
The Air Force in December issued two contracts worth a combined $78 million for demonstrations of a Medium Class Stage III ICBM motor with technologies applicable to multiple future common strategic propulsion systems. ATK [ATK] received $49.4 million Oct. 18 and Aerojet Rocketdyne, a division of GenCorp [GY], received nearly $29 million, according to the Defense Department. The contracts will begin development of a flight motor design that will be a direct replacement for the SR-73, which is the third…