The Douglas C-47 Skytrain, a military version of the DC-3, was a versatile American transport aircraft used extensively by the Allied forces during World War II. It was known for its reliability and its capacity, being used for troop and cargo transport, medical evacuation, and paratrooper drops. It was powered by two Pratt & Whitney R-1830 Twin Wasp engines. The Skytrain was a crucial component of the Allied war effort, and it served in various theaters of war.