A meticulously restored P-51D Mustang, marked for 'Capt. Jesse Frey' and coded 'G4-S,' sits on the ramp at a 2014 Tennessee air show. Though a World War II-era fighter rather than a Vietnam-era type, the Mustang represents the broader American warbird preservation movement that keeps historic combat aircraft flying at events attended by veterans and enthusiasts alike. Project: 219310