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Apollo 11 Technical Crew Debriefing, Volume 1 (scan)

NASA via ibiblio · 1969-07-31 · 251 pages · text by GLM-OCR

This is Volume 1 of NASA's Apollo 11 Technical Crew Debriefing, dated July 31, 1969. The Mission Operations Branch of the Flight Crew Support Division at the Manned Spacecraft Center in Houston prepared it, and it was originally classified Confidential. In it Armstrong, Aldrin and Collins go phase by phase through suiting, launch, powered flight, Earth orbit and lunar surface activities. They comment on suit fit, vibration, checklists, lunar dust, footing and poor sleeping conditions in the lunar module. A section titled Visual Sightings appears in the table of contents.

  • p. 130 …it should go barberpole, it would go gray. Then, as you released, it would go to…
  • p. 178 …fade, and it began to be more gray. As we looked back as far as we…
  • p. 179 …ALDRIN When illuminated, it did have a gray appearance, very light gray. ARMSTRONG Wouldn't you…

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## CONFIDENTIAL

them were barberpoled as we expected. After pressurization, the procedure was to go through and cycle each valve to its present position - where it should be. So, I went to the ascent feed 1's and went open, and nothing changed; it stayed barberpole. As soon as I went to number 2, the closed position which would put them barberpole, they both went direct. They went to the opposite position that you would not expect. When I released it, they went back to barberpole again. I think the same thing happened to the shutoff valves. When you'd move it to the closed position, where it should go barberpole, it would go gray. Then, as you released, it would go to its present position. You can't tell the position of the valve until you release it. As a matter of fact, it'll give you the opposite indication in some cases.

We had good helium pressure and read that out to MSFN. We went through the RCS checkout. We had one quad, upper right-hand one, that stuck two different times in the red indication.

When going through the cold fire, we were getting all different stories from the ground as to whether these

CONFIDENTIAL

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Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 251 pages are in the text index: search them above, or from the library's search.