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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.
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## CONFIDENTIAL ## 10.17 PLSS AND OPS PREPARATION AND DONNING ## ALDRIN The heaters tested out. Both lights came on, pressures regulated at very close to 3.7. Then when it came time to unstow the hoses, the pressures had dropped down to just about zero. ARMSTRONG Yes. They were below 25. ## ALDRIN Overshoes went on quite easily. We put the antifog on as soon as we got the kit out instead of waiting until a little bit later. I think that maybe there were two things that brought that about. One was that we weren't really sure it was going to appear later in the checklist, and we wanted to make sure we had that. The other was, in training, we wanted to avoid as many activities as we could with the PLSS on our back because it was very uncomfortable doing any additional exercises in one g. We did find, however, that it was quite comfortable, even without the shoulder pads, to have the PLSS mounted on your back. The mass of it was not at all objectionable. It did require moving around methodically and very slowly to avoid banging into things — no getting around it. You just couldn't always tell what the back of the PLSS or the OPS might be in contact with at any particular time. ## CONFIDENTIAL
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