Pop-up fin

Details Pop-up fin Pop-up fin

1974-09-30

1976-11-09

Pendegrass, Verlin R.

Aeronautics and astronautics

Missile stabilization or trajectory control

Externally mounted stabilizing appendage

F42B 1332

Patent

active

039906566

ABSTRACT:
A fin construction for small missiles that includes two members that are otally secured together at one end with the other end of one of the members being pivotally secured to a structure and the other end of the other member being slidably mounted on a rod with tension springs biasing the two members together to form a generally triangular shape of a fin. The two members are maintained in a flattened out relation inside an opening of the missile housing by securing means around a plurality of the fins located around the periphery of the missile which securing means maintains the fins in a retracted position until the missile is launched from a launch tube at which time the securing means is removed to allow the tension springs to bias the fin members into a triangular fin shape for stabilizing the rocket.

REFERENCES:
patent: 3188957 (1965-06-01), Petre
patent: 3826448 (1974-07-01), Burk, Jr.

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