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- Newsgroups: sci.space
- Path: sparky!uunet!hela.iti.org!aws
- From: aws@iti.org (Allen W. Sherzer)
- Subject: Re: DC vs Shuttle capabilities
- Message-ID: <1992Dec22.182600.29193@iti.org>
- Organization: Evil Geniuses for a Better Tomorrow
- References: <1992Dec14.175934.5993@iti.org> <ggm2ljr@rpi.edu> <ewright.724699264@convex.convex.com>
- Date: Tue, 22 Dec 1992 18:26:00 GMT
- Lines: 44
-
- In <ggm2ljr@rpi.edu> strider@clotho.acm.rpi.edu (Greg Moore) writes:
-
- > I think we differ big-time when it comes to DC-1. Allen seems
- >to me to be saying, "Things will work out, and this is how it will be."
-
- From a technical point of view I am saying that a fully reusable SSTO
- vehicle carrying a reasonable payload (10 to 20 K pounds) and operational
- costs of $10 to $29 million per flight *CAN* be built with available
- technology. I also believe that operational costs can drop to $1 to $5
- million range if utilization is high enough.
-
- I believe this partly from my own assessment and the fact that every
- assessment done has concluded that it is possible. Even the internal
- NASA assessment say it can be done and that it could save billions.
-
- Now this doesn't mean that DC-Y WILL work. The biggest problems however
- are managerial, not technical. Using conventional government procurement,
- it will be impossible to build SSTO. Using a commercial like process however
- should work.
-
- >I think that is the attitude that bothers me the most. That is the
- >exact same thign that was said with the Shuttle.
-
- That is a point well taken. It should tell people that we need to be
- very careful and make sure we learn from the mistakes of the Shuttle.
-
- There is every indication that the DC development team is doing exactly
- that. Shuttle pushed technology everywhere from engines to tiles; DC
- emphasises existing technology. Shuttle was designed as a complex
- vehicle; DC is designed to be simple. Shuttle was to be *THE* spaceship
- forever and ever; DC is A spaceship, first of many. Shuttle has four
- sets of engines using three different fuels; DC has two sets of engines
- using the same fuel (even the same tank).
-
- If your going to say it can't be done just because Shuttle failed is
- to fail to learn from history. It also condems us to sacrificing the
- final frontier to protect government pork.
-
- Allen
- --
- +---------------------------------------------------------------------------+
- | Allen W. Sherzer | "A great man is one who does nothing but leaves |
- | aws@iti.org | nothing undone" |
- +----------------------123 DAYS TO FIRST FLIGHT OF DCX----------------------+
-