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

                                 SCHEDULE  13D/A
                   Under  the  Securities  Exchange  Act  of  1934
                              (Amendment  No.  2)*

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

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

846241  10  7
--------------------------------------------------------------------------------
                                 (CUSIP  Number)

James  W.  Benson  -  13855 Stowe Drive, Poway, California  92064 (858) 375-2020
--------------------------------------------------------------------------------
                 (Name,  Address  and  Telephone  Number  of  Person
               Authorized  to  Receive  Notices  and  Communications)

January 12, 2006
--------------------------------------------------------------------------------
             (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)  [_]
--------------------------------------------------------------------------------
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         3,000,000
   SHARES      -----------------------------------------------------------------
BENEFICIALLY   8.   Shared  Voting  Power
 OWNED  BY           3,189,707
    EACH       -----------------------------------------------------------------
  REPORTING    9.   Sole  Dispositive  Power
   PERSON           3,000,000
    WITH       -----------------------------------------------------------------
               10.  Shared  Dispositive  Power
                    4,799,707
--------------------------------------------------------------------------------
11.  Aggregate  Amount  Beneficially  Owned  by  Each  Reporting  Person
7,799,707
--------------------------------------------------------------------------------
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)
29.75%
--------------------------------------------------------------------------------
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  Technology Officer and Chairman of the Board of SpaceDev, Inc.,
     the  address  for  which  is  set  forth  above.

     (d)  N/A

     (e)  N/A

     (f)  U.S.  Citizen

ITEM  3.  SOURCE  AND  AMOUNT  OF  FUNDS  OR  OTHER  CONSIDERATION

Mr.  Benson has acquired shares of common stock of SpaceDev at various times and
prices  and  in  different types of transactions. The most recent changes in his
beneficial  ownership has resulted primarily from non-qualified stock options to
purchase  1,100,000 shares of SpaceDev common stock granted on December 20, 2005
as  part  of his current employment agreement as chief technology officer and as
chairman  of  the  board  of  directors  of SpaceDev, Inc. Mr. Benson also holds
non-qualified  stock options to purchase 510,000 shares of SpaceDev common stock
from  his  previous employment agreement with the Company which expired July 16,
2005. In addition to his non-qualified stock options, there are 3,000,000 shares
held  directly  by  Mr.  Benson.  Theses  shares  were  identified as a separate
property  asset of Mr. Benson as a result of a stipulated order on May 24, 2005.
The  order  also  stipulated  that  Mr. Benson would have an indirect beneficial
ownership  in  2,692,294  shares  held  jointly  with  Susan C. Benson, indirect
beneficial  ownership  interest  in  497,413  shares  held  in Space Development
Institute  (where  Mr.  Benson  is a member of the board of directors along with
Susan C. Benson) and indirect beneficial ownership in vested options to purchase
up  to an aggregate of 1,610,000 shares (which may constitute community property
with  Susan C. Benson). Excluded is approximately 1.2 million shares held by the
children  and  grand  children  of  Mr.  Benson,  for which Mr. Benson disclaims
beneficial ownership. Mr. Benson is the chairman and chief technology officer of
SpaceDev.

ITEM  4.  PURPOSE  OF  TRANSACTION

The  shares  were acquired by Mr. Benson for investment. The options to purchase
shares  of  SpaceDev  common  stock  were  granted  to Mr. Benson as part of his
compensation  in connection with his employment by SpaceDev. Mr. Benson does not
have  any  current  or  specific  plans  or proposals of the type required to be
reported  herein, although he may from time to time be involved in developing or
analyzing  plans  or proposals that could affect SpaceDev in connection with the
services  he  renders  to  SpaceDev  as  a  part  of  his  employment.

ITEM  5.  INTEREST  IN  SECURITIES  OF  THE  ISSUER

     (a)  Mr.  Benson  is  the  direct or indirect beneficial owner of 7,799,707
shares SpaceDev common stock, or 29.75% of the outstanding shares, including the
shares  that would be outstanding if the shares that Mr. Benson has the right to
purchase  were  actually outstanding. Included in these shares are (i) 3,000,000
shares  held directly by Mr. Benson and identified as his separate property in a
stipulated court order dated May 24, 2005; (ii) 2,692,294 shares held indirectly
with  Susan C. Benson; (iii) 1,610,000 shares that Mr. Benson indirectly has the
right  to  purchase  pursuant to vested options SpaceDev common stock granted to
him  by SpaceDev in connection with his employment; and (iv) 497,413 shares held
indirectly by Space Development Institute. Not included in the shares subject to
this  report  are  approximately 1.2 million shares of common stock owned by the
children  and  grand  children  of  Mr.  Benson as to which Mr. Benson disclaims
beneficial ownership. Also not included in the shares subject to this report are
2,963,200  shares  of  common  stock  owned  separately  by  Susan C. Benson and
identified  as  her separate property asset under a stipulated court order dated
May  24,  2005  as  to  which  shares Mr. Benson disclaims beneficial ownership.

     (b)  Mr.  Benson has sole voting power with respect to 3,000,000 shares and
shared  voting  power  with  respect  to  3,189,707  shares. Mr. Benson has sole
dispositive  power with respect to 3,000,000 shares and shared dispositive power
with  respect  to  4,799,707  shares.

     (c)  Mr.  Benson  and  his wife, Susan C. Benson, entered into a stipulated
court order dated May 24, 2005 under which 3,000,000 shares of common stock were
identified  as  a  separate property asset of Mr. Benson and 3,000,000 shares of
common  stock  were  identified as a separate property asset of Susan C. Benson.
The  separate  property asset of Susan C. Benson is not included in this report.

     (d)  With  respect  to  the 497,413 shares of SpaceDev common stock held by
Space  Development  Institute,  the  Board  of  Directors  of  Space Development
Institute, of which Mr. Benson is a member, has the power to vote the shares and
the  power to receive, or direct the receipt of, dividends and proceeds from the
sale  of  such shares. The 1,610,000 shares subject to options may be considered
the  community  property  of  Mr. Benson and Susan C. Benson (which may give her
certain  rights  with  respect  thereto).

         (e)  N/A.

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

On  May 24,  2005, James W. Benson and Susan C. Benson entered into a stipulated
order, which declared each to have sole beneficial ownership on 3,000,000 shares
of SpaceDev common stock as well as shared ownership on 2,692,294 shares held by
James W. Benson and Susan C. Benson as well as 497,413 shares of SpaceDev common
stock  held  by Space Development Institute of which Mr. and Ms. Benson are both
sole  members  of  the  Board  of  Directors.  The  order also called for shared
ownership  in  vested options to purchase up to an aggregate of 1,610,000 shares
(which  may  constitute  community  property  with  Susan  C.  Benson).

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.

                                                                January 12, 2006
                                                              ------------------
                                                                            Date


                                                            /s/  James W. Benson
                                                   -----------------------------
                                                                       Signature
                                                                James  W. Benson
                                              ----------------------------------
                                                                      Name/Title


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