Documents / Official release

Preliminary Gemini 4 Crew Debriefing, Part II, 1965

National Aeronautics and Space Administration · 1965-06-09 · 290 pages · text from the file's own layer

This is a preliminary transcript of Part II of the Gemini 4 (GT-4) flight crew debriefing, prepared by NASA's Spacecraft Operations Branch, Flight Crew Support Division, and dated June 18, 1965. The debriefing began aboard the recovery ship USS Wasp and ended at the Manned Spacecraft Center. In it, astronauts McDivitt and White discuss how the spacecraft systems performed, including the platform, OAMS, RCS and control modes. They also cover operational checks, visual sightings, experiments, mission planning and training, and give recommendations for future crews.

From the source:Release of 2026-06-12 Incident: 6/9/65, North Atlantic Ocean. This document is a preliminary transcript (Part II) derived from voice recordings of the Gemini 4 flight crew debriefing taken aboard the recovery ship, USS Wasp, on June 9, 1965. Part II of this document contains the “Visual Sightings” section of the debriefing (pages 196-224), where astronauts James McDivitt and Edward White describe their observations while aboard the spacecraft.

  • p. 239 …y in the manner that was de.mon@trated but by holding on to one end…
222
White
McDivitt
White
notes. Ed tended to use different types of
horizons, dependent upon the type of filter he
had on. Why don't you discuss that a little bit~
I tended to feel that the bottom of the bright
air glow layer gave me a little finer defined
horizon for a no-filter operation . When I put
the blue filter on, though, I didn ' t have much
horizon at all. When I put the green filter on,
it gave me, as far as the top of the air glow is
concerned, a better horizon to measure to. I
thought that the horizon was certainly not a
very defined point to measure to, and I think
accuracy would be lost in trying to measure to
a horizon like this . It 's just pl ain hard to
take a fuzzy old horizon and try to make an
accurate measure to it . That 's exactly the kind
of horizon that you've got at night .
I concur. There must have been at least a couple
of minutes of fuzziness in that horizon , and I
don't think that you would ever expect to
measure to the horizon within a couple of
minutes. Do you?
No. You'd have to calibrate yourself down pretty
COt~FIDE~~TIAL

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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 290 pages are in the text index: search them above, or from the library's search.