Human Performance Under Acceleration: Actuation of Ejection Seat Lower Firing Control.
Final rept. 9 Dec 74-30 Jun 75,
NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA CREW SYSTEMS DEPT
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Sixteen male subjects attempted to actuate the lower firing control of an ejection seat using only the left hand while exposed to accelerations simulating several flight conditions. A human centrifuge was used to produce accelerations representative of level flight, dive recovery, dive recovery with buffet, cold catapult stroke, braking, inverted flight, spin and skid. In addition, fifty-four male and eight female subjects performed the task at 1 Gz, using three methods of gripping the firing control. Sample data and population estimates of pull forces for the various conditions are presented. Time data for task performance under acceleration and anthropometric data and force data are given. Author
- Human Factors Engineering and Man Machine Systems