The new upgrade package—on top of an existing $2.6 billion contract with UK engine manufacturer Rolls-Royce—will keep the B-52 bombers flying indefinitely into the future. The United States Air Force ...
The Air Force awarded Boeing a $2 billion contract to start replacing the first two Stratofortress's engines with new Rolls-Royce engines. (Tech. Sgt. Codie Trimble/Air Force) In December the Air ...