    failure to perform any other covenant or agreement in the applicable
     indenture, other than a covenant included in the indenture solely for the
     benefit of a different type of our debt securities, which continues for 60
     days after written notice as provided in the indenture;

 .    bankruptcy, insolvency or reorganization; and

 .    any other event of default provided with respect to debt securities of that
     series.

     You will be notified of an event of default with respect to a series of our
debt securities by the trustee.

     If there is an event of default with respect to a series of our senior debt
securities, which continues for the requisite amount of time, either the trustee
or holders of at least 25% of the aggregate principal amount of that series may
declare the principal amount of all of the senior debt securities of that series
to be due and payable immediately. If the securities were issued at an original
issue discount, less than the stated principal amount may become payable.

     Payment of the principal of our subordinated debt securities may be
accelerated only in the case of our bankruptcy, insolvency or reorganization.
Neither you nor the trustee will be able to accelerate the payment of interest
or principal with respect to our subordinated debt securities for any other
reason.

     In some cases, after a declaration of acceleration has been made, but
before a judgment or decree has been obtained, holders of a majority in
aggregate principal amount of the series that is in default may rescind the
acceleration.

     The trustee will be required to act with a high standard of care. However,
the trustee will not be obligated to exercise any of its rights or powers under
the indentures at your request unless you provide the trustee reasonable
security or indemnity. Generally, but with exceptions, holders of a majority in
aggregate principal amount of any series of our outstanding debt securities will
have the right to choose the time, method and place of any proceeding for any
remedy available to the trustee or any exercise of power by the trustee with
respect to debt securities of that series.

     You may institute a suit against us for enforcement of your rights to
receive payment of the principal of, premium, if any, on or interest on our debt
securities after the due dates. However, you will not be able to institute any
other proceedings under the applicable indenture, including for any remedy,
unless the following conditions are satisfied:

(1)  You give the trustee written notice of a continuing event of default with
     respect to a series of our debt securities that you hold;

(2)  holders of at least 25% of the aggregate principal amount of that series
     make a request, in writing, and offer reasonable indemnity, to the trustee
     for the trustee to institute the requested proceeding;

(3)  the trustee does not receive direction contrary to your request within 60
     days following your written notice from holders of a majority in aggregate
     principal amount of that series; and

(4)  the trustee does not institute the proceeding you request within 60 days
     following your written notice.

     Every year we are required to deliver to the trustee a statement as to
performance of our obligations under the indentures and as to any defaults.

     A default in the payment of any of our debt securities, where the aggregate
principal amount of that series of debt securities exceeds $50 million, or a
default with respect to our debt securities that causes them to be

                                      -18-
<PAGE>
accelerated, will give rise to a cross-default under our senior credit
facilities. In some circumstances, payment defaults on our debt securities may
also give rise to cross-defaults of our guarantees of the indebtedness of our
subsidiaries.

Defeasance and Covenant Defeasance

     Any series of our debt securities may be subject to the defeasance and
discharge provisions of the applicable indenture. If those provisions are
applicable, we may elect either:

 .    defeasance - which will permit us to defease and be discharged from,
     subject to limitations, all of our obligations with respect to those debt
     securities; or

 .    covenant defeasance - which will permit us to be released from our
     obligations to comply with covenants relating to those debt securities as
     described in the applicable prospectus supplement, which may include
     obligations concerning subordination of our subordinated debt securities.

     To invoke defeasance or covenant defeasance with respect to any series of
our debt securities, we must irrevocably deposit with the trustee, in trust, an
amount in funds or U.S. government obligations which, through the payment of
principal and interest in accordance with their terms, will provide money in an
amount sufficient to pay, when due, the principal of, premium, if any, on and
interest on those debt securities and any mandatory sinking fund or similar
payments on those debt securities.

     We cannot defease our obligations to register the transfer or exchange of
our debt securities, to replace our debt securities that have been stolen, lost
or mutilated, to maintain paying agencies, or to hold funds for payment in
trust. We may not defease our obligations if there is a continuing event of
default on securities issued under the applicable indenture, or if depositing
amounts into trust would cause the trustee to have conflicting interests with
respect to other of our securities. In addition, we would be required to deliver
a legal opinion to the trustee to the effect that you will not recognize
additional income, gain or loss for federal income tax purposes as a result of
the defeasance or covenant defeasance.

     If we effect covenant defeasance with respect to any of our debt securities
and then those debt securities are declared due and payable because of an event
of default, other than an event of default relating to any covenant from which
we have been released through covenant defeasance, the amount of money or U.S.
government obligations on deposit with the trustee may not be sufficient to pay
all amounts due on the debt securities at the time of acceleration. However, we
would remain liable with respect to any shortfall.

Modification and Waiver

     Modifications and amendments of our current indentures may be made only
with the consent of holders of at least a majority in aggregate principal amount
of all of our outstanding debt securities affected, voting as a single class.
Generally, the consent of all of the holders of our debt securities that are
affected is required for any of the following:

 .    to change the stated maturity of the principal, or any installment of
     interest or premium, if any;

 .    to reduce the principal amount, the premium, if any, or the interest, or
     the amount payable upon acceleration or maturity in the case of debt
     securities issued at an original issue discount;

 .    to change the place of payment, or the currency in which payments are made;

 .    to impair your right to institute suit to enforce any payment at or
     following stated maturity or following a redemption date;

 .    to modify the subordination provisions of our subordinated debt securities
     in a manner adverse to holders; or

 .    to reduce the percentage of the principal amount of our outstanding debt
     securities required for modification to or amendment of the either
     indenture, or for waiver of our compliance with indenture provisions or
     defaults.

                                      -19-
<PAGE>

     Holders of a majority in aggregate principal amount of either our senior
debt securities or our subordinated debt securities may waive any past default
under the applicable indenture, except for a default in the payment of
principal, premium, if any, on, or interest on our debt securities and except
for our compliance with specified covenants.

Covenants

     Our current indentures contain covenants regarding, among other things:

 .    a limitation on liens other than specified types of liens;

 .    a limitation on sale and leaseback transactions, unless the lien on any
     property subject to the sale and leaseback transaction is permitted under
     the indentures or the proceeds of the sale and leaseback transaction are
     used to retire specified types of debt; and

 .    restrictions on our ability to engage in consolidations, mergers or
     transfers of substantially all of our assets unless the surviving or
     acquiring corporation assumes the outstanding debt of Raytheon Company
     issued under such indentures.

You should be aware that we are not prohibited from engaging in highly leveraged
transactions,  other than as may conflict with those  covenants.  Moreover,  any
series of our debt  securities  may provide that these  covenants may be removed
with respect to that series.

Consolidation, Merger and Sale of Assets

     Our current indentures prohibit us from consolidating with or merging into
another business, or transferring or leasing substantially all of our assets,
unless the business is a domestic company and it expressly assumes our
obligations with respect to our debt securities by executing a supplemental
indenture.

Conversion or Exchange Rights

     If any series of debt securities are convertible or exchangeable, the
applicable prospectus supplement will specify:

 .    the type of securities into which it may be converted or exchanged;

 .    the conversion price or exchange ratio, or its method of calculation;

 .    whether conversion or exchange is mandatory or at your election; and

 .    how the conversion price or exchange ratio may be adjusted if our debt
     securities are redeemed.

