Heritage Flight 2015
A P-51 Mustang, F-86 Sabre, F-22 Raptor and P-47 Thunderbolt fly in formation during the 2015 Heritage Flight Training and Certification Course at Davis-Monthan Air Force Base, Ariz., Feb. 26, 2015. The annual aerial demonstration training event has been held at D-M since 2001, providing civilian and military pilots the opportunity to practice flying in formation for the upcoming air show season. (U.S. Air Force photo by Airman 1st Class Chris Massey/Released)