Mercury astronaut candidate Virgil I "Gus" Grissom undergoes equilibrium chair test at Wright-Patterson AFB
Ohio United States USA Date:1959, March Duration:5 min 15 sec Sound:NO SOUND
Prospective NASA Project Mercury Astronaut Captain Virgil I. "Gus" Grissom gets on to equilibrium chair for test at Wright-Patterson Air Force Base, Ohio. Doctor speaks to the astronaut. Subject is seated on a chair which rotates simultaneously on two axis. He maintains the chair on an even keel by means of a control stick with and without vibration, normally and blindfolded.
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