A weathered A-1 Skyraider propeller, mounted in an X-pattern on a brick wall, marks 'Building 719' at a U.S. air base in Vietnam. The nickname "SPAD," painted in red behind the blades, was aircrew slang for the Douglas A-1 Skyraider, a rugged propeller-driven attack aircraft flown extensively in close air support and combat search-and-rescue ("Sandy") missions during the war. Ground radar antennas and an Air Force pickup truck complete this everyday scene of squadron life at a forward operating base. Project: 218896