The Air Force is undecided about not only pursuing a next-generation liquid engine program but also the type of engine that could be developed, a top service official said Friday. “A decision has not been made,” Air Force Assistant Secretary for Acquisition William LaPlante told an audience at the Atlantic Council think tank in downtown Washington. “I don’t think we know enough yet. But it’s not taken off the table.” The Air Force is examining the future of national security…
