The director of maintenance of a large U.S. charter/management company with experience with HTF7000 turbofans half jokes that, while the engine runs well, you do not want to borescope it.
The turbofan for the USAF Fairchild-Republic T-46 advanced trainer was rated at 1,330 lb. thrust and was assigned the designation F109. But the program was canceled after the first 28 F109s were delivered.
