Pratt & Whitney officials say they will be delivering two F135-PW-100 Joint Strike Fighter engines to the Arnold Engineering Development Center, Arnold AFB, Tenn., late in October to start conventional takeoff and landing (CTOL) qualification tests that will run through January. Thomas Johnson, chief engineer for P&W’s F135 program said the next portion of the development will involve flight clearing for the A-1 first aircraft—scheduled for flight in August 2006.
The rate of building B-21 bombers would speed up if the fiscal 2026 defense budget passes. But it remains unclear how much capacity would be added, and whether the Air Force would simply build the bombers faster, or buy more.