Staff Sgt. Justin Warren, F-16 Viper Demo Team public affairs, walks on the flightline during the Heritage Flight Training Course at Davis-Monthan Air Force Base, Ariz., March 2, 2019. The five-day training prepares Air Force demonstration team pilots, maintenance and public affairs members for the upcoming 2019 air show season. (U.S. Air Force photo by Staff Sgt. Jensen Stidham)