home *** CD-ROM | disk | FTP | other *** search
/ Space & Astronomy / Space and Astronomy (October 1993).iso / mac / TEXT_ZIP / spacedig / V11_0 / V11_021.ZIP / V11_021
Internet Message Format  |  1991-07-08  |  2KB
  1. Return-path: <ota+space.mail-errors@andrew.cmu.edu>
  2. X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson
  3. Received: from beak.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests)
  4.           ID </afs/andrew.cmu.edu/usr1/ota/Mailbox/kZoFJUW00VcJ4CDk5Z>;
  5.           Thu,  8 Feb 90 01:44:49 -0500 (EST)
  6. Message-ID: <kZoFJCa00VcJMCC05D@andrew.cmu.edu>
  7. Reply-To: space+@Andrew.CMU.EDU
  8. From: space-request+@Andrew.CMU.EDU
  9. To: space+@Andrew.CMU.EDU
  10. Date: Thu,  8 Feb 90 01:44:31 -0500 (EST)
  11. Subject: SPACE Digest V11 #21
  12.  
  13. SPACE Digest                                      Volume 11 : Issue 21
  14.  
  15. Today's Topics:
  16.              Re: More Info On SSX
  17. ----------------------------------------------------------------------
  18.  
  19. Date: 8 Feb 90 01:29:56 GMT
  20. From: van-bc!ubc-cs!alberta!james@ucbvax.Berkeley.EDU  (James Bornyec; AGT Researcher)
  21. Subject: Re: More Info On SSX
  22.  
  23. In article <4911@itivax.iti.org>, aws@vax3.iti.org (Allen W. Sherzer) writes:
  24. > >>The anticipated cost of each vehicle is around $30 million,...
  25.  
  26. As I see it, SSX is quite small.  It only gives a payload of 
  27. about 10,000 lbs.  That is only 5 tons.  According to previously posted
  28. info, the total weight will be about 250 tons, and it will use up
  29. 90% of that or 225 tons of fuel.  I am not sure what fuel costs
  30. would be, but if you assume $1 a pound (probably rather high) it
  31. costs about $45 for a pound of payload in fuel costs.
  32.  
  33. James Borynec  james@alberta
  34.  
  35. ------------------------------
  36.  
  37. End of SPACE Digest V11 #21
  38. *******************
  39.