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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.
Read from the scan by GLM-OCR; expect the odd misread word.
## CONFIDENTIAL So, I think it's a correct decision to let the ground switch between opposites B and D OMNI antenna rather than having us switch manually A, B, C, D; but I guess the ground needs some refinement in that procedure because we did have a number of cases of COMM dropouts, and later on in lunar orbit, it was even more so. ## 6.12 PREFERRED PTC MODE AND TECHNIQUE FOR INITIATION There are all sorts of real varied funnies in the checklist (page L9-6) for how to get into PTC. Now, just for example, during the period when you are waiting for the thruster firing activity to quiet down, there's a 20-minute nominal wait period for thruster firing to diminish. And for instance, if the crew wants to see how the thruster firing activity is coming along, the way of verification is VERB 16. NOUN 20, monitoring the gimbal angle, and watching the lack of change in the gimbal angles. Yet, if you do that and leave VERB 16 NOUN 20 displayed on the DSKY, when you proceed 8 or 10 steps later to the point where you start to spin the spacecraft up, instead of getting 0.3 deg/sec rate, you will get a rate in excess of 1 deg/sec. And this fact is not well known. This is something that we found in the simulator shortly before the flight and penciled into the checklist. ## CONFIDENTIAL
Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 251 pages are in the text index: search them above, or from the library's search.