U.S. Air Force Thunderbirds aerial demonstration team crew chiefs check in with pilots before their flight during the AirPower over Hampton Roads Open House at Langley Air Force Base, Va., April 24, 2016. The Thunderbirds fly the F-16 Fighting Falcon, the Air Force’s first multi-role fighter aircraft. (U.S. Air Force photo by Staff Sgt. Natasha Stannard)