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- From: soc1070
- Subject: Re: Lunar "colony" reality check and Apollo fire
- Message-ID: <11NOV199208300719@vx.cis.umn.edu>
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- Organization: University of Minnesota CIS
- References: <1992Nov10.015030.8065@ee.ubc.ca> <roelle.721413660@uars_mag> <lg0co3INNh1i@appserv.Eng.Sun.COM> <BxIzDp.6q2@mentor.cc.purdue.edu>
- Date: Wed, 11 Nov 1992 13:30:00 GMT
- Lines: 41
-
-
- >First off, it was Apollo 12, and not Apollo 1, that caught fire. The cause
- >of the fire was indeed the overpressure of test of the O2. As it turned
- >out, what killed the astronauts was not the fire, but the velcro inside the
- >spacecraft.
- > Although the velcro was fireproof for the low 3.5 psi, and up to 5psi, the
- >overpressure tests of pure O2 made them quite flammable. Hell, at 16psi of
- >oxygen, damn near anything will burn. In the words of Mike Gray, author of
- >_Angle of Attack_, "Somehow, in the labyrinth of the organization charts, the
- >people who tested the spacecraft materials for flammability were never
- >connected to the people who knew that-- for a brief period at the beginning of
- >the moon trip-- the astronauts would be bathed in high-pressure oxygen."
- > The fire ignited the velcro under high-pressure, and the resultant toxic
- >fumes killed the astronauts within seconds.
- >
- >--
- >John Mechalas "I'm not an actor, but
- >mechalas@gn.ecn.purdue.edu I play one on TV."
- >Aero Engineering, Purdue University #include disclaimer.h
-
-
- I beg to differ. It was in fact Apollo 1, as many have pointed out. If you
- check your Apollo history, you will see that 8 circled the moon, 9 did
- LEO tests, 10 tested the LM in lunar orbit, 11 landed, 12 landed next to
- the Surveyor, 13 blew an oxygen tank on the way to the moon, etc.
-
- Secondly, the cause of the fire was never traced to any specific source.
- According to Micheal Collens in _Carrying The Fire_, the inside of the
- craft was so fried that a single cause could not be found; rather there
- were several *probable* causes that resulted in an almost complete redesign
- of the inside of the capsule.
-
- You were right that almost anything will burn at 16psi pure O2, even
- stainless steel. Unfortunatly for Grissom, White, and Chaffee, they didn't
- die of toxic fumes. It was the fire that did them.
-
- ------
- Tim Harincar Millions long for immortality
- Central Minnesota who don't know what to do with
- Association of Rocketry themselves on a rainy Sunday
- soc1070@vx.cis.umn.edu afternoon. -Susan Ertz
-