An Air Force F-35 Lightning II, F-16 Fighting Falcon, F-22 Raptor, A-10C Thunderbolt II and P-51 Mustang fly in formation during the 2018 Heritage Flight Training and certification course at Davis-Monthan Air Force Base, Ariz., March 4, 2018. The aircrews practiced ground and flight training to enable civilian pilots of historic military aircraft and Air […]