Global Securities

     Our debt securities may be issued in the form of one or more global
securities that will be deposited with a depositary or its nominee identified in
the applicable prospectus supplement. If so, each global security will be issued
in the denomination of the aggregate principal amount of securities that it
represents. Unless and until it is exchanged in whole or in part for debt
securities that are in definitive registered form, a global security may not be
transferred or exchanged except as a whole by the depositary to its nominee. The
applicable prospectus supplement will describe this concept more fully.

     The specific material terms of the depositary arrangement with respect to
any portion of a series of our debt securities that will be represented by a
global security will be described in the applicable prospectus supplement. We
anticipate that the following provisions will apply to all depositary
arrangements.

                                      -20-
<PAGE>
     Upon the issuance of any global security, and its deposit with or on behalf
of the depositary, the depositary will credit, on its book-entry registration
and transfer system, the principal amounts of our debt securities represented by
the global security to the accounts of participating institutions that have
accounts with the depositary or its nominee. The underwriters or agents engaging
in the distribution of our debt securities, or Raytheon Company if we are
offering and selling our debt securities directly, will designate the accounts
to be credited. Ownership of beneficial interests in a global security will be
limited to participating institutions or their clients. The depositary or its
nominee will keep records of the ownership and transfer of beneficial interests
in a global security by participating institutions. Participating institutions
will keep records of the ownership and transfer of beneficial interests by their
clients. The laws of some jurisdictions may require that purchasers of our
securities receive physical certificates, which may impair your ability to
transfer your beneficial interests in global securities.

     While the depositary or its nominee is the registered owner of a global
security, the depositary or its nominee will be considered the sole owner of all
of our debt securities represented by the global security for all purposes under
the indentures. Generally, if you own beneficial interests in a global security,
you will not be entitled to have our debt securities registered in your own
name, and you will not be entitled to receive a certificate representing your
ownership. Accordingly, if you own a beneficial interest in a global security,
you must rely on the depositary and, if applicable, the participating
institution of which you are a client to exercise the rights of a holder under
the applicable indenture.

     The depositary may grant proxies and otherwise authorize participating
institutions to take any action that a holder is entitled to take under the
indentures. We understand that, according to existing industry practices, if we
request any action of holders, or any owner of a beneficial interest in a global
security wishes to give any notice or take any action, the depositary would
authorize the participating institutions to give the notice or take the action,
and the participating institutions would in turn authorize their clients to give
the notice or take the action.

     Generally, we will make payments on our debt securities represented by a
global security directly to the depositary. It is our understanding that the
depositary will then credit the accounts of participating institutions, which
will then distribute funds to their clients. We also expect that payments by
participating institutions to their clients will be governed by standing
instructions and customary practices, as is now the case with securities held
for the accounts of clients registered in "street names," and will be the
responsibility of the participating institutions. Neither we nor the trustee,
nor our respective agents, will have any responsibility, or bear any liability,
for any aspects of the records relating to or payments made on account of
beneficial interests in a global security, or for maintaining, supervising or
reviewing records relating to beneficial interests.

     Generally, a global security may be exchanged for certificated debt
securities only in the following instances:

(1)  the depositary notifies us that it is unwilling or unable to continue as
     depositary, or it ceases to be a registered clearing agency, if required to
     be registered by law, and a successor is not appointed within 90 days;

(2)  we determine in our sole discretion that we will permit global securities
     to be exchanged for certificated debt securities; or

(3)  there is a continuing event of default under the indenture governing the
     debt securities held in global form.

     The following is based on information furnished to us:

          Unless otherwise specified in the applicable prospectus supplement,
the Depositary Trust Company will act as depositary for securities issued in the
form of global securities. Global securities will be issued only as fully-
registered securities registered in the name of Cede & Co., which is DTC's
nominee. One or more fully-registered global securities will be issued for these
securities representing in the aggregate the total number of these securities,
and will be deposited with or on behalf of DTC.

                                      -21-
<PAGE>
         DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York Banking
Law, a member of the Federal Reserve System, a "clearing corporation" within the
meaning of the New York Uniform Commercial Code, and a "clearing agency"
registered pursuant to the provisions of Section 17A of the Securities Exchange
Act of 1934. DTC holds securities that its participants deposit with it. DTC
also facilitates the settlement among its participants of securities
transactions, such as transfers and pledges, in deposited securities through
electronic computerized book-entry changes in participants' accounts, thereby
eliminating the need for physical movement of securities certificates. Direct
participants include securities brokers and dealers, banks, trust companies,
clearing corporations and other organizations. DTC is owned by a number of its
direct participants and by the New York Stock Exchange, the American Stock
Exchange and the National Association of Securities Dealers. Access to the DTC
system is also available to others, known as indirect participants, such as
securities brokers and dealers, banks and trust companies that clear through or
maintain custodial relationships with direct participants, either directly or
indirectly. The rules applicable to DTC and its participants are on file with
the Securities and Exchange Commission.

         Purchases of securities within the DTC system must be made by or
through direct participants, which will receive a credit for the securities on
DTC's records. The ownership interest of each actual purchaser of each security,
commonly referred to as the beneficial owner, is in turn to be recorded on the
direct and indirect participants' records. Beneficial owners will not receive
written confirmation from DTC of their purchases, but beneficial owners are
expected to receive written confirmations providing details of the transactions,
as well as periodic statements of their holdings, from the direct or indirect
participants through which the beneficial owners purchased securities. Transfers
of ownership interests in securities issued in the form of global securities are
accomplished by entries made on the books of participants acting on behalf of
beneficial owners. Beneficial owners will not receive certificates representing
their ownership interests in these securities, except if use of the book-entry
system for such securities is discontinued.

         DTC has no knowledge of the actual beneficial owners of the securities
issued in the form of global securities. DTC's records reflect only the identity
of the direct participants to whose accounts such securities are credited, which
may or may not be the beneficial owners. The participants will remain
responsible for keeping account of their holdings on behalf of their customers.

         Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
participants and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements as
may be in effect from time to time.

         Any redemption notices need to be sent to DTC. If less than all of the
securities of a series or class are being redeemed, DTC's practice is to
determine by lot the amount to be redeemed from each participant.

         Although voting with respect to securities issued in the form of global
securities is limited to the holders of record, when a vote is required, neither
DTC nor Cede & Co. will itself consent or vote with respect to such securities.
Under its usual procedures, DTC would mail an omnibus proxy to the issuer of the
securities as soon as possible after the record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants to whose
accounts such securities are credited on the record date, identified in a
listing attached to the omnibus proxy.

         Payments in respect of securities issued in the form of global
securities will be made by the issuer of such securities to DTC. DTC's practice
is to credit direct participants' accounts on the relevant payment date in
accordance with their respective holdings shown on DTC's records unless DTC has
reason to believe that it will not receive payments on such payment date.
Payments by participants to beneficial owners will be governed by standing
instructions and customary practices and will be the responsibility of such
participant and not of DTC or Raytheon Company, subject to any statutory or
regulatory requirements as may be in effect from time to time. Payments to DTC
are the responsibility of the issuer of the applicable securities, disbursement
of such payments to direct participants is the responsibility of DTC, and
disbursements of such payments to the beneficial owners is the responsibility of
direct and indirect participants.

