Douglas DC-3

The Douglas DC-3 is a propeller-driven airliner that was manufactured by the Douglas Aircraft Company. It had a lasting effect on the airline industry from the 1930s through World War II. It was developed as a larger, improved, 14-bed sleeper version of the Douglas DC-2. It is a low-wing metal monoplane with conventional landing gear, powered by two radial piston engines of 1,000–1,200 hp (750–890 kW). Although the DC-3s originally built for civil service had the Wright R-1820 Cyclone, later civilian DC-3s used the Pratt & Whitney R-1830 Twin Wasp engine. The DC-3 has a cruising speed of 207 mph (333 km/h), a capacity of 21 to 32 passengers or 6,000 lb (2,700 kg) of cargo, and a range of 1,500 mi (2,400 km); it can operate from short runways.

Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.