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This is the equation defining the procedure followed in obtaining the curves in fig. 2-32.

Since the bolt leaves the backplate at a displacement of 0.993 foot and the bolt will rc-cngage the accelerating lever at a displacement of 0.280 fool from the firing position, the bolt must move .993— .280=.713 foot up to the time the lever is engaged. Fig. 2-32 shows that the time at which the lever is engaged is 0.0396 second and that the velocity of the bolt at this instant is minus 48.0 feet per second. The data from fig. 2-32 are used to extend

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