A Douglas A-1 Skyraider -- nicknamed the 'Spad' -- taxis with its wings folded on a Southeast Asian airfield during the Vietnam War. Prized for its heavy ordnance capacity and long loiter time, the piston-engine Skyraider remained a vital close-air-support platform for the U.S. Air Force, Navy, and South Vietnamese Air Force well into the jet age. Project: 218963