B-52J Bomber: The Aerospace and Industrial Paradox: The United States Air Force is attempting something no air force has done: taking a fleet of bombers whose newest airframe was delivered in 1962 and rebuilding them to fight into the 2050s, when the last B-52 will retire at nearly 100 years old. The effort carries a new designation, the B-52J, and rests on two great programs running in parallel, one to replace every engine in the fleet and one …