                                      -22-
<PAGE>

         DTC may discontinue providing its services as depositary with respect
to any securities at any time by giving reasonable notice to the issuer of such
securities. If a successor depositary is not obtained, individual security
certificates representing such securities are required to be printed and
delivered. We, at our option, may decide to discontinue use of the system of
book-entry transfers through DTC or a successor depositary.

         The information in this section concerning DTC and DTC's book-entry
system has been obtained from sources that we believe to be accurate, but we
assume no responsibility for its accuracy. We have no responsibility for the
performance by DTC or its participants of their obligations as described in this
prospectus or under the rules and procedures governing their operations.


Our Debt Trustee

     The current trustee for our debt securities is The Bank of New York, which
performs services for us in the ordinary course of business. We may engage
additional or substitute trustees with respect to particular series of our debt
securities.


                      Description of Our Preferred Stock

     This section describes the general terms and provisions of our preferred
stock. The applicable prospectus supplement will describe the specific terms of
the shares of preferred stock offered through that prospectus supplement as well
as any general terms described in this section that will not apply to those
shares of preferred stock. We will file a copy of the certificate of designation
that contains the terms of each new series of preferred stock with the SEC each
time we issue a new series of preferred stock, and these certificates of
designation will be incorporated by reference into the registration statement of
which this prospectus is a part. Each certificate of designation will establish
the number of shares included in a designated series, and fix the designation,
powers, privileges, preferences and rights of the shares of each series as well
as any applicable qualifications, limitations or restrictions. You should refer
to the applicable certificate of designation as well as our restated certificate
of incorporation before deciding to buy shares of our preferred stock as
described in the applicable prospectus supplement.

     Our authorized capital stock consists of 1,650,000,000 shares of stock,
including:

 .    1,450,000,000 shares of common stock, $0.01 par value per share, comprised
     of:

     .    450,000,000 shares of Class A common stock, and

     .    1,000,000,000 shares of Class B common stock.

 .    200,000,000 shares of preferred stock, $0.01 par value per share,
     including:

     .    4,000,000 shares of Series A Junior Participating preferred stock,
          $0.01 par value per share.

Our Board has been authorized, subject to limitations provided in our charter,
to provide for the issuance of shares of our preferred stock in multiple series.
No shares of our preferred stock are currently outstanding.

     With respect to each series of our preferred stock, our Board of Directors
has the authority to fix the following terms:

 .    the designation of the series;

 .    the number of shares within the series;

                                      -23-
<PAGE>
 .    whether dividends are cumulative and, if cumulative, the dates from which
     dividends are cumulative;

 .    the rate of any dividends, any conditions upon which dividends are payable,
     and the dates of payment of dividends;

 .    whether the shares are redeemable, the redemption price and the terms of
     redemption;

 .    the amount payable to you for each share you own if Raytheon Company is
     dissolved or liquidated;

 .    whether the shares are convertible or exchangeable, the price or rate of
     exchange, and the applicable terms and conditions;

 .    any restrictions on issuance of shares in the same series or any other
     series; and

 .    your voting rights for the shares you own.

     You will have no preemptive rights with respect to your shares. In
addition, your rights with respect to your shares of preferred stock will be
subordinate to the rights of our general creditors. If we receive the
appropriate payment, shares of our preferred stock that we issue will be fully
paid and nonassessable.

     We currently plan to retain State Street Bank and Trust Company of Boston,
Massachusetts as the registrar and transfer agent of any series of our preferred
stock.

Hughes Separation Agreement

     On December 17, 1997, Raytheon Company acquired, through a merger, the
defense electronics business of Hughes Electronics Corporation. As part of the
merger, we agreed under the Hughes Spin-Off Separation Agreement not to take
specified actions unless General Motors Corporation determines in good faith
that such actions would not jeopardize the tax-free status of the spin-off of
the defense electronics business of Hughes Electronics Corporation and its
merger with Raytheon Company.

     Many of the covenants restricting our actions expired on December 18, 1999
and are no longer in effect. However, we remain subject to covenants that
prohibit us from:

 .    making amendments to our restated certificate of incorporation or amended
     and restated by-laws that would affect the composition or size of our board
     of directors, the manner in which the board is elected, and the duties and
     responsibilities of the board. This covenant expires on December 18, 2000.

 .    proposing a plan of recapitalization or amendment to our restated
     certificate of incorporation that would (1) convert shares of our Class A
     common stock into shares of Class B common stock or vice versa, or (2)
     change the absolute or relative voting rights of any class of our common
     stock from the rights in existence on December 17, 1997. The covenant does
     not have an expiration date.

     A copy of the Hughes Spin-Off Separation Agreement has been filed with the
SEC as an exhibit to the registration statement of which this prospectus is a
part.
                    Description of Our Class B Common Stock

     We are authorized to issue up to 1,450,000,000 shares of common stock,
consisting of 450,000,000 shares of our Class A common stock, $0.01 par value
per share, and 1,000,000,000 shares of our Class B common stock, $0.01 par value
per share.

     This section describes the general terms of our Class B common stock. For
more detailed information, you should refer to our restated certificate of
incorporation and our amended and restated by-laws, copies of which have been
filed with the SEC. These documents are also incorporated by reference into this
prospectus.

                                      -24-
<PAGE>

     In addition, we entered into an agreement with General Motors Corporation
that limits our ability to take actions that affect our common stock. Please
refer the description of the Hughes Spin-Off Separation Agreement in the section
of this prospectus captioned "Description of Our Preferred Stock".

     Generally, holders of our Class A common stock and Class B common stock are
entitled to one vote per share and the approval of corporate actions requires
the approval of both classes, voting separately, as well as approval of the
holders of any series of our preferred stock that may be entitled to vote for
the action. The election or removal of our directors is subject to separate
rules.

     For the election or removal of our directors, our common stockholders vote
as a single class, and are entitled to vote as follows:

Class B:  Holders of our Class B common stock will be entitled to one vote per
          share, and the voting power of the entire class will be equal to 19.9%
          of the total voting power of all classes of our common stock.

Class A:  Holders of our Class A common stock will be entitled to the number of
          votes per share as will cause the Class A common stock to have 80.1%
          of the total voting power of all classes of our common stock.

     Our common stock will be the only type of our capital stock entitled to
vote in the election and removal of directors and other matters presented to our
stockholders from time to time, unless we issue voting preferred stock or our
charter or the law require otherwise.

     Our common stockholders will be entitled to receive dividends and
distributions declared by our Board of Directors, to the extent permitted by
outstanding shares of preferred stock and by our charter. If a dividend is
declared, it will be distributed pro rata to our Class A and Class B
stockholders, unless it is a dividend in kind. We are permitted to distribute
Class A common stock to Class A stockholders and Class B common stock to Class B
stockholders but only if the ratio of shares outstanding of the two classes
remains unchanged. In addition, in the case of any stock split, subdivision,
combination or reclassification of either class, the other class will be
adjusted accordingly so that the ratio of shares outstanding of the two classes
remains unchanged.

