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Apollo 11 Technical Crew Debriefing, Volume 1 (scan)

NASA via ibiblio · 1969-07-31 · 251 pages · text by 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. 15 …LIGHTS ARMSTRONG Launch vehicle lights, roll program, pitch program, roll complete were on time, as were…
  • p. 41 …Then, just as in the simulator, the DAP rolled itself out. It ceased its pitch rate…
  • p. 43 …I did have a slight roll misalignment. I knew I had a slight roll misalignment, but…
  • p. 48 …It definitely had a good roll to it moving away. ## CONFIDENTIAL
  • p. 63 …roll angle is unconstrained in that with large trunnion angles, the computer may pick a roll…
  • p. 64 …being furnished to me in regard to roll angles. However, I didn't. That's one…
  • p. 65 …What they meant was that the spacecraft did not have to be rolled in such a…
  • p. 66 …very large, and you have an obvious roll on its alignment in the reticle, then it…
  • p. 79 …We always used 0.3 deg/sec roll and we never tried the 0.1. It…
  • p. 111 …There is a constraint on 2-jet roll, 4-jet roll, and no-jet roll, depending…
  • p. 150 …While flying AOT, you depend on the other crewmember to assure you that the roll gimbal…
  • p. 158 …It was then that I clearly realized that we weren't rolling as fast as was…
  • p. 216 …The part that had been melted, separated, and rolled back or peeled back on the secondary…
  • p. 224 …d know what is inside a certain roll. In many cases, there is nothing in it…
  • p. 227 …When it rolled up, it had a tendency to sneak off to the side and crinkle…
  • p. 247 …Also, I could roll over on one side or on the other. I had the two…
  • p. 248 …more horizontal position or the capability to roll from one side to the other. That's…
## CONFIDENTIAL

It had been exposed to the boost environment, too. I don't know how stuff would get under there with the BPC on. The BPC doesn't leave until you're darn near in a vacuum. Despite that, I thought that perhaps there was some odor associated with the high temperature of boost that had somehow gotten through the BPC and through that little tunnel vent line into the tunnel area. It sure smelled, and it smelled a couple of days later coming up on LOI. When I went in to activate the LM, the odor was just as strong.

All these latches made. Latch number 6, which is the one that had acted up a little bit down at the Cape during tests, was the only one that needed one actuation to cock rather than two. Other than 6, all the others said that they were going to require two pulls to cock and they did. All that hardware worked well.

We followed the checklist. We extracted in CMC, FREE, and then went to DAP control and fired the aft thrusters for 3 seconds. We went to CMC and DAP control 5 seconds after spring actuations. Neil and I both read a memo put out by MPAD, saying that for some failure modes you weren't supposed to do that; instead use SCS control. Ken Mattingly and I spent a lot of time the last couple of days before the flight

## CONFIDENTIAL

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