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From: philipl@bronze.UUCP (Philip Lantz)
Newsgroups: net.columbia
Subject: Re: Hydrogen Reserve on STS 9
Message-ID: <849@bronze.UUCP>
Date: Sat, 15-Oct-83 13:24:20 EDT
Article-I.D.: bronze.849
Posted: Sat Oct 15 13:24:20 1983
Date-Received: Tue, 18-Oct-83 00:39:22 EDT
Lines: 14

Two pounds of hydrogen sounds like an awfully small reserve.  (I
imagine it did to Mark and to the people at AW&ST, or they wouldn't
have mentioned it!)  Eight people can easily drink 2 pounds of H as
water a day!  (Figure 1 liter/man/day = 0.24 lb of H per man per day.
I don't suppose they recover any of that?)

What is the total rate of usage, and what all is it used for?  If
they only use a couple pounds a day, two pounds of reserve is
reasonable.  I seem to remember that they don't use any for in-orbit
maneuvering.  Do they use it for retro, or anything other than
electricity and water?

Philip Lantz
tektronix!bronze!philipl