{HEAD ~ The mechanism} relies solely on booster thrust termination and the ensuing cessation of {TAIL ~ acceleration forces} to release the drag brakes, thus requiring no additional electronic or pyrotechnic actuators or timers 
{ HEAD ~ The mechanism } relies solely on booster thrust termination and the ensuing cessation of { TAIL ~ acceleration forces } to release the drag brakes , thus requiring no additional electronic or pyrotechnic actuators or timers
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