High plateau drift characteristics of spin-stabilized projectile from individual recoilless rifle with rifling

Accurately predicting the drift of spinning projectiles in the highland region has always been a challenging task. The study combines genetic algorithm, modified mass ballistic model, and data from ballistic tests to establish a computational model of projectile plateau drift, which is able to compute the value of projectile drift accurately. The reliability of the model was verified by the tests. The study also explains the reasons for the formation of projectile drift and the characteristics of plateau drift through theory. The results of the study proved that under the same range, the projectile's yaw of repose angle is larger in the plateau region, but its projectile plateau drift is smaller mainly because the flight time of the projectile on the highland is smaller than that on the plains. The results of the study are of great significance for the precision strike of projectiles in the highland area.