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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. 30 …It was impossible to read an effect on any indicator in the cockpit. COLLINS This is…
  • p. 38 …the expected altitude was 174 and we read 176. The EMS was 3.3 plus. ARMSTRONG…
  • p. 39 …There's no way that the EMS could read 99.1 at docking. As I recall…
  • p. 40 ## CONFIDENTIAL Then I thrusted minus X until the DELTA-V counter read minus 100.5. I…
  • p. 46 …Neil and I both read a memo put out by MPAD, saying that for some failure…
  • p. 50 …We gave daily dosimeter readings, which as far as I'm concerned fall in a sort…
  • p. 51 …COLLINS And the dosimeter we just gave them a once-a-day reading on that dosimeter…
  • p. 68 …When you read me the numbers, you didn't note that I read star number 2…
  • p. 79 …The cabin temperature (translunar) was slightly warmer than we would like it, although the gage readings…
  • p. 130 …We had good helium pressure and read that out to MSFN. We went through the RCS…
  • p. 132 …the AGS, and give you an erroneous reading so you wouldn't pass. In any case…
  • p. 134 …There is a bad amount of data that the ground reads up to you in that…
  • p. 151 …They did approach the maximum numbers with a reading of approximately 94. Anyway, they weren't…
  • p. 169 …with time as evidenced by successive LPD readings. FCOD REP. Do you recall when you proceeded…
  • p. 170 …again, although at the time we were reading relatively low tank pressures. I think the OX…
  • p. 172 …We read the sine and cosine out of AGS (and I'm sure they copied that…
  • p. 175 …we were going to launch, so we read through the remainder of the simulated countdown and…
  • p. 235 …same exercises such as pressure-integrity check, reading the cabin down, and configuring the ECS. I…
  • p. 236 …We used a sequence of marking that involved an onboard averaging of five successive cursive readings…
## CONFIDENTIAL

substellar point. But when you are close to the Earth, and the Earth is very large, and you have an obvious roll on its alignment in the reticle, then it requires a very large maneuver to maneuver the spacecraft over to the substellar point. I'd be happy to draw it on a blackboard some other time for the proper people. I was reluctant to make these large maneuvers, because I thought something was wrong. And they kept saying go ahead and mark, that it was all right, and so I did take some marks and the DELTA-R's and the DELTA-V's were excessive. I don't know what else to say now. I'd sort of like to get a blackboard and talk this over with flight planning and with the people from MPAD, if necessary, and see where we went wrong. It's my fault in that I didn't get all the interested parties and sit down and go through step by step and maneuver by maneuver exactly where we were going to go and what we were going to do.

I think it's one of these areas that it would have been nice maybe, for you anyway, to have had an abbreviated simulation with Houston as part of our training. One big problem there is that you just can't always count on the simulator giving enough fidelity.

## 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.