Thunderbird Band Pilots assigned to the Thunderbirds, the Air Force's demonstration squadron, perform the diamond roll maneuver over Nellis Air Force Base, Nev., Feb. 28, 2018, during a training flight. During the training season, pilots masters their positions and maneuvers while developing trust within the formation. Air Force photo by Staff Sgt. Ned T. Johnston SHARE: Download: Full Size (2.65 MB) Credit: Staff Sgt. Ned T. Johnston VIRIN: 180228-F-ID984-001E.JPG Photo Gallery