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NASAJune 12, 2026PURSUE Release 03 (June 2026)

NASA-UAP-D018, Gemini 4 Experiment Debriefing, 1967

Low Earth Orbit

Summary

Gemini IV was the second crewed mission of the Gemini series. Astronauts James McDivitt and Edward White successfully completed the four-day flight between June 3 and June 7, 1965.

Key highlights

  • The GT-4 mission aims to demonstrate manned space flight for four days.p.11

    This GT-4 mission is intended to further demonstrate manned space flight for a period of four days.
  • Three additional flight activities include extravehicular activities and rendezvous demonstrations.p.3

    Demonstration of extravehicular activities (EVA) using a 25 foot umbilical.
  • The G4C spacesuit features a triple visor and improved thermal protection.p.4

    The G4C suit has the following new features: a triple overvisor.
  • The mission will utilize a new zero-g Integral Propulsion Unit for maneuvering.p.7

    The extravehicular maneuvering will be accomplished using a zero g Integral Propulsion (ZIP) Unit.
  • The spacecraft will reenter and land approximately 400 miles southwest of Bermuda.p.8

    the spacecraft will reenter and touchdown approximately 400 miles southwest of Bermuda.

Source

Department of War — PURSUE / NASA
Public domain (US Government work)
No known restrictions

View on Department of War — PURSUE / NASA

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