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                                 UNITED  STATES
                      SECURITIES  AND  EXCHANGE  COMMISSION
                            Washington,  D.C.  20549

                                 SCHEDULE  13D/A
                   Under  the  Securities  Exchange  Act  of  1934
                              (Amendment  No.  1)*

SpaceDev,  Inc.
--------------------------------------------------------------------------------
                                (Name  of  Issuer)

$0.0001  par  value  common  stock
--------------------------------------------------------------------------------
                         (Title  of  Class  of  Securities)

846241  10  7
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                                 (CUSIP  Number)

James  W.  Benson  -  13855 Stowe Drive, Poway, California  92064 (858) 375-2000
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                 (Name,  Address  and  Telephone  Number  of  Person
               Authorized  to  Receive  Notices  and  Communications)

November  18,  2004
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             (Date  of  Event  which  Requires  Filing  of  This  Statement)

   If  the  filing  person  has  previously filed a statement on Schedule 13G to
   report  the  acquisition  that  is  the  subject of this Schedule 13D, and is
   filing  this  schedule  because  of  ss.  240.13d-1(e),  240.13d-1(f)  or
   240.13d-1(g),  check  the  following  box  [_].

   Note:  Schedules  filed  in  paper format shall include a signed original and
   five copies of the schedule, including all exhibits. See ss. 240.13d-7(b) for
   other  parties  to  whom  copies  are  to  be  sent.

   *  The  remainder  of  this  cover  page  shall be filled out for a reporting
   person's  initial  filing  on  this form with respect to the subject class of
   securities,  and  for  any  subsequent amendment containing information which
   would  alter  disclosures  provided  in  a  prior  cover  page.

   The  information  required  on  the remainder of this cover page shall not be
   deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
   Act  of  1934  or otherwise subject to the liabilities of that section of the
   Act but shall be subject to all other provisions of the Act (however, see the
   Notes).

                                      PAGE

CUSIP  No.  84621  10  7


--------------------------------------------------------------------------------
1.   Name  of  Reporting  Persons.
     I.R.S.  Identification  Nos.  of  above  persons  (entities  only).

James  W.  Benson
--------------------------------------------------------------------------------
2.   Check  the  Appropriate  Box  If  a  Member  of  a Group (See Instructions)
     (a)  [_]
     (b)  [_]
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3.   SEC  Use  Only

--------------------------------------------------------------------------------
4.   Source  of  Funds  (See  Instructions)
PF
--------------------------------------------------------------------------------
5.   Check  If  Disclosure  of  Legal  Proceedings  Is  Required  Pursuant  to
     Items  2(d)  or  2(e)                                             [_]

--------------------------------------------------------------------------------
6.   Citizenship  or  Place  of  Organization
USA
--------------------------------------------------------------------------------
               7.   Sole  Voting  Power
  NUMBER  OF         4,372,147
   SHARES      -----------------------------------------------------------------
BENEFICIALLY   8.   Shared  Voting  Power
 OWNED  BY           497,413
    EACH       -----------------------------------------------------------------
  REPORTING    9.   Sole  Dispositive  Power
   PERSON           4,627,147
    WITH       -----------------------------------------------------------------
               10.  Shared  Dispositive  Power
                    497,413
--------------------------------------------------------------------------------
11.  Aggregate  Amount  Beneficially  Owned  by  Each  Reporting  Person
5,124,560
--------------------------------------------------------------------------------
12.  Check  Box  If  the  Aggregate  Amount  in Row (11) Excludes Certain Shares
     (See  Instructions)                                               [_]
--------------------------------------------------------------------------------
13.  Percent  of  Class  Represented  by  Amount  in  Row  (11)
-205851274325%-2058512743
--------------------------------------------------------------------------------
14.  Type  of  Reporting  Person  (See  Instructions)
IN
--------------------------------------------------------------------------------


                                      PAGE

ITEM  1.  SECURITY  AND  ISSUER

SpaceDev,  Inc.  ("SpaceDev")
Common  Stock,  $0.0001  par  value
13855  Stowe  Drive
Poway,  California  92064

