Equation 2-3 can be used to plot a curve showing the free recoil velocity versus time for the period before the projectile leaves the muzzle. The weights of the projectile and powder charge arc both known and it is assumed that the weight of the

Assuming that in the 20-mm gun to be used as an example the estimated weight of the recoiling parts is 50 pounds and the weights of the projcctilc and jxrnder charge are as shown in fig. 2 -5. the value of the multiplying factor is:

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