Cover ejection and fin deployment system for a gun-launched projectile
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United States of America Patent
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Apr 19, 2005
Grant Date -
N/A
app pub date -
Mar 17, 2003
filing date -
Mar 17, 2003
priority date (Note) -
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Abstract
A fin cover release and deployment system designed for high G forces of gun-launched missiles. In one embodiment, a pyrotechnic actuator drives actuator arms to first release and eject the fin slot covers, followed by deployment of the fins radially outward to the steering position. Following complete ejection of the covers, the fins are driven outwardly by cam surfaces along the latch arms, followed by a spring and wedge mechanism installed interiorly of the fin steering shaft to lock the fins in the fully deployed state. In another embodiment, a motor and rotating threaded shaft replace the pyrotechnic actuator.
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