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- Newsgroups: sci.space
- Path: sparky!uunet!hela.iti.org!aws
- From: aws@iti.org (Allen W. Sherzer)
- Subject: Re: Stupid Shut Cost arguements (was Re: Terminal Velocity
- Message-ID: <1992Dec30.145349.19318@iti.org>
- Organization: Evil Geniuses for a Better Tomorrow
- References: <72526@cup.portal.com> <1992Dec29.190820.1850@iti.org> <72596@cup.portal.com>
- Date: Wed, 30 Dec 1992 14:53:49 GMT
- Lines: 129
-
- In article <72596@cup.portal.com> BrianT@cup.portal.com (Brian Stuart Thorn) writes:
-
- >>Sorry for the misunderstanding. No, I suspect 10 flights a year is possible.
- >>I doubt 12 can be done without MAJOR changes.
-
- >>But given the very poor record of Shuttle performance to schedule, I assert
- >>the burden of proof is on you to show 12 can be done. I'll accept any two
- >>consecutive calendar years with 24 launches.
-
- > One year doesn't go a long way statistically, but 1992 had a pretty
- > good record.
-
- For eight flights. That doesn't mean an increase of 25 to 50 percent is
- easy.
-
- > Agreed, the proof is in the pudding. Alas, political pressures being
- > what they are, NASA is unlikely to get the chance to prove it.
-
- What exactly are these pressures you are talking about? As to wether
- these pressures exist or not is not relevant. The bottom line is that
- Shuttle can't fly (for whatever reason) much more than it is now.
-
- > Will sixteen launches in two years at least give you some cause
- > to believe that Shuttle is not yet working at maximum capacity?
-
- That's why I said ten flights.
-
- > By the way,
- > if Endeavour flies on January 13, that will be nine launches in a
- > twelve month period.
-
- Means nothing.
-
- >>A DC is simple and reliable enough that 50 flights a year is reasonable
-
- > Essentially the same thing was said in 1972 regarding Shuttle.
-
- True enough. So what are we to do? In these situations I like to look
- at the design of the vehicle, not worry about claims made by dis-similar
- vehicles in the past. When one builds a complex vehicle which pushes the
- technology everywhere, it comes as no suprise that it doesn't work very
- well. But when one looks at a simple vehicle which makes maximum use
- of exsiting technology it is a lot easier to expect success.
-
- > It wasn't true then, but this is the first time I've ever seen
- > you use the phrase "if DC works".
-
- Then you aren't reading my postings very carefully.
-
- > Heretofor it has been "there's no reason it won't work.
-
- I also say that. Both are true statements. To date nobody has proposed
- any real show stoppers to SSTO. Not you, not gary not NASA. Your matra
- of 'shuttle failed so DC will fail' simply isn't a good technical
- arguement.
-
- Now it you do want to see a good arguement against SSTO, see John
- Roberts recent posting. There he does a good job of identifying
- the risk areas and showing the technical problems.
-
- > As you just said, ten per year is 100% of Shuttle's capacity without
- > raising costs. So why is Shuttle flying only eight times per year?
-
- You need to ask NASA for the final answer. It could well be that I am
- wrong and 8 is the max flight rate.
-
- > That is the argument used to justify cancellation of all manned
- > space activities. Is that what you are suggesting, Allen?
-
- Manned space has a reputation for being horendously expensive. Currently
- it is but need not always be expensive. By blindly supporting vehicles
- which are so hugely expensive simply because they are manned we:
-
- 1. Give ammunition to our enemies who can point to Shuttle and argue that
- manned space is too expensive.
- 2. Stifle efforts to reduce costs.
- 3. Lure us into a false sense of complacency by thinking that progress
- is being made when in fact it isn't.
-
- I am a strong supporter of manned space and the current stagnation we
- are seeing distresses me. Seeing other supporters working to maintain
- that stagnation is even more distressing.
-
- > Your claims as to DC's performance before the thing ever flies
- > doesn't wow the public, either.
-
- I disagree. I was recently interviewed for an upcoming article on
- DC in a British newspaper. I have received requests from other
- papers as well. I know of other media interested in covering the
- DCX tests. Hundered of people have volunteered to meet with their
- representatives on this. These are not the actions of disinterested
- people.
-
- > I pointed out four recent high
- > tech space programs that failed to meet their goals.
-
- so what? You cannot conclude from that anything about any future
- program. Pick your favorite future effort. Do you think it will
- fail just because some past efforts failed?
-
- > unless we go buy Soyuz from Russia, what options do we have?
-
- I think that's a hell of a good option. It saves money and promotes
- commercial space. What more do we want?
-
- >>There isn't a payload in existance today which can't go up on either.
-
- > Some people say GRO and Hubble are examples, I'm not sure.
-
- The USAF has a Titan IV faring which is fully Shuttle compatible.
-
- > into LEO. Then you can dig up Delta facts and figures and justify
- > its construction.
-
- Sure.
-
- >>More of the same; I'll bet you $50 that it starts flying regularly. Well?
-
- > I'm sure it will too, my point is that it wasn't easy getting there.
-
- No disagreement. It may also be hard for DC. Let's find out.
-
- Allen
-
- --
- +---------------------------------------------------------------------------+
- | Allen W. Sherzer | "A great man is one who does nothing but leaves |
- | aws@iti.org | nothing undone" |
- +----------------------115 DAYS TO FIRST FLIGHT OF DCX----------------------+
-