An F-22 Raptor, F-35 Lightning II and P-51 Mustang fly in formation as part of the U.S. Air Force Heritage Flight during the AirPower over Hampton Roads Open House at Langley Air Force Base, Va., April 24, 2016. The U.S. Air Force Heritage Flight program presents the evolution of USAF air power by flying today's state-of-the-art fighter aircraft in close formation with vintage aircraft. (U.S. Air Force photo by Senior Airman R. Alex Durbin)