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- Newsgroups: sci.space
- Path: sparky!uunet!nwnexus!van-bc!cs.ubc.ca!fs1.ee.ubc.ca!davem
- From: davem@ee.ubc.ca (david michelson)
- Subject: Re: Space suit research?
- Message-ID: <1992Nov18.193352.21615@ee.ubc.ca>
- Organization: University of BC, Electrical Engineering
- References: <BxwA7z.LsH.1@cs.cmu.edu>
- Distribution: sci
- Date: Wed, 18 Nov 1992 19:33:52 GMT
- Lines: 34
-
- In article <BxwA7z.LsH.1@cs.cmu.edu> roberts@cmr.ncsl.nist.gov (John Roberts) writes:
- >
- >I believe the astronauts normally moved between the Command Module and the
- >Lunar Module via a pressurized docking adapter. However, while two of the
- >astronauts were on the moon, a camera mounted on the Service Module was
- >busy taking beautiful stereo aerial photos of the lunar surface. When the
- >astronauts came back from the moon, one of them had to do an EVA to
- >retrieve the film. This is depicted in the NASA Select video of Apollo 16
- >(a great video, if you ever have a chance to see it).
- >
- >I'm not sure whether this was done before or after unsealing the Lunar Module -
- >Command Module adapter - I would guess before, so the Command Module would
- >not have to be depressurized.
-
- The film cassettes were retrieved during the trans-earth coast -- long after
- the LM ascent stage had been jettisoned.
-
- The EVAs were conducted through the main CM hatch by the CM pilot.
-
- >
- >Question: was the Lunar Module normally pressurized before takeoff? And
- >after the film EVA, was it pressurized again before unsealing the docking
- >adapter?
-
- The LM was certainly not pumped down to vacuum before liftoff :-) I suspect
- that some sort of pressure equalization valve was used to reduce the pressure
- from 15 to 5 psi during ascent as was done in the CM. But I don't recall
- reading anything about that before...
-
- --
- Dave Michelson
- davem@ee.ubc.ca
-
-
-