Transitional Ballistics, Aeroballistics and Jump Characteristics of a 25-MM-AP Training Projectile with Base Bleed.

摘要

A sabot launched spin-stabilized training projectile is being developed by the U.S. Army for the 25mm cannon. The training projectile is required to ballistically match the present service projectile. The ballistic match requirements are stringent and the transitional ballistics, aeroballistics and jump characteristics of the training projectile must be controlled to satisfy the requirements. This report presents the results of a series of tests which were designed to evaluate the transitional ballistics, aeroballistics and jump characteristics of the training projectile. The same tests are performed on the service projectile to provide a baseline for evaluation of the ballistic match. It was found that the training projectile did satisfy the maximum range requirement of 8000 meters. The jump characteristics of the training projectile and the service projectile are different enough to cause concern about the ability of the training projectile design to meet the center of impact requirement on the target. Keywords: Training ammunition, Spin-stabilized ammunition. (cp)