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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.
# CONFIDENTIAL think it needs to be pursued exhaustively in light of the ease of adaptation. ## ALDRIN Moving around is very natural. Some attention must be paid to the mass that you have in the suit and also to the mass of the PLSS that is on your back. I think we anticipated this adequately, and the fact that we did have a sizable mass mounted to the rear was not detrimental to moving around. ## ARMSTRONG ## 10.26 WALKING Buzz did more in that area than I did. I would say that balance was not difficult; however, I did some fairly high jumps and found that there was a tendency to tip over backward on a high jump. One time I came close to falling and decided that was enough of that. ## ALDRIN There is no doubt that it was much easier to reach that neutral point by just leaning back slightly than it was leaning forward. I think the happy medium was to lean forward more than we did. It was more comfortable for us to stand erect than to lean forward to be at that absolute neutral point. The pogo tends to give you the impression that most of your moving around will be the ## CONFIDENTIAL
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