Extended moment arm anti-spin device

Details Extended moment arm anti-spin device Extended moment arm anti-spin device

1983-06-27

1985-01-29

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft control

244139, 244147, B64C 1700

Patent

active

044961227

ABSTRACT:
A device which corrects aerodynamic spin wherein a collapsible boom 42 extends an aircraft moment arm and an anti-spin parachute force 24 is exerted upon the end of the moment arm to correct intentional or inadvertent aerodynamic spin. This configuration effects spin recovery by means of a parachute 30 whose required diameter 32 decreases as an inverse function of the increasing length of the moment arm. The collapsible boom 42 enables the parachute 30 to avoid the aircraft wake 50 without mechanical assistance, retracts to permit steep takeoff, and permits a parachute 30 to correct spin while minimizing associated aerodynamic, structural and in-flight complications.

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patent: 4108402 (1978-08-01), Bowen

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