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From: philb@maya.gwd.tek.com (Phil Biehl)
Newsgroups: sci.space.shuttle
Subject: Re: Throttling the Challenger
Message-ID: <9298@tekecs.TEK.COM>
Date: Tue, 27-Oct-87 13:24:45 EST
Article-I.D.: tekecs.9298
Posted: Tue Oct 27 13:24:45 1987
Date-Received: Fri, 30-Oct-87 05:53:14 EST
References: <187@scdpyr.UUCP> <5270001@hpisof0.HP.COM>
Sender: nobody@tekecs.TEK.COM
Reply-To: philb@maya.UUCP (Phil Biehl)
Organization: Tektronix, Inc., Wilsonville, OR
Lines: 23

In article <5270001@hpisof0.HP.COM> campbelr@hpisof0.HP.COM (Bob Campbell) writes:
>SSME Specifications     (Full power level)
.
.
>Flowrates:
>   Total                 1,130 lb/s     22,557 gpm
>   Hydrogen                160 lb/s     16,436 gpm
>   Oxygen                  970 lb/s      6,121 gpm

Does the above flowrates indicate tha actual combustion mixture present at the
combustion chamber? If so then why is there a greater ratio than 2 parts H to
one part O? I would think that the extra hydrogen would be unconsumed making
the engine less efficient than it could be... What am I missing?



Phil Biehl

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