     If Raytheon Company is liquidated or dissolved, our common stockholders
will be entitled to receive our assets and funds available for distribution to
common stockholders in proportion to the number of shares of either class they
hold. Our common stockholders may not receive any assets or funds until our
creditors have been paid in full and the preferential or participating rights of
our preferred stockholders have been satisfied. If we participate in a corporate
merger, consolidation, purchase or acquisition of property or stock, or other
reorganization, any payments or shares of stock allocated to our common
stockholders will be distributed pro rata to holders of our Class A and Class B
common stock on a per share basis. If we redeem, repurchase or otherwise acquire
for payment any shares of our common stock, we will treat each share of Class A
common stock and Class B common stock identically.

     You will not have any preemptive, subscription or conversion rights with
respect to shares of our common stock that you own. We may issue additional
shares of our common stock, if authorized by our Board of Directors, without
your approval - unless required by a stock exchange on which our securities are
traded. If we receive the appropriate payment, shares of our common stock that
we issue will be fully paid and nonassessable.

     Other than as described above, the rights of our Class A common
stockholders and Class B common stockholders are the same, and we will not
discriminate with respect to one class over the other.

Provisions of our Restated Certificate of Incorporation and Amended and Restated
By-Laws

                                      -25-
<PAGE>
     Advance Notice of Nominations. Our by-laws contain provisions requiring
that you deliver advance notice of any business that you intend to raise at an
annual meeting of stockholders, and providing for procedures to be followed if
you wish to nominate a person to be elected as a director. To be timely, you
must give written notice to our Secretary within the thirty day period beginning
on the 120/th/ day prior to the first anniversary of the preceding year's annual
meeting. If the date of the next annual meeting is more than 30 days before, or
more than 60 days after, the first anniversary of the preceding year's annual
meeting, you must deliver notice to our Secretary within the period beginning on
the 120/th/ day prior to the meeting and ending thirty days later, or, if later,
the 10/th/ day after our public announcement of the meeting date. In addition,
if we plan to increase the size of our Board of Directors, and we do not
announce all of the nominees for election or the fact that the size of our Board
will be increased at least 100 days before the first anniversary of the
preceding year's annual meeting, you will have ten days following the date of
our public announcement to give notice of your nomination to our Secretary.

     The notice must provide information about you and the business to be
brought before the meeting. You should review our by-laws for more information.
For our 2000 annual stockholders meeting, the first anniversary of the previous
year's meeting will be April 28, 2000.

     Classification of Directors. Our charter provides that, except as required
by any series of preferred stock or specific provisions of the charter, the
number of our directors, which must be at least equal to three, may be fixed
from time to time by a resolution adopted by a majority of our Board. Our Board
is classified into three classes, as nearly equal in size as possible. Each
class holds office until the third succeeding anniversary of the annual
stockholders' meeting electing that class, except that the terms of the initial
three classes were set to expire in 1998, 1999 and 2000, respectively. A
director may be removed only for cause by the vote of our common stockholders,
voting together as a single class in accordance with their respective
percentages of total voting power, and subject to the rights of any series of
preferred stock outstanding.

     No Action by Written Consent; Special Meeting. Our charter provides that
stockholders may not act by written consent in lieu of a special meeting.
Special meetings of the stockholders may only be called by our Chairman of the
Board or by our Board of Directors pursuant to a resolution that indicates the
purpose of the meeting, which is approved by a majority of our directors,
assuming, for this purpose, that there were no vacancies. No business other than
that stated in the notice may be transacted at any special meeting of
stockholders.

     According to our by-laws, if we call a special meeting to elect directors
to the Board of Directors, you may nominate individuals for election if you
deliver notice to our Secretary during the period beginning on the 120/th/ day
before the special meeting and ending thirty days later, or, if later, the
10/th/ day after our public announcement of the meeting.

     Limitation on Directors' Liability. Our charter provides, as authorized by
law, that our directors will not be personally liable to Raytheon Company or our
stockholders for monetary damages for breach of fiduciary duty as a director,
except to the extent limited by the Delaware General Corporate Law. The effect
of this charter provision may be to reduce the likelihood of derivative
litigation against directors for breach of their duty of care, even though the
action, if successful, might otherwise have benefited Raytheon Company and our
stockholders.

Stockholder Rights Plan

     When Raytheon Company merged with the defense electronics business of
Hughes Electronics Corporation in 1997, the Board of Directors adopted a
stockholder rights plan. Each share of Class B common stock issued hereunder
will be issued together with one right under the stockholder rights plan. You
should refer to the Rights Agreement, dated as of December 15, 1997, by and
between Raytheon and State Street Bank and Trust Company, as rights agent, for a
more detailed description of the stockholder rights plan. A copy of the Rights
Agreement is filed as an exhibit to the registration statement of which this
prospectus is a part.

     The rights trade automatically with shares of our common stock and become
exercisable only under circumstances described below. The rights are designed to
protect our interests and the interests of our stockholders

                                      -26-
<PAGE>

against coercive takeover tactics. The purpose of the rights is to encourage
potential acquirers to negotiate with our Board of Directors before attempting a
takeover and to provide the Board of Directors with leverage in negotiating the
terms of any proposed takeover on behalf of all stockholders. The rights may
have anti-takeover effects. Subject to the terms of the Hughes Spin-Off
Separation Agreement, the rights should not, however, interfere with any merger
or other business combination that the Board of Directors approves.

     The rights do not become exercisable until triggering events occur. They
expire on December 15, 2007, but we may extend this date or redeem the rights
earlier. Before a right is exercised, the right does not confer any right to
vote or receive dividends. Before a triggering event occurs, each right will
entitle you to purchase from us one one-hundredth of a share of our Series A
Junior Participating preferred stock for $250, subject to adjustment. The rights
are triggered by either of the following occurrences:

 .    10 days after the public announcement that an individual or group - the
     "acquirer"- has acquired 15% or more of our Class A common stock, Class B
     common stock, or the total voting power in the election of our directors;
     or

 .    10 business days, or later if the Board of Directors elects, after the
     commencement or announcement by an individual or group - the "acquirer"- of
     an intention to make a tender offer or exchange offer that would result in
     the acquisition of 15% or more of our Class A common stock, Class B common
     stock, or the total voting power in the election of our directors.

     If the rights are triggered, each holder of a right other than the
acquirer, whose rights will automatically become void, will thereafter have the
right to purchase shares of Class B common stock at a 50% discount to market
price. If Raytheon Company is thereafter acquired in a merger or other business
combination, or 50% or more of our assets or earning power are sold, each holder
of a right will have the right to purchase shares of common stock of the
acquiring company at a 50% discount to market price. However the Board of
Directors will have the option, before the acquirer obtains 50% or more of our
outstanding shares of common stock, to exchange rights of holders, other than
the acquirer, for shares of our Series A Junior Participating preferred stock,
at a rate of 100 rights per share, subject to adjustment.

     Subject to the terms of the Hughes Spin-Off Separation Agreement, we may
redeem the rights at any time before they are triggered at a price of $0.01 per
right. Our Board of Directors may also designate the effective time of the
redemption as well as the applicable conditions. If we redeem your rights, you
will be entitled to receive $0.01 for each right you hold, but you will not have
any further entitlements with respect to these rights.

