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Posting-Version: version B 2.10.2 9/18/84; site ames.UUCP
Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!sdcrdcf!hplabs!nsc!ames!al
From: al@ames.UUCP (Al Globus)
Newsgroups: net.space
Subject: Re: Orphaned Response
Message-ID: <711@ames.UUCP>
Date: Tue, 18-Dec-84 21:42:48 EST
Article-I.D.: ames.711
Posted: Tue Dec 18 21:42:48 1984
Date-Received: Sat, 22-Dec-84 00:48:31 EST
References: <-465400@utzoo.UUCP> <73300002@hpfclq.UUCP>
Organization: NASA-Ames Research Center, Mtn. View, CA
Lines: 15

> Last I heard (late 1979), the internal pressure on the Shuttle was
> ~10 psi to keep mass requirements down without sacrificing comfort.
> Those that I worked with (at the time) said that the pressure was going 
> to be roughly equivalent to an altitude of 6500 ft.  Was that misinformation?
> 
> al "the memory goes first" stone
> hpfcla!al
> 
>   me write this.>

Shuttle is kept at 14.7 psi (normal sea level pressure) most of the time.
On at least some space walks, pressure is reduced to shorten pre-breathing
requirements for space walkers.  I think it's reduced to about 10 psi, but 
I'm not sure.