A USAF Air Commando pilot training class, nicknamed 'Express 22,' poses before a Douglas A-1 Skyraider at Hurlburt Field, Florida. One member of this class, Capt. Leo S. Boston, was later listed Missing in Action on April 29, 1966, during combat operations in Southeast Asia — a sober reminder of the risks these Skyraider pilots faced flying close air support and rescue escort missions over Vietnam. Project: 218839