Cross-compatible cartridge case for orthodox or rarefaction wave gun firing

In this Phase I SBIR program, Veritay will research, design, develop and demonstrate a cartridge case that enables blowback venting when the cartridge is fired in a rarefaction wave gun (RAVEN), and will function normally when fired in a conventional closed-breech gun. To accomplish this goal, a case design that allows the chamber to vent through the breech will be developed. Also, though not a primary objective, some design effort must be devoted to defining a simple gun mechanism that allows the breech to vent in a manner that is compatible with this case design. During this program, we will design the cartridge case for an objective and a subscale round. The objective round is for a full caliber cannon, assumed to be 105mm at this time. The subscale round will be utilized in a test fixture in Veritay"s experimental test facility. We will perform FEA analyses on each cartridge case design. In addition, we will design the subscale test fixture to be utilized in Phase II for testing and development. We will fabricate and assemble the test fixture during the Phase I Option.