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- Newsgroups: sci.space
- Path: sparky!uunet!boulder!ucsu!ucsu.Colorado.EDU!fcrary
- From: fcrary@ucsu.Colorado.EDU (Frank Crary)
- Subject: Re: Sabatier Reactors.
- Message-ID: <1993Jan25.162517.25657@ucsu.Colorado.EDU>
- Sender: news@ucsu.Colorado.EDU (USENET News System)
- Nntp-Posting-Host: ucsu.colorado.edu
- Organization: University of Colorado, Boulder
- References: <1jutp0INNacf@digex.digex.com> <24JAN199320503892@judy.uh.edu>
- Date: Mon, 25 Jan 1993 16:25:17 GMT
- Lines: 24
-
- In article <24JAN199320503892@judy.uh.edu> wingo%cspara.decnet@Fedex.Msfc.Nasa.Gov writes:
- >I wonder if people like this are just trying to provoke me? The last I heard
- >was that SSF was going to use LOX/H2 thrusters for orbit maintainance.
- >Am I wrong? If so, then they are MORE risky than hydrazine.
-
- Freedom will use hydrazine. The original plan was to use hydrogen/oxygen
- rockets, with long-term fuel storage made possible by storing water
- and electralisizing (sp?) it as needed. Unfortunately, the available
- power was less than expected, so hydrozine will be used instead.
-
- >Also for your information, NASA has been flying station precursors for
- >over ten years now. They are called Spacelab. Also the new SpaceHab will
- >be flying on STS-57 in April. These are dependent on Shuttle for
- >utilities, but are doing the most important SSF precursor work, which is
- >the experiments for microgravity.
-
- If the initial microgravity experiments on Freedom were a failure,
- they could be redesigned and replaced. If the station can not provide
- power, life support, utilities, etc..., the station will be a failure.
- Therefore, the mission critical parts of Freedom haven't been flown or
- tested.
-
- Frank Crary
- CU Boulder
-