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                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 3

            INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
       Section 17(a) of the Public Utility Holding Company Act of 1935 or
               Section 30(f) of the Investment Company Act of 1940


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1. Name and Address of Reporting Person

     Wyman, G. Mead
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   (Last)               (First)                 (Middle)

     Eight Willard Street
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                                    (Street)

     Cambridge, MA   02138
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   (City)               (State)                 (Zip)


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2. Date of Event Requiring Statement (Month/Day/Year)

     1/29/98

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3. IRS or Social Security Number of Reporting Person (Voluntary)


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4. Issuer Name and Ticker or Trading Symbol

     Mercury Computer Systems, Inc.   MRCY
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5 Relationship of Reporting Person to Issuer
   (Check all applicable)

   [   ]   Director                             [   ]   10% Owner
   [ X ]   Officer (give title below)           [   ]   Other (specify below)


         Chief Financial Officer    
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6. If Amendment, Date of Original (Month/Year)


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             Table I -- Non-Derivative Securities Beneficially Owned
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                                                                 3. Ownership Form:
                                      2. Amount of Securities       Direct (D) or  
1. Title of Security                     Beneficially Owned         Indirect (I)       4. Nature of Indirect Beneficial Ownership
   (Instr. 4)                            (Instr. 4)                 (Instr. 5)            (Instr.5)                              
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   Common Stock                          36,000                      D
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Reminder: Report on a separate line for each class of securities beneficially
owned directly or indirectly.

                           (Print or Type Responses)





FORM 3 (continued)

              Table II -- Derivative Securities Beneficially Owned
         (e.g., puts, calls, warrants, options, convertible securities)

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                                                                                                        5. Owner-
                                                    3. Title and Amount of Securities                      ship
                                                       Underlying Derivative Security                      Form of
                         2. Date Exercisable           (Instr. 4)                                          Derivative
                            and Expiration Date     ---------------------------------    4. Conver-        Security:
                            (Month/Day/Year)                               Amount           sion or        Direct      7. Nature of
                         ----------------------                            or               Exercise       (D) or         Indirect
                         Date       Expira-                                Number           Price of       Indirect       Beneficial
1. Title of Security     Exer-      tion                                   of               Derivative     (I)            Ownership
   (Instr. 4)            cisable    Date            Title                  Shares           Security       (Instr.5)      (Instr. 5)
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Stock Option             *          1/27/07         Common                 80,000        4.00           D
(right to buy)  
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Explanation of Responses:
*Of options to purchase 40,000 shares 20% are exercisable.  The remainder of 
those options become exercisable in equal increments on December 2 in each of 
1998, 1999, 2000 and 2001. Options to purchase the remaining 40,000 shares vest
on performance criteria. 


   /s/G. Mead Wyman                                          1/29/98
- ---------------------------------------------            -----------------------
      **Signature of Reporting Person                             Date

**   Intentional misstatements or omissions of facts constitute Federal Criminal
     Violations.

     See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note:  File three copies of this Form, one of which must be manually signed.
       If space provided is insufficient. See Instruction 6 for procedure.