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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.

Open the PDF at page 44 Original source ↗

“Roll”17 pages

  • 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

points during the docking. It is discernible if you really look closely. At the end when you need it, it's more visible than it is 20 to 30 feet out. I would say that the COAS is marginable, but satisfactory.

5. 24 CABIN PURGE AND LM/CSM PRESSURE EQUALIZATION

## COLLINS

I believe all that went just about exactly as per the numbers

## ALDRIN

We went PRESSURE EQUALIZATION valve to OPEN. Where it says go to A, we went to 3.8. That's where it stabilized. Repres sure $ \mathrm{O}_{2} $ only brought it up to 4.4. That gave us a DELTA-P of near zero. There wasn't any cycling back and forth. There was just one cycle open and that's as far as it went.

LLINS That cycling back and forth only applies if you have a problem when you don't have in the full volume of the LM.

5. 25 CONFIGURING FOR LM EJECTION, DOCKING PROBE,VENTING LATCHES, UMBILICALS, POWER, AND TEMPERATURE

## COLLINS

Okay. The only funny here was when I opened the hatch to get into the tunnel, there was a peculiar odor in the tunnel. This odor was not exactly the same as burned electrical insulation.

## ALDRIN

You commented that the wiring in the cables seemed to retain this odor.

## 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.