A Douglas A-1 Skyraider, nicknamed the "Spad" by its crews, banks through towering cumulus clouds over Southeast Asia. Prized for its long loiter time, heavy ordnance load, and rugged durability, the propeller-driven A-1 served as a mainstay close air support and rescue escort aircraft throughout the Vietnam War, long after most other Air Force units had transitioned to jets. Project: 218939