DESIGN AND DEVELOPMENT OF CARTRIDGE, 20MM, APIT T230E1
Abstract:
Development of a 20mm APIT cartridge capable of delivering improved termncendiary effects against aircraft and light-armored targets was undertaken by Frankford Arsenal. Armor piercing characteristics comparable to existing API shot were to be maintained. Approximately 2500 cartridges were fabricated for use in this development. Vastly improved terminal incendiary effects were exhibited against aircraft and light armored vehicle type targets. Armor penetration, accuracy and ballistic match with M56A2 HEI round firing results were good. However, premature termination of this development resulted in a redesigned APIT cartridge which, in its present state, does not meet all of the design objectives and consequently is not suitable for service adoption.