Thiokol Corporation

Clyde E Carr, Jr

Thomas J Frey

Daniel C Dombrowski

Andrew G Nevrincean

A solid propellant dual pulse rocket motor has a pressure vessel containing two pulse grains separated by a barrier insulator. An igniter assembly disposed at a fore end of the pressure vessel selectively ignites a first pulse grain from a central channel within the grain. The igniter assembly also ignites a second pulse grain by ejecting hot combustion gases onto the fore end of the grain. Using such an ignition arrangement, a dual pulse rocket motor may be constructed using standard off-the-shelf ignition components.

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Lincoln University, PA, United States of America

Clyde E Carr, Jr