Section 203 of the Delaware General Corporation Law

     Section 203 of the Delaware General Corporation Law prohibits a defined set
of transactions between a Delaware corporation, such as Raytheon Company, and an
"interested stockholder." An interested stockholder is defined as a person who,
together with any affiliates or associates of such person, beneficially owns,
directly or indirectly, 15% or more of the outstanding voting shares of a
Delaware corporation. This provision may prohibit business combinations between
an interested stockholder and a corporation for a period of three years after
the date the interested stockholder becomes an interested stockholder. The term
"business combination" is broadly defined to include mergers, consolidations,
sales or other dispositions of assets having a total value in excess of 10% of
the consolidated assets of the corporation, and some other transactions that
would increase the interested stockholder's proportionate share ownership in the
corporation.

     This prohibition is effective unless:

         .     The business combination is approved by the corporation's board
               of directors prior to the time the interested stockholder becomes
               an interested stockholder;

         .     The interested stockholder acquired at least 85% of the voting
               stock of the corporation, other than stock held by directors who
               are also officers or by qualified employee stock plans, in the
               transaction in which it becomes an interested stockholder; or

                                      -27-
<PAGE>

     .    The business combination is approved by a majority of the board of
          directors and by the affirmative vote of 66 2/3% of the outstanding
          voting stock that is not owned by the interested stockholder.

     In general, the prohibitions do not apply to business combinations with
persons who were stockholders prior to the corporation becoming subject to
Section 203.

Stock Exchange Listing

     Both our Class A common stock and Class B common stock are listed on the
New York Stock Exchange, the Chicago Stock Exchange and the Pacific Exchange.
The trading symbols for our Class A common stock and Class B common stock on
these exchanges are "RTNa" and "RTNb", respectively.

Transfer Agent

     State Street Bank and Trust Company is the Transfer Agent for our common
stock and the Rights Agent for the rights.

                    Description of Our Securities Warrants

     This section describes the general terms and provisions of our securities
warrants. The applicable prospectus supplement will describe the specific terms
of the securities warrants offered through that prospectus supplement as well as
any general terms described in this section that will not apply to those
securities warrants.

     We may issue securities warrants for the purchase of our debt securities,
preferred stock, or Class B common stock. We may issue warrants independently or
together with other securities, and they may be attached to or separate from the
other securities. Each series of securities warrants will be issued under a
separate warrant agreement that we will enter into with State Street Bank and
Trust Company, or another bank or trust company, as warrant agent, as detailed
in the applicable prospectus supplement. The warrant agent will act solely as an
agent of Raytheon Company in connection with the securities warrants and will
not assume any obligation, or agency or trust relationship, with you. The forms
of securities warrant agreements, including the forms of warrant certificates,
are filed as exhibits to the registration statement of which this prospectus is
a part. You should refer to the provisions of the securities warrant agreements
for more specific information.

     The prospectus supplement relating to a particular issue of securities
warrants will describe the terms of those securities warrants, including, where
applicable:

 .    the exercise price for our debt securities, the amount of debt securities
     you will receive upon exercise, and a description of that series of debt
     securities;

 .    the exercise price for shares of our preferred stock, the number of shares
     of preferred stock you will receive upon exercise, and a description of
     that series of our preferred stock;

 .    the exercise price for shares of our Class B common stock and the number of
     shares of Class B common stock you will receive upon exercise;

 .    the expiration date;

 .    U.S. federal income tax consequences; and

 .    any other terms of the securities warrants.

     After your warrants expire they will become void. The prospectus supplement
will describe how you may exercise your securities warrants. You must exercise
warrants for our preferred stock or Class B common stock through payment in U.S.
dollars. All securities warrants will be issued in registered form. The
prospectus supplement may provide for the adjustment of the exercise price of
the securities warrants.

                                      -28-
<PAGE>

     Until you exercise your warrants to purchase our debt securities, preferred
stock, or Class B common stock, you will not have any rights as a holder of our
debt securities, preferred stock, or Class B common stock by virtue of your
ownership of warrants.

                             Plan of Distribution

     We may sell our securities domestically or abroad, through underwriters,
dealers or agents, or directly, or through any combination of those methods. The
applicable prospectus supplement will describe the terms of the offering that it
applies to, including the names of any underwriters, dealers or agents, the
purchase price for our securities, and the proceeds we expect to receive. It
will also include any delayed delivery arrangements, any underwriting discounts
and other items constituting underwriters' compensation, the initial public
offering price, any discounts or concessions allowed or re-allowed or paid to
dealers, and a list of any securities exchanges on which the securities offered
may be listed.

     If we use underwriters in any sale, our securities will be purchased by the
underwriters or dealers for their own account and may be resold from time to
time in one or more transactions, including negotiated transactions, at a fixed
public offering price or at varying prices determined at the time of sale. Our
securities may be offered to the public either through underwriting syndicates
represented by one or more managing underwriters or directly by one or more
firms acting as underwriters. The underwriters with respect to a particular
underwritten offering will be named in the applicable prospectus supplement
relating to that offering. If an underwriting syndicate is used, the managing
underwriter or underwriters will be disclosed on the cover of the applicable
prospectus supplement. Generally, the obligations of the underwriters or agents
to purchase the securities that we offer will be subject to conditions
precedent, and the underwriters will have to purchase all of the offered
securities if any are purchased. The initial public offering price and any
discounts or concessions allowed or re-allowed or paid to dealers may be changed
from time to time.

     If we use dealers to sell our securities, we will sell our securities to
the dealers as principals. The dealers may then resell our securities to the
public at varying prices that they determine at the time of resale. We will
disclose the names of the dealers and the terms of the transaction in the
applicable prospectus supplement.

     We may sell the securities through agents that we designate from time to
time at fixed prices that may be changed, or at varying prices determined at the
time of sale. We will name any agent involved in the offer or sale of our
securities and specify any commissions that we will pay them. Unless otherwise
specified in the applicable prospectus supplement, any agent will be acting on a
best efforts basis for the period of its appointment.

     Underwriters or agents may be paid by us or by purchasers of our securities
for whom they act as agents in the form of discounts, concessions or
commissions. Underwriters, agents and dealers participating in the distribution
of our securities may all be deemed to be underwriters, and any discounts or
commissions that they receive, as well as profit they receive on the resale of
our securities, may be deemed to be underwriting discounts or commissions under
the Securities Act of 1933.

     A prospectus supplement may indicate that we will authorize agents,
underwriters or dealers to solicit from specified types of institutions offers
to purchase our securities at the public offering price set forth in the
prospectus supplement pursuant to delayed delivery contracts permitting payment
and delivery on a specified future date. The prospectus supplement will describe
conditions of any delayed delivery contracts, as well as the commission we will
pay for solicitation of these contracts.

     Some or all of the securities that we offer though this prospectus may be
new issues of securities with no established trading market. Any underwriters to
whom we sell our securities for public offering and sale may make a market in
those securities, but they will not be obligated to and they may discontinue any
market making at any time without notice. Accordingly, we cannot assure you of
the liquidity of, or continued trading markets for, any securities that we
offer.

