The A-1 Skyraider 'Wabash Cannonball' billows smoke as its radial engine roars to life on a Vietnam War-era flight line. Nicknamed the 'Spad' by its pilots, the A-1 was prized for its heavy ordnance load and long loiter time, making it a mainstay of close air support and search-and-rescue escort missions throughout the war. Project: 218943