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- From: steinly@topaz.ucsc.edu (Steinn Sigurdsson)
- Newsgroups: sci.space.shuttle,sci.space
- Subject: Re: Shuttle replacement
- Message-ID: <STEINLY.92Nov19135044@topaz.ucsc.edu>
- Date: 19 Nov 92 21:50:44 GMT
- References: <1992Nov17.194901.16883@aio.jsc.nasa.gov> <1992Nov19.073340.27278@netcom.com>
- <1992Nov19.202302.5796@iti.org>
- Organization: Lick Observatory/UCO
- Lines: 60
- NNTP-Posting-Host: topaz.ucsc.edu
- In-reply-to: aws@iti.org's message of 19 Nov 92 20:23:02 GMT
-
- In article <1992Nov19.202302.5796@iti.org> aws@iti.org (Allen W. Sherzer) writes:
-
-
- In article <1992Nov19.073340.27278@netcom.com> hage@netcom.com (Carl Hage) writes:
-
- >Although Gore was flamed here for this speech, it would seem to me that he
- >could be a very strong supporter of SSTO.
-
- Let's hope so.
-
- >Development of DC-X has been relatively low cost, but can you convince
- >everyone that DC-1 will be cheap? Are the cost predictions realistic?
-
- No, you can never convince everybody. However, the cost predictions are
- the best available. If nothing else the fact that the design and construction
- of DC-X is on time and on budget gives a good indication that their cost
- estimators know what they are talking about.
-
- ...
-
- >Claims of $1M or even $10M launch costs seem too low to be believable.
-
- Only circumstantial. If the models are correct than DC will fly for
- $1 to $10M per flight. However we need DC-X to verify the models.
-
- However the circumstantial evidence supports it. After all, the cost and
- part count of a launcher is about the same as a commercial airliner. The
- rest is up to the technology and to date nobody questions that it can
- be done as far as the technology is concerned.
-
- While I'm strongly in favour of the DC-X/Y/1(-2-3!) this causes me
- a little concern. I'm willing to believe that the DCs can be developed
- and constructed on budget as long as they can avoid some appropriations
- nightmare, but the operation costs do seem quite optimistic, in
- particular I'd have thought the early years operation would be higher
- while ground support learned some maintenance procedures and
- operational experience was developed on what needs inspection and
- refurbishing between flights? I just don't see any way around that,
- are the DCs really that much simpler?
-
- >For point 3, there seems to be a particular timetable in mind for
- >producing DC-X/Y/1. How does that timetable compare with the alternatives?
-
- An operational DC-1 should be flying in 97 IF (this is a big if) we can
- get Congress to fund it properly. BTW, since we are only looking at $1B
- per year over about four years this is an achieveable goal provided
- supporters put and keep pressure on Congress.
-
- Hmm, didn't you just say that Congress should just fund the DC-X,Y?
- I thought after prototyping McD would pay for construction of the
- production models! ;-)
-
- +---------------------------------------------------------------------------+
- | aws@iti.org | nothing undone" |
- +----------------------156 DAYS TO FIRST FLIGHT OF DCX----------------------+
-
- | Steinn Sigurdsson |I saw two shooting stars last night |
- | Lick Observatory |I wished on them but they were only satellites |
- | steinly@lick.ucsc.edu |Is it wrong to wish on space hardware? |
- | "standard disclaimer" |I wish, I wish, I wish you'd care - B.B. 1983 |
-