U.S. Air Force Staff Sgt. Abraham Rojas, 20th Component Maintenance Squadron engine test facility craftsman, uses a General Electric F110-GE-129 engine throttle at Shaw Air Force Base, S.C., May 29, 2019. The throttle allowed Rojas to increase or decrease the engine’s thrust from a centralized unit. (U.S. Air Force photo by Senior Airman Christopher Maldonado)