Documents / Official release
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.
“Cairo”4 pages
White 179 thrusters continued to fire throughout t he maneuver at interval s like there was indeed a signal coming from the Horizon Scan Mode . As the spacecraft started back down toward the horizon , I thought sure that the horizon scanner would catch the horizon , because a t this time the sun was no longer right on the horizon. However , we developed a slight amount of roll during the l ast 120 to 150 degrees of pitch, and as we went down through the horizon , we were out of limits in roll and Horizon Scan did not pick up the horizon. I then took over the spacecraft and maneuvered back to a position from which the Horizon Scan Mode could r eacquire and -put it in t his condit ion . It s t ayed locked on . Ed has a few notes here . We ' ll have him read his . About the only notes that I ma.de on .the scanner was tha t at sunset and sunrise it had a tendency to break lock. I have a note her€ that at 22: 22, at sunset with the sun right on the scanner, i . e . 90 degrees to the spacecraft , the scanner broke lock three different times . At 22 : 58 , a t sunrise , the scanner put in spurious inputs but was abl e t o control and didn ' t lose lock.
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.