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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 Well, they may also be referring to P30 and P40 sequence and so on. And it was our intention to do those very carefully in just the way that they are detailed in the procedures; not because the burn was all that important and we compensated for it if we made an error, but rather because the analysis of that burn on the ground was going to be the thing that determined that we have a good SPS for LOI. Because that was the case, we wanted the ground not to be at all confused about what procedures we would use and just how the burn was made. So we tried to stick precisely with the same procedures you'd use for an SPS burn. ## COLLINS In general, I thought all the P30's and P40's worked out very smoothly. ## 6.16 MIDCOURSE CORRECTION ## ARMSTRONG Well, the first midcourse was cancelled to allow the DELTA-V value to grow in size so that the second midcourse correction would be reasonably longer, allowing engine operation to be well stabilized and more accurately analyzed on the ground. ## ALDRIN Midcourse 2 was 21.3 feet per second. ## CONFIDENTIAL
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