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- Xref: sparky sci.space.shuttle:2960 sci.space:17578
- Newsgroups: sci.space.shuttle,sci.space
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- From: tombaker@world.std.com (Tom A Baker)
- Subject: Re: Apollo 10 LM (was Re: pre-fire Apollo schedule)
- Message-ID: <Bz9w8J.6Lv@world.std.com>
- Organization: Me, at The World Public Access UNIX, Brookline, MA
- References: <Byx2H4.8CB@zoo.toronto.edu> <1992Dec8.100407.1@fnala.fnal.gov> <ByyGp2.685@zoo.toronto.edu>
- Date: Mon, 14 Dec 1992 23:36:18 GMT
- Lines: 37
-
- In article <ByyGp2.685@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes:
- >In article <1992Dec8.100407.1@fnala.fnal.gov> higgins@fnala.fnal.gov (Bill Higgins-- Beam Jockey) writes:
- >>Henry, you imply that Apollo 10's LM couldn't actually land and
- >>return. Can you elaborate? This is the first I've heard of this.
-
- >talks about it. He says that the Apollo 10 LM *probably* could have
- >flown a lunar landing if some fuel had been offloaded to lighten it, but
- >the margins would have been slim and hard to predict. It would probably
- >
- >So, as actually flown the Apollo 10 LM was indeed a little too heavy.
-
- Scary. As I have often recalled, there was a subtle bug in the LM
- software that flew in the Apollo 10 mission. When in ascent mode, the
- LM was supposed to automatically stay in contact with the CSM by
- directional antenna. If it wasn't, then the LM automatically would
- do a "random tumble" to locate it. During Apollo 10's simulation of
- ascent, that started happening just at the beginning of the simulated
- ascent. Stafford yelled "Son of a bitch!", which we all heard on Earth
- a while before we found out the problem.
-
- I am not saying that would have happened (noflamesplease) as it is
- probable that the CSM *would* be locked in, and the LM commander would
- be manually overriding more tightly than Stafford was. But it does
- point up the extra risks of a "let's do it this time and surprise the
- russians" landing that might have been tried.
-
- (By the way, I remember discussing this with my circle at the time of the
- flight; at that point, the space race still seemed real.)
-
- tombaker
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