Gliding wing parachute apparatus with staged reefing deployment means
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United States of America Patent
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-
Jul 11, 1989
Grant Date -
N/A
app pub date -
Nov 23, 1987
filing date -
Nov 23, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gliding wing parachute apparatus having a plurality of longitudinally extending ram-air inflation cells which are grouped into individual stages which are released preferably upon full inflation of the previous stage. The stages are preferably balanced with respect to the centerline of the parachute. The second and third stages are reefed by being retained by lacing or fabric flaps into closed position until full deployment of the previously deployed stage is completed. Pyrotechnic cutting devices can be responsive to full inflation to cause release of the next scheduled stage of ram-air inflation cells. Subsequent stages can be formed by inflation cells of a thinner material since the load will be less than during initial deployment. Also tensile strength of suspension lines can be decreased with subsequent stages due to lower loading characteristics.
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