(U.S. Air Force photo by Senior Airman Jensen Stidham/Released)

Retired Air National Guard Chief Warrant Officer 2 Robert Hertel is wheeled around a P-47 Thunderbolt during the Heritage Flight Training and Certification Course at Davis-Monthan Air Force Base, Ariz., Feb. 28, 2015. Hertel flew the Thunderbolt over Iwo Jima, Japan during World War II and had not seen one since the 1960’s. (Credit: U.S. Air Force photo by Senior Airman Jensen Stidham)