                                      -29-
<PAGE>

     In order to facilitate the offering of our securities, any underwriters or
agents involved in the offering may engage in transactions that stabilize,
maintain or otherwise affect the price of our securities, or other securities
that affect payments on our securities. Specifically, the underwriters or agents
may overallot in connection with the offering, creating a short position for
their own account. In addition, to cover overallotments or to stabilize the
price of our securities, or other securities that affect payments on our
securities, the underwriters or agents may bid for and purchase the securities
in the open market. In any offering of our securities through a syndicate of
underwriters, the underwriting syndicate may reclaim selling concessions allowed
to an underwriter or dealer for distributing our securities if the syndicate
repurchases previously distributed securities in transactions to cover syndicate
short positions, in stabilizing transactions or otherwise. Any of these
activities may stabilize or maintain the market price of our securities above
independent market levels. The underwriters or agents are not required to engage
in these activities, and may end any of these activities at any time.

     Agents, dealers and underwriters may be entitled to be indemnified by us
against specified civil liabilities, including liabilities under the Securities
Act of 1933, or to contribution with respect to payments that they may be
required to make.

     Any underwriters, dealers or agents that we use, as well as their
affiliates, may be customers of Raytheon Company, or may engage in transactions
with us or perform services for us in the ordinary course of business.

                                 Legal Matters

         Thomas D. Hyde, Esq., the Senior Vice President, General Counsel and
Secretary of Raytheon Company will pass upon the validity of our securities. As
of the date of this prospectus, Thomas D. Hyde, Esq. holds 14,714 shares of
Class B Common Stock and options to acquire an additional 205,018 shares of
Class B Common Stock.

                                    Experts

         Our consolidated balance sheets as of December 31, 1998 and 1997 and
the related statements of income, stockholders' equity and cash flows for each
of the three years in the period ended December 31, 1998 and the related
financial statement schedule, incorporated by reference in the registration
statement of which this prospectus is a part, have been incorporated into such
registration statement in reliance on the reports of PricewaterhouseCoopers LLP,
independent accountants, given on the authority of that firm as experts in
accounting and auditing.

                                      -30-
<PAGE>

================================================================================

No dealer, salesperson or other person is authorized to provide any information
or to represent anything not contained in this prospectus. You must not rely on
any unauthorized information or representations. This prospectus is an offer to
sell only the securities offered hereby, but only under circumstances and in
jurisdictions where it is lawful to do so. The information contained in this
prospectus is current only as of its date.


                             _____________________



                                $3,000,000,000



                                   Raytheon
                                    Company



                                Debt Securities
                                Preferred Stock
                             Class B Common Stock
                                   Warrants



                             _____________________
                                  Prospectus
                             _____________________


                          _____________________, 2000

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

                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

         The estimated expenses in connection with the issuance and distribution
of the securities being registered, other than underwriting compensation, are:

SEC Registration Fee                         $   834,000
Legal Fees and Expenses                      $   100,000
Accounting Fees and Expenses                 $     0,000
Trustee's Fees and Expenses                  $    20,000
Rating Agency Fees                           $   160,000
Blue Sky Fees and Expenses                   $     2,000
Printing and Engraving Fees                  $    90,000
Miscellaneous                                $    14,000
                                             -----------
                                             $ 1,250,000

Item 15. Indemnification of Directors and Officers.

Delaware General Corporation Law

         Under Section 145 of the Delaware General Corporation Law (the "DGCL"),
Raytheon Company is empowered to indemnify its directors and officers in the
circumstances therein provided. Certain portions of Section 145 are summarized
below:

         Section 145(a) of the DGCL provides that a corporation may indemnify
any person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the corporation) by reason of the fact that such person is or was a
director, officer, employee or agent of the corporation, or is or was serving at
the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expenses (including attorneys' fees), judgments, fines and amounts paid
in settlement actually and reasonably incurred by such person in connection with
such action, suit or proceeding if such person acted in good faith and in the
manner such person reasonably believed to be in or not opposed to the best
interests of the corporation, and, with respect to any criminal action or
proceeding, had not reasonable cause to believe such person's conduct was
unlawful.

         Section 145(b) of the DGCL provides that a corporation may indemnify
any person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor by reason of the fact that he is
or was a director, officer, employee or agent of the corporation, or is or was
serving at the request of the corporation as a director, officer, employee or
agent of another corporation, partnership, joint venture, trust or other
enterprise against expenses (including attorneys' fees) actually and reasonably
incurred by such person in connection with the defense or settlement of such
action or suit if such person acted in good faith and in a manner such person
reasonably believed to be in or not opposed to the best interests of the
corporation and except that no indemnification shall be made in respect of any
claim, issue or matter as to which such person shall have been adjudged to be
liable to the corporation unless and only to the extent that the Delaware Court
of Chancery or the court in which such action or suit was brought shall
determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, such person is fairly and reasonably
entitled to indemnity for such expenses which the Delaware Court of Chancery or
such other court shall deem proper.

         Section 145(c) of the DGCL provides that to the extent that a present
or former director or officer of a corporation has been successful on the merits
or otherwise in defense of any action, suit or proceeding referred to in

                                      II-1
<PAGE>

Section 145(a) and (b), or in defense of any claim, issue or matter therein,
such person shall be indemnified against expenses (including attorneys' fees)
actually and reasonably incurred by such person in connection therewith.

     Section 145(d) of the DGCL provides that any indemnification under Section
145(a) and (b) (unless ordered by a court) shall be made by the corporation only
as authorized in the specific case upon a determination that indemnification of
the present or former director, officer, employee or agent is proper in the
circumstances because such person has met the applicable standard of conduct set
forth in Section 145(a) and (b). Such determination shall be made, with respect
to a person who is a director of officer at the time of such determination, (1)
by a majority vote of the directors who were not parties to such action, suit or
proceeding, even though less than a quorum, or (2) by a committee of such
directors designated by majority vote of such directors, even though less than a
quorum, or (3) if there are no such directors, or if such directors so direct,
by independent legal counsel in a written opinion, or (4) by the stockholders.

     Section 145(e) of the DGCL provides that expenses (including attorneys'
fees) incurred by an officer or director in defending any civil, criminal,
administrative or investigative action, suit or proceeding may be paid by the
corporation in advance of the final disposition of such action, suit or
proceeding upon receipt of an undertaking by or on behalf of such director or
officer to repay such amount if it shall ultimately be determined that such
person is not entitled to be indemnified by the corporation as authorized in
Section 145. Such expenses (including attorneys' fees) incurred by former
directors and officers or other employees and agents may be so paid upon such
terms and conditions, if any, as the corporation deems appropriate.

     Section 145(f) of the DGCL provides that the indemnification and
advancement of expenses provided by, or granted pursuant to, Section 145 shall
not be deemed exclusive of any other rights to which those seeking
indemnification or advancement of expenses may be entitled under any bylaw,
agreement, vote of stockholders or disinterested directors or otherwise, both as
to action in such person's official capacity and as to action in another
capacity while holding such office.

     Section 145(g) of the DGCL provides that a corporation shall have the power
to purchase and maintain insurance on behalf of any person who is or was a
director, officer, employee or agent of the corporation, or is or was serving at
the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise
against any liability asserted against such person and incurred by such person
any such capacity, or arising out of such person's status as such, whether or
not the corporation would have the power to indemnify such person against such
liability under Section 145.

