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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

## ARMSTRONG

We have some pictures of the struts.

The part that had been melted, separated, and rolled back or peeled back on the secondary strut appeared as though it was a much more flimsy design then any other thermal covering on there. I don't think there is anything significant in the fact that part of the thermal coating that was higher up had separated, whereas the material lower down had not. I didn't notice anything peculiar about the vents. There didn't seem to be anything at all deposited on the surface from any of the vents underneath or from the oxidizer fuel vent up above.

ARMSTRONG The most pronounced insulation damage was on the front plus Z strut. Its being in deep shadow obviated the possibility of getting a good closeup picture in that dark environment.

ALDRIN I think the best pictures we got were of the minus Z strut.

## ARMSTRONG

There was less damage than on the examples we looked a preflight. Just the very outer layers were penetrated

ALDRIN From what I could see of the probes, they had just bent or broken at the upper attach point. I didn't observe that they had any other fractures in them. One of them on the minus Y strut was sticking almost straight up.

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.