Canard drive mechanism latch for guided projectile
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United States of America Patent
Stats
-
Feb 15, 1983
Grant Date -
N/A
app pub date -
Jan 19, 1981
filing date -
Jan 19, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A latching pin is held in a mating hole by a retaining wire prior to firingf a guided projectile to lock together a canard frame and an intermediate body which is part of a canard deflecting mechanism. Upon launch, the retaining wire is sheared by an inertia-driven shear mass but the latch pin is maintained in the latching condition by centrifugal force imparted to the canard frame and intermediate body during launch. Following launch, the canard frame and intermediate body are despun by aerodynamic drag on canards. Once despinning has proceeded sufficiently to reduce the centrifugal force to a value low enough to be overcome by a resilient member, the latch pin is withdrawn from the mating hole and relative rotation of the intermediate body and the canard frame are permitted to thus begin deflecting a pair of deflectable canards for producing aerodynamic lift to steer the projectile.
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