A Fairchild C-123 Provider transport, serial 54515, sits on the flight line at a U.S. Air Force base, its rear cargo doors open as ground crew attend to the aircraft. Developed in the mid-1950s, the C-123 became a workhorse of tactical airlift and later served extensively in Southeast Asia. Trainer and transport aircraft visible in the background reflect the diverse mix of assets typical of a busy Cold War-era airfield. Project: 218218