USAF expected to order 12 T56 Series 3.5 engine upgrade kits
The U.S. Air Force is expected to finalize paperwork to buy 12 T56 Series 3.5 engine upgrade kits from Rolls-Royce by end of this month.
By DoD photo by Master Sgt. Ben Bloker, U.S. Air Force. (Released) [Public domain], via Wikimedia Commons
Source: USAF expected to order 12 T56 Series 3.5 engine upgrade kits