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From: yee@ucbarpa.berkeley.edu.BERKELEY.EDU (Peter E. Yee)
Newsgroups: net.columbia
Subject: Re: Challenger SRBs
Message-ID: <11642@ucbvax.BERKELEY.EDU>
Date: Fri, 31-Jan-86 22:12:51 EST
Article-I.D.: ucbvax.11642
Posted: Fri Jan 31 22:12:51 1986
Date-Received: Sat, 1-Feb-86 20:28:28 EST
References: <4270@mhuxd.UUCP> <437@umich.UUCP>
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Reply-To: yee@ucbarpa.berkeley.edu.UUCP (Peter E. Yee)
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In article <437@umich.UUCP> cja@umich.UUCP (Charles J. Antonelli) writes:
>I would be surprised if the SRBs were capable of independent guidance.
>They have no control surfaces, and I doubt the SRB nozzles are on gimbals
>like those of the main engines.

According to the Space Shuttle Operator's Manual (a source whose veracity
I can't vouch for), the SRB nozzle's can gimbal six degrees.  Not an
overwhelming amount of control, but they are adjustable.


						-Peter Yee
						..ucbvax!yee
						yee@ucbarpa.BERKELEY.EDU