Primex Technologies, Inc.

John W Duchek

Donald R Osment

William Brian Stewart

W Brian Stewart

The present invention is directed to a pre-molded aft seal for an armor piercing fin stabilized discarding sabot (APFSDS) projectile, comprising a plastic sleeve made from a material selected from the group consisting of thermoplastic polyurethane and thermoplastic polyester elastomer, and effective to seal an APFSDS projectile from combustion products, the plastic aft sleeve further comprising an outwardly flanged first portion having a radius of curvature of from about 0.1 to 5 inches; a constantly decreasing diameter second portion; and an inwardly flanged substantially conical third portion connected to the second portion by a curved portion having a radius of curvature of from about 0 to 0.25 inch.

Pre-molded AFT seal for discarding sabot projectiles

An armor piercing fin stabilized discarding sabot kinetic energy projectile includes a pre-molded plastic aft seal sleeve to protect the sabot from damage from the propellant and replaces both the RTV and the protective sheath of conventional designs. The seal is manufactured from thermoplastic polyurethane or thermoplastic polyester elastomer.

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Red Lion, PA, United States of America

John W Duchek