Staff Sgt. Anwar Hasan, a loadmaster with the 15th Special Operations Squadron, scans the sky while a CV-22 Osprey tiltrotor aircraft approaches an air-refueling receptacle during a refueling mission at Hurlburt Field, Fla., Sept. 7, 2016. The Osprey is a tiltrotor aircraft that combines the vertical takeoff, hover and vertical landing qualities of a helicopter with the long-range, fuel efficiency and speed characteristics of a turboprop aircraft. (U.S. Air Force photo by Staff Sgt. Christopher Callaway)