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The competition heats up: ULA has signed a new contract with Orbital ATK to provide solid rocket motors for its Atlas 5 and Vulcan rockets.
This deal is another nail in the coffin of Aerojet Rocketdyne, as it strongly suggests that the corporate leadership at ULA is very uninterested in doing any business with that rocket engine builder. Recently they have been taking their business every where but to Aerojet.