A P-40 Warhawk and P-51 Mustang fly alongside a U.S. Air Force F-16C Fighting Falcon and A-10C Thunderbolt II during a formation flight over Indianapolis, Ind., May 25, 2019. The formation, known as Heritage Flight, flew over the 103rd running of the Indianapolis 500. (U.S. Air Force photo by Staff Sgt. Betty R. Chevalier)