ITEM  2.  IDENTITY  AND  BACKGROUND

     (a)  James  W.  Benson

     (b)  13855  Stowe  Dr.  Poway,  CA.  92064

     (c)  Chief  Executive  Officer

     (d)  N/A

     (e)  N/A

     (f)  U.S.  Citizen

ITEM  3.  SOURCE  AND  AMOUNT  OF  FUNDS  OR  OTHER  CONSIDERATION

Effective  November  18,  2004,  Mr.  Benson  entered into a property settlement
agreement  with  his wife, Susan Benson, whereby4,372,147 shares previously held
by them as community property were transferred to Susan Benson. Susan Benson has
sole  voting  power and rights to disposition of such shares, which are equal to
approximately  21%  of the outstanding common stock of the Company. In addition,
Mrs. Benson will receive one-half of vested options for 510,000 shares of common
stock  in  SpaceDev,  and  one-half  of unvested options for 2,000,000 shares of
common  stock  in SpaceDev, as well as one-half of all other options received by
Mr.  Benson pursuant to his current employment agreement with the Company in the
future.  Another  497,413  shares  held  by  Space  Development  Institute,  and
previously reported by Mr. Benson as being indirectly beneficially owned by him,
are  subject to limitations on the voting and disposition without the consent of
Mrs.  Benson.

ITEM  4.  PURPOSE  OF  TRANSACTION

Not  applicable.

ITEM  5.  INTEREST  IN  SECURITIES  OF  THE  ISSUER

         (a)  Mr.  Benson  holds 5,124,560 shares of the Company's common stock,
including  shares  issuable  under fully vested options. Mr. Benson owns options
for  an  additional  1,000,000  shares  which  are unvested. 497,413 shares held
indirectly  through  Space  Development  Institute, a 501(c)(3) corporation, are
subject  to  limitations  on his rights to vote and dispose of the shares. Space
Development Institute may only vote or dispose of the shares with the consent of
both  James  W.  Benson  and  his  wife,  Susan  Benson.

         (b)  As  indicated  under  paragraph (a), Mr. Benson does not have sole
voting  rights  to  497,413  shares  held  by  Space  Development  Institute.

         (c)  Effective  November  18,  2004, Mr. Benson entered into a property
settlement  agreement with his wife, Susan Benson, whereby 4,372,147 shares held
directly  by  Mr. Benson with his wife as community property were transferred to
Susan  Benson.  Susan  Benson has sole voting power and rights to disposition of
such  shares.  Another  497,413  shares  held by Space Development Institute are
subject  to  limitations  on  the  voting and disposition without the consent of
Susan  Benson.

         (d)  As  indicated  under  paragraph (a), Mr. Benson does not have sole
voting  rights  to  497,413  shares  held  by Space Development Institute. Space
Development  Institute  is governed by its board of directors, which will direct
the  voting of the shares held by it in SpaceDev, as well as the distribution of
dividends  on  or  proceeds  from  the  sale  of  such  shares.

         (e)  N/A.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
SECURITIES  OF  THE  ISSUER

Susan  Benson  has  received  one-half of all stock options issued to Mr. Benson
from  SpaceDev  prior to the date of this report or to be issued pursuant to his
employment  agreement  with  SpaceDev  in the future. Pursuant to the employment
agreement  dated  January  21,  2000,  as  amended,  Mr.  Benson  could  receive
additional options to purchase up to 1,500,000 shares of SpaceDev's common stock
of  which  Mrs.  Benson  would  be  granted one-half, or 750,000.  Following the
property  settlement,  he  currently has rights to an incentive stock option for
5,000  shares  exercisable  at $0.9469 per share and non-qualified stock options
for  1,250,000  shares  exercisable  on  an  escalating  scale  set forth in his
employment  agreement.

ITEM  7.  MATERIAL  TO  BE  FILED  AS  EXHIBITS

None.

                                      PAGE


                                    SIGNATURE

After  reasonable  inquiry and to the best of my knowledge and belief, I certify
that  the information set forth in this statement is true, complete and correct.

                                                              November  23, 2004
                                                              ------------------
                                                                            Date

                                                            /s/  James W. Benson
                                                   -----------------------------
                                                                       Signature
                                                                James  W. Benson
                                                        Chief  Executive Officer
                                              ----------------------------------
                                                                      Name/Title


ATTENTION:  INTENTIONAL  MISSTATEMENTS  OR  OMISSIONS OF FACT CONSTITUTE FEDERAL
CRIMINAL  VIOLATIONS  (SEE  18  U.S.C.  1001)