Tech. Sgt. Don Caber, 436th Maintenance Squadron aircraft hydraulic section chief and volunteer project lead, removes cleaning compound from the fuselage of a McDonnell Douglas VC-9C Aug. 25, 2020, at Air Mobility Command Museum on Dover Air Force Base, Delaware. Caber, along with other members of the hydraulic section, volunteered to strip, clean and polish the shiny aluminum skin of the aircraft. (U.S. Air Force photo by Roland Balik)