Long-Line Loiter Personnel Retrieval System: Triaxial Acceleration Tests
Final rept. Nov 1969-Jun 1970
AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH
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The report describes the feasibility of using a fixed-wing aircraft, employing free-fall and circling-line techniques, to rescue personnel or retrieve equipment from the ground. The technique involves deploying a line from the aircraft while a controlled turn is maintained, causing the line to describe a diminishing spiral earthward. As a continuation of the efforts described in AMRL-TR-69-140, this report describes measurements of launch g forces and of line tensions in recovering 185 to 231-pound dumies. For 7 launches, the mean total g was 01.7 plus or minus .19 gsec. Line tension at the aircraft was 360- 645 pounds at launch and from 245-410 pounds when the dummy was in trail behind the aircraft. Results suggest that this method of retrieval is feasible for human subjects or equipment with regard to stability and g load at launch.
- Gliders and Parachutes