RAYTHEON CO/
424B2, 2000-03-13
SEARCH, DETECTION, NAVAGATION, GUIDANCE, AERONAUTICAL SYS
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                                                Filed pursuant to Rule 424(b)(2)
                                                      Registration No. 333-82529

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 March 10, 2000, the last reported sale price of our Class B common
stock on the New York Stock Exchange was $17.750.

     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.

     The date of this Prospectus is March 13, 2000
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                               TABLE OF CONTENTS
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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............................    14
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends..    14
Use of Proceeds............................................................    15
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..............................................................    31
Experts....................................................................    31
</TABLE>

                                      -2-
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                                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-
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  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 electronics businesses and cost performance at both Raytheon
Aircraft Company and Raytheon Engineers & Constructors, contributed to lower
earnings for the fourth quarter of 1999.

                                      -4-
<PAGE>

  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 has
been eliminated, and the Defense Systems and Sensors and Electronics Systems
segments are being 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.

  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.

                                      -5-
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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
                .  export control
                .  government security regulations
                .  employment practices
                .  protection of the environment
                .  accuracy of records and the recording of costs

                                      -6-
<PAGE>

          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
 .  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

                                      -7-
<PAGE>

 .  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.

  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.

                                      -8-
<PAGE>

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.

  In 1998 and 1999, we experienced significant cost overruns, as well as project
delays and cancellations, at our subsidiaries Raytheon Engineers & Constructors
and Raytheon Aircraft Company.  There may be further cost overruns and losses as
we move to close out older contracts at Raytheon Engineers & Constructors,
particularly four large international turnkey contracts.  Any additional cost
overruns or losses would have an adverse effect on our financial results.

                                      -9-
<PAGE>

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 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.

                                      -10-
<PAGE>

  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 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.

                                      -11-
<PAGE>

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
 .  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 March 10, 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 $17.750
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.

                                      -12-
<PAGE>

  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.


                      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.

                                      -13-
<PAGE>

                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 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:

                        Fiscal Year Ended December 31,
- --------------------------------------------------------------------------------
           1999          1998         1997         1996         1995
           ----          ----         ----         ----         ----
           2.0x          2.7x         2.7x         4.5x         5.8x

   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.

                                      -14-
<PAGE>

                                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.


                         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

                                      -15-
<PAGE>

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.

  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;

                                      -17-
<PAGE>

 .  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;

 .  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.

                                      -18-
<PAGE>

  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 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

                                      -19-
<PAGE>

 .  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.

  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.

                                      -20-
<PAGE>

  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.

  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

                                      -22-
<PAGE>

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.

  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.

                                      -23-
<PAGE>

  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;

 .  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.

                                      -24-
<PAGE>

  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.

  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.

                                      -25-
<PAGE>

PROVISIONS OF OUR RESTATED CERTIFICATE OF INCORPORATION AND AMENDED AND RESTATED
BY-LAWS

  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
120th 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 120th
day prior to the meeting and ending thirty days later, or, if later, the 10th
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 120th day before the
special meeting and ending thirty days later, or, if later, the 10th 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.

                                      -26-
<PAGE>

  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 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;

                                      -27-
<PAGE>

     .  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

     .  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.

                                      -28-
<PAGE>

                     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.

  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

                                      -29-
<PAGE>

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.

  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.

                                      -30-
<PAGE>

  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.

                                      -31-
<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
                                ---------------



                                 March 9, 2000



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