Restated Certificate of Incorporation

     The Restated Certificate of Incorporation of Raytheon Company provides that
no director of Raytheon Company shall be personally liable to Raytheon Company
or its stockholders for monetary damages for breach of fiduciary duty as a
director, except to the extent such exemption or limitation is prohibited under
the DGCL as it currently exists or as it may be amended in the future.

     The Restated Certificate of Incorporation also provides that Raytheon
Company shall indemnify each person who was or is made a party or is threatened
to be made a party to or is involved in any action, suit or proceeding, whether
civil, criminal, administrative or investigative, by reason of the fact that
such person is or was a director or officer of Raytheon Company or is or was
serving at the request of Raytheon Company as a director or officer of another
corporation or of a partnership, joint venture, trust or other enterprise,
including service with respect to employee benefit plans (whether the basis of
such action, suit or proceeding is alleged action in an official capacity as a
director or officer or in any other capacity while serving as a director or
officer), to the fullest extent authorized by the DGCL as it currently exists or
as it may be amended in the future, against all expense, liability and loss
(including attorneys' fees, judgments, fines, payments in settlement and excise
taxes or penalties arising under the Employee Retirement Income Security Act of
1974, as in effect from time to time) reasonably incurred or suffered by such
person. Such indemnification shall continue as to a person who ceases to be a
director or officer of Raytheon Company and shall inure to the benefit of such
person's heirs, executors and administrators. Raytheon Company shall not be
required to indemnify a person in connection with such action, suit or
proceeding initiated by such person if it was not authorized by the Board of
Directors except under limited circumstances.

                                      II-2
<PAGE>

     The Restated Certificate of Incorporation also provides that Raytheon
Company shall pay the expenses of directors and officers incurred in defending
any such action, suit or proceeding in advance of its final disposition;
provided, however, that, if and to the extent that the DGCL requires, the
payment of expenses incurred by a director or officer in advance of the final
disposition of any action, suit or proceeding shall be made only upon receipt of
an undertaking by the director or officer to repay all amounts advanced if it
should be ultimately determined that the director or officer is not entitled to
be indemnified under the Restated Certificate of Incorporation or otherwise. If
a claim for indemnification or advancement of expenses by an officer or director
under the Restated Certificate of Incorporation is not paid in full within 30
calendar days after a written claim therefor has been received by Raytheon
Company, the claimant may file suit to recover the unpaid amount of such claim
and, if successful in whole or in part, shall be entitled also to be paid the
expense of prosecuting such claim. It shall be a defense to any such action
(other than an action brought to enforce a claim for expenses incurred in
defending any action, suit or proceeding in advance of its final disposition
where the required undertaking, if any is required, has been tendered to
Raytheon Company) that the claimant has not met the standard of conduct which
makes it permissible under the DGCL for the Company to indemnify the claimant
for the amount claimed. Raytheon Company shall have the burden of providing such
defense. Neither the failure of Raytheon Company to have made a determination
prior to the commencement of such action that indemnification of the claimant is
proper in circumstances because the claimant has met the applicable standard of
conduct set forth in the DGCL, nor an actual determination by Raytheon Company
that the claimant has not met such applicable standard of conduct, shall be a
defense to the action or create a presumption that the claimant has not met the
applicable standard of conduct. The right to indemnification and the payment of
expenses conferred on any person by the Restated Certificate of Incorporation
shall not be exclusive of any other rights which such person may have or
hereafter acquire under any statute, provision of the Restated Certificate of
Incorporation or the Amended and Restated By-Laws of Raytheon Company,
agreement, vote of stockholders or disinterested directors or otherwise.

     Any repeal or modification of the provisions of the Restated Certificate of
Incorporation described herein by the stockholders of Raytheon Company will not
adversely affect any limitation on the personal liability of directors for, or
any rights of directors in respect of, any cause of action, suit or claim
accruing or arising prior to the repeal or modification.

     The Restated Certificate of Incorporation also provides that Raytheon
Company may maintain insurance to protect itself and any director, officer,
employee or agent of Raytheon Company or another corporation, partnership, joint
venture, trust or other enterprise against any such expense, liability or loss,
whether or not Raytheon Company would have the power to indemnify such person
against such expense, liability or loss under DGCL.

Item 16. Exhibits

    *2.1  Agreement and Plan of Merger dated as of January 16, 1997 by and
          between Raytheon Company and HE Holdings, Inc., filed as an exhibit to
          Raytheon Company's Current Report on Form 8-K filed with the
          Securities and Exchange Commission on January 17, 1997, is hereby
          incorporated by reference.

    *2.2  Hughes Spin-Off Separation Agreement dated as of December 17, 1997 by
          and between HE Holdings, Inc. and General Motors Corporation filed as
          an exhibit to Raytheon Company's Registration Statement on Form S-3,
          File No. 333-44321, is hereby incorporated by reference.

    *4.1  Raytheon Company Restated Certificate of Incorporation, restated as of
          February 11, 1998 filed as an exhibit to Raytheon Company's Annual
          Report on Form 10-K for the year ended December 31, 1997, is hereby
          incorporated by reference.

    *4.2  Raytheon Company Amended and Restated By-Laws, as amended through
          January 28, 1998 filed as an exhibit to Raytheon Company's Annual
          Report on Form 10-K for the year ended December 31, 1997, is hereby
          incorporated by reference.

                                      II-3
<PAGE>

    *4.3   Indenture relating to Senior Debt Securities dated as of July 3, 1995
           between Raytheon Company and The Bank of New York, as Trustee, filed
           as an exhibit to Raytheon Company's Registration Statement on Form S-
           3, File No. 33-59241, is hereby incorporated by reference.

    *4.4   Indenture relating to Subordinated Debt Securities dated as of July
           3, 1995 between Raytheon Company and The Bank of New York, as
           Trustee, filed as an exhibit to Raytheon Company's Registration
           Statement on Form S-3, File No. 33-59241, is hereby incorporated by
           reference.

    *4.5   Form of Senior Debt Securities (See Exhibit 4.3).

    *4.6   Form of Subordinated Debt Securities (See Exhibit 4.4).

    *4.7   Rights Agreement dated as of December 15, 1997 between Raytheon
           Company and State Street Bank and Trust Company, as Rights Agent,
           filed as an exhibit to Raytheon Company's Registration Statement on
           Form 8-A, File No. 1-13699, is hereby incorporated by reference.

  ***5.1   Opinion of Thomas D. Hyde, Esq., Senior Vice President, General
           Counsel and Secretary of Raytheon Company.

\_\ 12.1   Statement regarding Computation of Ratio of Earnings to Combined
           Fixed Charges and Preferred Stock Dividends.

 ***23.1   Consent of Thomas D. Hyde, Esq. (included in Exhibit 5.1)

    23.2   Consent of PricewaterhouseCoopers LLP

 ***24     Powers of Attorney (included in signature pages)

  **25     Form T-1 Statement of Eligibility of the Senior Debt Trustee and the
           Subordinated Debt Trustee

___________________
*         Incorporated herein by reference.
**        To be filed either by amendment or as an exhibit to a report filed
          under the Securities Exchange Act of 1934, as amended, and
          incorporated herein by reference.
***       Previously filed.

Item 17.  Undertakings.

