General Dynamics Corp., Air Defense Systems Div.

Robert W Coburn

A booster retarding apparatus for an airborne vehicle such as a missile having a separable booster at its rear end, comprises a series of flaps with hinge assemblies for securing the flaps to the aft end of the booster for movement between an inner position extending rearwardly from the booster and an extended position projecting outwardly from the booster. The flaps are biased towards the extended position, and normally retained in the inner position by retaining devices. The retaining devices are released on booster thrust termination, and include a release mechanism responsive to booster thrust termination for releasing the retaining devices. The release mechanism includes a biasing device having a biasing force less than the acceleration forces developed on launch which oppose operation of the release mechanism so that the flaps are held in during booster thrust and are released and urged outwardly on booster thrust termination to brake the booster and separate it from the remainder of the missile.

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Apple Valley, CA, United States of America

Robert W Coburn