I read with interest Frank Morring, Jr.'s commentary “Big Boosters” (AW&ST July 23, p. 22), about the Saturn V's F-1 first-stage engine that may fly again. One aspect not mentioned is whether any F-1 engines are still in storage and, if so, how many? If stored engines do exist, could they be used for a future booster in the same way stored space shuttle main engines are intended for use with the planned Space Launch System and then followed by newly built engines? If new F-1s are ...


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