          (A)  The undersigned registrant hereby undertakes:

               (1)  To file, during any period in which offers or sales are
being made, a post-effective amendment to this registration statement:

                    (i)  To include any prospectus required by section 10(a)(3)
          of the Securities Act of 1933, as amended (the "Securities Act");

                    (ii) To reflect in the prospectus any facts or events
          arising after the effective date of the registration statement (or the
          most recent post-effective amendment thereof) which, individually or
          in the aggregate, represents a fundamental change in the information
          set forth in the registration statement. Notwithstanding the
          foregoing, any increase or decrease in the volume of securities
          offered (if the total dollar value of securities offered would not
          exceed that which was registered) and any deviation from the low or
          high end of the estimated maximum offering range may be reflected in
          the form of prospectus filed with the Commission pursuant to Rule
          424(b) if, in the aggregate, the changes in volume and price represent
          no more than a 20 percent change in the maximum aggregate offering
          price set forth in the "Calculation of Registration Fee" table in the
          effective registration statement.

                                      II-4
<PAGE>

                    (iii)  To include any material information with respect to
         the plan of distribution not previously disclosed in the registration
         statement or any material change to such information in the
         registration statement;

               (2)  That, for the purpose of determining any liability under the
Securities Act, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

               (3)  To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

          (B)  The undersigned registrant hereby undertakes that, for purposes
of determining any liability under the Securities Act, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to section 15(d) of the Exchange Act that is incorporated
by reference in the registration statement) shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

          (C)  Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.

                                      II-5
<PAGE>

                                  SIGNATURES

          Pursuant to the requirements of the Securities Act of 1933, Raytheon
Company has caused this Pre-Effective Amendment No. (4) to the Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the Town of Lexington, Commonwealth of Massachusetts, on the
(22/nd/ day) of (February), 2000.


                                        RAYTHEON COMPANY


                                        By: /s/ Thomas D. Hyde
                                           -------------------------------------
                                            Thomas D. Hyde
                                            Senior Vice President, General
                                             Counsel and Secretary for the
                                             Registrant

          Pursuant to the requirements of the Securities Act of 1933, this Pre-
Effective Amendment No. (4) to the Registration Statement has been signed below
by the following persons in the capacities and on the dates indicated:

<TABLE>
<CAPTION>
                   SIGNATURE                                   CAPACITY                       DATE
                   ---------                                   --------                       ----
<S>                                              <C>                                     <C>
/s/ DANIEL P. BURNHAM*                           Chairman and Chief Executive Officer    (February 22), 2000
- ------------------------------------                                                     -------------
DANIEL P. BURNHAM                                and Director (Principal Executive
                                                 Officer)

/s/ FRANKLYN A. CAINE*                           Senior Vice President and Chief         (February 22), 2000
- ------------------------------------                                                     -------------
FRANKLYN A. CAINE                                Financial Officer
                                                 (Principal Financial Officer)

/s/ MICHELE C. HEID*                             Vice President and Corporate            (February 22), 2000
- ------------------------------------                                                     -------------
MICHELE C. HEID                                  Controller (Principal Accounting
                                                 Officer)

/s/ BARBARA M. BARRETT*                          Director                                (February 22), 2000
- ---------------------------                                                              -------------
BARBARA M. BARRETT

/s/ FERDINAND COLLOREDO-MANSFELD*                Director                                (February 22), 2000
- ---------------------------------                                                        -------------
FERDINAND COLLOREDO-MANSFELD

/s/ THOMAS E. EVERHART*                          Director                                (February 22), 2000
- ---------------------------                                                              -------------
THOMAS E. EVERHART

/s/ JOHN R. GALVIN*                              Director                                (February 22), 2000
- ------------------------------------                                                     -------------
JOHN R. GALVIN

/s/ L. DENNIS KOZLOWSKI*                         Director                                (February 22), 2000
- ---------------------------                                                              -------------
L. DENNIS KOZLOWSKI

/s/ HENRIQUE DE CAMPOS MEIRELLES*                Director                                (February 22), 2000
- ---------------------------------                                                        -------------
HENRIQUE DE CAMPOS MEIRELLES
</TABLE>

<PAGE>

<TABLE>
<S>                                              <C>                                     <C>
/s/ THOMAS L. PHILLIPS*                          Director                                (February 22), 2000
- ------------------------------------                                                     -------------
THOMAS L. PHILLIPS

/s/ DENNIS J. PICARD*                            Director                                (February 22), 2000
- ------------------------------------                                                     -------------
DENNIS J. PICARD

/s/ WARREN B. RUDMAN*                            Director                                (February 22), 2000
- ------------------------------------                                                     -------------
WARREN B. RUDMAN

/s/ ALFRED M. ZEIEN*                             Director                                (February 22), 2000
- ------------------------------------                                                     -------------
ALFRED M. ZEIEN
</TABLE>


* By:  /s/ Thomas D. Hyde
     -------------------------------
       Thomas D. Hyde
       Attorney in Fact

<PAGE>
                                                                   Exhibit 12.1

                       RAYTHEON COMPANY AND SUBSIDIARIES

                         STATEMENTS RE: COMPUTATION OF
                 RATIOS OF EARNINGS TO COMBINED FIXED CHARGES
                         AND PREFERRED STOCK DIVIDENDS
                         (DOLLAR AMOUNTS IN MILLIONS)

<TABLE>
<CAPTION>
                                                                        FISCAL YEAR ENDED
                                                            1995     1996     1997      1998      1999
<S>                                                        <C>      <C>      <C>      <C>        <C>
Income before taxes per statements of income......         1,192    1,083      790     1,467       828

Add:
   Portion of rents representative of interest
      factor......................................            41       45       50       113       111
   Interest on indebtedness.......................           197      256      397       739       739
                                                           -----    -----    -----     -----     -----
   Income as adjusted.............................         1,430    1,385    1,237     2,319     1,678
                                                           =====    =====    =====     =====     =====
Fixed charges:
   Portion of rents representative of interest
      factor......................................            41       45       50       113       111
   Interest on indebtedness.......................           197      256      397       739       739
   Capitalized interest...........................             1        3        4         2         2
                                                           -----    -----    -----     -----     -----
      Fixed charges...............................           239      304      451       854       852
                                                           =====    =====    =====     =====     =====
Preferred Stock:
   Preferred Stock Dividends......................             0        0        0         0         0
                                                           =====    =====    =====     =====     =====
Ratio of Earnings to Combined Fixed Charges and
   Preferred Stock Dividends......................           6.0      4.6      2.7       2.7       2.0
                                                           =====    =====    =====     =====     =====
</TABLE>


<PAGE>

                                                                   Exhibit 23.2

                      CONSENT OF INDEPENDENT ACCOUNTANTS
                      ----------------------------------

We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our report dated January 26, 1999, except for the
information in Notes B, C and S as to which the date is January 17, 2000,
relating to the financial statements, which appears in Raytheon Company's Annual
Report on Form 10-K/A for the year ended December 31, 1998. We also consent to
the incorporation by reference of our report dated January 26, 1999 relating to
the financial statement schedules, which appears in such Annual Report on Form
10-K/A. We also consent to the references to us under the headings "Experts" and
"Selected Financial Data" in such Registration Statement.

PricewaterhouseCoopers LLP

Boston, Massachusetts
February 22, 2000




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