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- Path: sparky!uunet!portal!cup.portal.com!BrianT
- From: BrianT@cup.portal.com (Brian Stuart Thorn)
- Newsgroups: sci.space
- Subject: Re: Stupid Shut Cost arguements (was Re: Terminal Velocity
- Message-ID: <72597@cup.portal.com>
- Date: Tue, 29 Dec 92 21:12:54 PST
- Organization: The Portal System (TM)
- References: <n1348t@ofa123.fidonet.org> <72527@cup.portal.com>
- <1992Dec29.191524.2413@iti.org>
- Lines: 85
-
- >In article <72527@cup.portal.com> BrianT@cup.portal.com (Brian Stuart Thorn) w
- r
- >ites:
- >
- >> Space Shuttle is also the only system designed to be used repeatedly,
- >
- >The design goal was to build a vehicle which would provide cheap, routine
- >access to space. Reusability was simply the method selected. Shuttle failed
- >all of its major objectives.
-
- I would add the word 'manned' to that first sentence. Don't forget
- this unique capability.
-
- >> is the only system capable of returning very heavy payloads to Earth,
- >
- >Considering that there are no heavy payloads to return to Earth, this
- >cannot be considered an advantage. Especially for the billions it costs
- >us.
-
- GRO and UARS are both candidates for return to earth. LDEF and
- EURECA already did/are flying. EURECA is the biggest satellite
- yet built outside the US or USSR.
-
- The Hubble repair could still prove too much for orbiting
- astronauts and thus require return to Earth for mirror replacement,
- although this is unlikely. The decision not to return heavy payloads
- is not an engineering decision.
-
- >> Shuttle is also as much a technology demonstrator as it is a launch
- >> system.
- >
- >Not according to NASA. To them Shuttle is *THE* Space Transportation
- >System. To them it is an operational vehicle.
-
- True enough, but it was a Space Transportation System which used
- technology and ideas never before flown. It was as much a new way
- of thinking as the DC is today. All I'm saying is that Shuttle
- did not meet its objectives, so don't be so sure about DC.
-
- >> That the technology proved to costly to replace the expendable
- >> market is beside the point.
- >
- >Execpt that it's function WAS to replace expendables.
-
- No it wasn't, that came along because NASA had to justify the
- Shuttle's existence. They would have been perfectly happy
- flying only Spacelabs and building Freedom, but politicians
- demanded that it do everything. True though, that NASA said
- 'okay'.
-
- >For a long time it even did replace expendables. That was because the
- >satellite makers found a bunch of suckers willing to fork over the
- >subsidies.
-
- As do Ariane customers today, and granddaddy of them all looks
- like the Russians selling Proton launches. Cut rate, cheap.
-
- >BTW, another accomplishment of Shuttle was to turn over 60% of the free
- >world launch market to Airiane. Funny how Shuttle supporters never
- >mention that one.
-
- A few weeks ago I mentioned one way that we could have kept some of
- that market in the U.S. until NLS, DC or whatever was ready. You
- said that it (maintaining Shuttle launches of commercial payloads)
- was too costly. Maybe so (definitely so) but those subsidies would
- have at least kept customers in the U.S. instead of going to France.
- Then when DC was ready (earlier than currently projected, thanks to
- no wasted efforts on Atlas II, Titan IV et al.) we would still have
- a working relationship with those customers to sell them DC.
-
- In any case, if General Dynamics resurrected Atlas, Martin resurrected
- the MOL solids for Titan IV, and MD upgraded Delta, what was to stop
- them from developing a brand new system? Why wasn't DC-X built in 1983
- instead of 1993? It was clear back then that Shuttle was neither
- cheaper nor more reliable than the expendables. Afterall, isn't it
- your argument that the next generation of boosters be a commerical
- endeavor? What is it they say about building a better mousetrap?
-
- -Brian
-
- -------------------------------------------------------------------------
- Brian S. Thorn "If ignorance is bliss,
- BrianT@cup.portal.com this must be heaven."
- -Diane Chambers, "Cheers"
- -------------------------------------------------------------------------
-