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- From: roberts@cmr.ncsl.nist.gov (John Roberts)
- Subject: Re: Shuttle computers
- Message-ID: <By2w0x.AAG.1@cs.cmu.edu>
- X-Added: Forwarded by Space Digest
- Sender: news+@cs.cmu.edu
- Organization: National Institute of Standards and Technology formerly National Bureau of Standards
- Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
- Distribution: sci
- Date: Sat, 21 Nov 1992 18:14:27 GMT
- Approved: bboard-news_gateway
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-
- -From: amon@elegabalus.cs.qub.ac.uk
- -Subject: Re: Shuttle computers
- -Date: 20 Nov 92 14:31:48 GMT
-
- -John:
-
- -TO my knowledge they only load the machines from tape on board. They
- -do have the ability to override and to take out machines manually via
- -a set of buttons at the front of the shuttle. I think they are in the
- -center position, reachable from either left or right hand seat.
-
- -I'd have to pull out my copy of the control panel documentation (the
- -REAL thing :-) to be sure.
-
- I wonder if they've ever considered a system by which a spare tape can be
- written by instructions from the ground, for checking and subsequent loading
- into the GPCs. That could be useful if (for instance) one of the flight
- control surfaces is damaged in an unanticipated way, and the basic flight
- protocol has to be modified. Writing to a tape would overcome some of the
- objections to direct loading of programs from the ground.
-
- John Roberts
- roberts@cmr.ncsl.nist.gov
-
-