An upgraded T-56 Rolls Royce 3.5 modified engine is tested at various speeds and monitored by Contract Field Team member, Barry Wertz, to ensure the engine and propeller meets performance specifications Jan. 4, 2021, at Little Rock Air Force Base, Ark., before delivery to an Air Force Reserve or Air National Guard C-130H Hercules squadron. Contract Field Team members at the test cell facility ensure each engine is serviceable, troubleshoots any issues, and performs additional inspections. (U.S. Air Force Reserve photo by Maj. Ashley Walker)