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- Newsgroups: sci.space
- Path: sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!CSD-NewsHost!jmc
- From: jmc@SAIL.Stanford.EDU (John McCarthy)
- Subject: Re: Stupid Shut Cost arguements (was Re: Terminal Velocity
- In-Reply-To: BrianT@cup.portal.com's message of Tue, 29 Dec 92 21:12:54 PST
- Message-ID: <JMC.92Dec29222737@SAIL.Stanford.EDU>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Reply-To: jmc@cs.Stanford.EDU
- Organization: Computer Science Department, Stanford University
- References: <n1348t@ofa123.fidonet.org> <72527@cup.portal.com>
- <1992Dec29.191524.2413@iti.org> <72597@cup.portal.com>
- Date: 29 Dec 92 22:27:37
- Lines: 18
-
- The reason Shuttle costs are so much more than projected is that the
- Shuttle requires this army to maintain it between flights. Hydrogen
- isn't much more expensive than expected, and I doubt the solid fuel
- is either. When the Shuttle was first proposed, the idea of operating
- it like an airline was part of the plan from the beginning. It
- turned out that the Shuttle operated too close to the limits of the
- materials and structures of which it was made. That's why it needs
- so much maintenance.
-
- If someone proposes a new reusable vehicle for going to earth orbit,
- it is reasonable to ask why its maintenance costs can be expected to
- be a lot less than those of the Shuttle. Any answer you get needs to
- be evaluated skeptically.
- --
- John McCarthy, Computer Science Department, Stanford, CA 94305
- *
- He who refuses to do arithmetic is doomed to talk nonsense.
-
-