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From: umapu02@sund.cc.ic.ac.uk (D.A.G. Gillies   Supvsr  Dr K.J. Bignell)
Newsgroups: sci.space.shuttle
Subject: Re: Throttle up to 104%
Message-ID: <1990Jun7.171849.10541@cc.ic.ac.uk>
Date: 7 Jun 90 17:18:49 GMT
References: <990@gazette.bcm.tmc.edu>
Sender: news@cc.ic.ac.uk (USENET News System)
Reply-To: umapu02@cc.ic.ac.uk (David Gillies)
Organization: Imperial College Computer Center, London, UK
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In article <990@gazette.bcm.tmc.edu> skywalker@dino.qci.bioch.bcm.tmc.edu (Timothy B. Reynolds) writes:
>On all the shuttle flights @ around 50 + MET into
>the flight, Houston gives the command to go at throttle up
>to 104%. My question is how can you throttle up past 100% ???
>ALso what is MAX-Q
>
>Someone please explain....
Dunno what MAX-Q is (hip-hop singer ?),but 100% is the nominal rated working
thrust beyond which it's not a good idea to go for too long.However pushing it
hard (ie >100%) for a while doesn't hurt.It's a bit like the reheat on a jet
airplane - that gives more thrust than rated nominal.I think it's silly
terminology though.

                  David Gillies (umapu02@cc.ic.ac.uk)