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                                          EXHIBIT 21, ANNUAL REPORT ON FORM 10-K
                                            FOR THE YEAR ENDED DECEMBER 31, 1997
                                                   COMMISSION FILE NUMBER 1-3671

                         GENERAL  DYNAMICS  CORPORATION
                                  SUBSIDIARIES



Subsidiaries of General Dynamics                                     Place of                  Percent of
Corporation (Parent and Registrant)                                 Incorporation             Voting Power
- ----------------------------------                                  -------------             ------------
                                                                                             
American Overseas Marine Corporation  . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Quincy Maritime Corporation I   . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Quincy Maritime Corporation II  . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Quincy Maritime Corporation III   . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Water Transportation Alternatives, Inc.   . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Bath Iron Works Corporation   . . . . . . . . . . . . . . . . . .   Maine . . . . . . . . . . . .  100
BIW Acquisition Corporation   . . . . . . . . . . . . . . . . . .   Maine . . . . . . . . . . . .  100
CD Plus S.A.R.L.  . . . . . . . . . . . . . . . . . . . . . . . .   France  . . . . . . . . . . .  100
CDI Acquisition Company Limited . . . . . . . . . . . . . . . . .   Canada  . . . . . . . . . . .  100
    Computing Devices Canada, Ltd.  . . . . . . . . . . . . . . .   Canada  . . . . . . . . . . .  100
         Computing Devices Company Ltd. . . . . . . . . . . . . .   United Kingdom  . . . . . . .  100
             Computing Devices Hastings Ltd.  . . . . . . . . . .   England . . . . . . . . . . .  100
             Computing Devices Eastbourne Ltd.  . . . . . . . . .   England . . . . . . . . . . .  100
Concord I Maritime Corporation  . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Braintree I Maritime Corp.    . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Concord II Maritime Corporation   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Braintree II Maritime Corp.   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Concord III Maritime Corporation  . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Braintree III Maritime Corp.    . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Concord IV Maritime Corporation   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Braintree IV Maritime Corp.   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Concord V Maritime Corporation  . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Braintree V Maritime Corp.    . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Convair Aircraft Corporation  . . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Convair Corporation   . . . . . . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Elco Company, The . . . . . . . . . . . . . . . . . . . . . . . .   New Jersey  . . . . . . . . .  100
Electric Boat Corporation . . . . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Electric Boat Groton Engineering, Inc.  . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Electric Boat Groton Operations, Inc.   . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Electric Boat Newport Engineering, Inc.   . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Electric Boat Quonset Point Operations, Inc.  . . . . . . . .   Delaware  . . . . . . . . . .  100
    Electro Dynamic Corporation   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    General Dynamics Power Technology, Inc.   . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Electrocom, Inc.  . . . . . . . . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
General Dynamics Advanced Technology Systems, Inc.  . . . . . . .   Delaware  . . . . . . . . . .  100
General Dynamics Armament Systems, Inc. . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    General Dynamics Ordnance Systems, Inc.   . . . . . . . . . .   Delaware  . . . . . . . . . .  100
General Dynamics (C.I.) Limited . . . . . . . . . . . . . . . . .   Cayman Islands  . . . . . . .  100
General Dynamics Defense Systems, Inc.  . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    AV Technology, LLC  . . . . . . . . . . . . . . . . . . . . .   Maryland  . . . . . . . . . .   80
General Dynamics Foreign Sales Corporation  . . . . . . . . . . .   Virgin Islands  . . . . . . .  100
General Dynamics Information Systems, Inc.  . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Computing Devices International Employment, Inc.  . . . . . .   Delaware  . . . . . . . . . .  100
    Paragon Imaging, Inc.   . . . . . . . . . . . . . . . . . . .   Florida . . . . . . . . . . .  100
General Dynamics International Corporation  . . . . . . . . . . .   Delaware  . . . . . . . . . .  100

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                                          EXHIBIT 21, ANNUAL REPORT ON FORM 10-K
                                            FOR THE YEAR ENDED DECEMBER 31, 1997
                                                                          PAGE 2

                         GENERAL  DYNAMICS  CORPORATION
                                  SUBSIDIARIES



Subsidiaries of General Dynamics                                     Place of                  Percent of
Corporation (Parent and Registrant)                                 Incorporation             Voting Power
- ----------------------------------                                  -------------             ------------
                                                                                             
General Dynamics Land Systems Inc.  . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    General Dynamics Amphibious Systems, Inc.   . . . . . . . . .   Delaware  . . . . . . . . . .  100
    General Dynamics Land Systems International, Inc.   . . . . .   Delaware  . . . . . . . . . .  100
    General Dynamics Land Systems Product Support and Services
      Company   . . . . . . . . . . . . . . . . . . . . . . . . .   Texas . . . . . . . . . . . .  100
         General Dynamics Support Services Company  . . . . . . .   Delaware  . . . . . . . . . .  100
         Global Support Services Company  . . . . . . . . . . . .   Virgin Islands  . . . . . . .  100
    General Dynamics Land Systems Tallahassee Operations, Inc.      Delaware  . . . . . . . . . .  100
    G.T. Devices, Inc.  . . . . . . . . . . . . . . . . . . . . .   Maryland  . . . . . . . . . .  100
General Dynamics Limited  . . . . . . . . . . . . . . . . . . . .   United Kingdom  . . . . . . .  100
General Dynamics Manufacturing Limited  . . . . . . . . . . . . .   Canada  . . . . . . . . . . .  100
General Dynamics Marine Services, Inc.  . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
General Dynamics Properties, Inc. . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
General Dynamics Shared Resources, Inc. . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Material Service Resources Company  . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
    Century Mineral Resources, Inc.   . . . . . . . . . . . . . .   Illinois  . . . . . . . . . .  100
    Material Service Corporation  . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
         EPSP, Inc. . . . . . . . . . . . . . . . . . . . . . . .   Texas . . . . . . . . . . . .  100
         Material Service Foundation  . . . . . . . . . . . . . .   Illinois  . . . . . . . . . .  100
         MLRB, Inc. . . . . . . . . . . . . . . . . . . . . . . .   Illinois  . . . . . . . . . .  100
         Mineral and Land Resources Corporation . . . . . . . . .   Delaware  . . . . . . . . . .  100
             MLRT, Inc. . . . . . . . . . . . . . . . . . . . . .   Texas . . . . . . . . . . . .  100
         Thornton Quarries Corporation  . . . . . . . . . . . . .   Illinois  . . . . . . . . . .  100
    Freeman Energy Corporation  . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
         Freeman Resources, Inc.  . . . . . . . . . . . . . . . .   Illinois  . . . . . . . . . .  100
         Freeman United Coal Mining Company . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Patriot I Shipping Corporation  . . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Patriot II Shipping Corporation   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
Patriot IV Shipping Corporation   . . . . . . . . . . . . . . . .   Delaware  . . . . . . . . . .  100
S-C 1969 Credit Corporation . . . . . . . . . . . . . . . . . . .   New York  . . . . . . . . . .  100