Airmen from the 60th Aircraft Maintenance Squadron and 725th Air Mobility Squadron work together to lower a C-5M Super Galaxy engine during an engine-changing course June 6, 2019, Dover Air Force Base, Del. Airmen attending the course took turns supervising, raising and lowering the engine so that each one got a chance to get experience the different positions. (U.S. Air Force photo by Senior Airman Christopher Quail)