Hypervelocity launch dynamics

Abstract

The launch dynamics from a generic hypervelocity cannon are considered over the velocity range from 1500 through 3500 m/s. Both fin and flare stabilized projectiles are examined for the influence of in-bore dynamics, muzzle blast, sabot discard, and free flight aerodynamics upon their trajectory. Computations are performed using codes developed and validated for conventional cannon with ordnance muzzle velocities (approximately 1700 m/s). While the extension into the hypervelocity regime is not supported by experimental data, this initial study is intended to aid in defining potential problem areas.