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From: sw@cbnewsl.att.com (Stuart Warmink)
Newsgroups: sci.space.shuttle
Subject: Re: Shuttle Status Report 5/24/91
Summary: no need for sensors?!
Message-ID: <1991May28.122928.20347@cbnewsl.att.com>
Date: 28 May 91 12:29:28 GMT
References: <1991May25.023009.4567@rs6000.cmp.ilstu.edu>
Organization: Interface Systems @ Bell Labs
Lines: 19

> WORK COMPLETED:
> - Installation of plugs instead of temperature transducers in the
> main propulsion system liquid hydrogen main engine inlets.  Offi-
> cials determined that these transducers  can  be  eliminated  and
> still  meet  the  launch  commit  criteria  and flight rules.  An
> analysis is continuing to determine if the liquid oxygen tempera-
> ture transducers can also be eliminated.

This seems kind of strange. Either the sensors are needed or they are not.
If they are not, why scrub the mission when they are faulty? (OK, so this
time they were cracked) If they are needed - presumably to guard against 
dangerously high temperatures - then why fly without them?

A further analysis in continuing to determine if 4 of the 5 flight control
computers can also be eliminated :-)
-- 
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Stuart Warmink, Whippany, NJ, USA  |  sw@cbnewsl.ATT.COM  |       Hi!
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