1.On condition that the front body shape of the projectile is unchangeable,a formula is obtained for determining the relation between the optimum boattail angle and the supersonic flight region.
1.在弹丸前体形
大气密度不变的条件下,提
了利用弹丸炮口
赫数
赫数确定旋转弹丸最佳尾锥角的方法。