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- Newsgroups: sci.space
- Path: sparky!uunet!usc!wupost!cs.utexas.edu!sun-barr!ames!agate!usenet.ins.cwru.edu!eagle!elwood
- From: vento@mars.lerc.nasa.gov (Dan Vento)
- Subject: Re: Space suit research?
- Message-ID: <vento-201192160142@elwood.lerc.nasa.gov>
- Followup-To: sci.space
- Sender: news@eagle.lerc.nasa.gov
- Nntp-Posting-Host: elwood.lerc.nasa.gov
- Organization: NASA Lewis Research Center
- References: <BxqsoH.MBq@access.digex.com> <BxsAGu.919@zoo.toronto.edu> <1992Nov16.180102.20839@eos.arc.nasa.gov> <1992Nov17.033954.4419@ucsu.Colorado.EDU>
- Distribution: usa
- Date: Fri, 20 Nov 1992 21:07:06 GMT
- Lines: 25
-
- In article <1992Nov17.033954.4419@ucsu.Colorado.EDU>,
- fcrary@ucsu.Colorado.EDU (Frank Crary) wrote:
- >
- > Actually, Vail or Aspen at ~10 psi average, would be a better example
- > than Denver (~12 psi...) I have never understood why NASA doesn't
- > consider this fact relevant. I know the reason the Case for Mars IV
- > conference endorsed 14.5psi for Mars missions: NASA apparently likes
- > it and will probably be using that pressure in many existing systems
- > by the time a Mars mission is launched. Having two different pressures
- > is a _major_ pain, so the general consensus was to stick to 14.5psi...
- >
- > Frank Crary
- > CU Boulder
-
-
- Another reason that NASA does not like low pressure high oxygen (e.g. 5 psi
- pure oxygen) is the danger of fires in the crew cabin while in orbit. Most
- materials don't burn easily in low g in "normal" air. Enriched oxygen
- environments can be a serious problem for materials flammability. Needless
- to say, this is a big driver in any decisions to be made about the cabin
- environment for manned flight.
-
-
- Dan Vento
- vento@mars.lerc.nasa.gov
-