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.
在
体外形和外界大气密度不变的条件下，提出了利用炮口
赫数和顶点赫数确定旋转最佳尾锥角的方法。
的)尾锥部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.
在体外形和外界大气密度不变的条件下，提出了利用炮口赫数和顶点赫数确定旋转最佳尾锥角的方法。
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