A crossed pair of A-1 Skyraider propeller blades forms an unofficial squadron emblem outside a "Spad" operations building, flanked by painted aircraft silhouettes marking missions flown. Such improvised unit pride displays were common at forward airbases like Da Nang and Nakhon Phanom, where A-1 Skyraider pilots of the 56th Special Operations Wing flew close air support and rescue escort missions throughout the Vietnam War. Project: 218905