The Douglas C-124 Globemaster II was a heavy-lift cargo aircraft developed from 1947 to 1949 by Douglas Aircraft. It was powered by four large piston engines and could carry up to 68,500 pounds of cargo in its 77-foot cargo bay. The C-124 was first delivered in 1950 and was used extensively during the Korean War and Vietnam War to transport heavy equipment, vehicles, and troops around the world for the US military. Production of the C-124 continued until 1955, with most being retired from active service by 1974 after being passed to the Air National Guard and Air Force Reserve.