Project Mercury astronaut candidate Hal R. Crandall rides Equilibrium Chair at Wright-Patterson Air Force Base, Ohio.
Ohio United States USA Date:1959, February Duration:2 min 1 sec Sound:NO SOUND
NASA Project Mercury astronaut candidate Lt. Hal R. Crandall, USN, undergoes equilibrium and vibration stress test at Wright-Patterson Air Force Base, Ohio. He must keep the chair upright while blind-folded, and the chair vibrates at a high-frequency.
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