http://www.airliners.net/aircraft-data/douglas-dc-4/189
The Douglas DC-4 was a medium-long range aircraft (at the time) built by the Douglas Aircraft Company it was a four engine piston aircraft capable of flying 4250 miles on a full tank of fuel it was one of the first aircraft to do transatlantic flights
Liveries possibly included could be
Pan American Airways
National Airlines
Northwest Airlines
Western Airlines
KLM Royal Dutch Air Lines
Scandinavian Airlines System
Iberia Airlines of Spain
Swissair
Air France
Sabena Belgian World Airlines
Cubana de Aviación
Avianca
Aerolíneas Argentinas
Aeropostal of Venezuela
South African Airways
United Airlines
Buffalo Airways
Crew: four
Capacity: 40 to 80 passengers
Length: 93 ft 10 in (28.6 m)
Wingspan: 117 ft 6 in (35.8 m)
Height: 27 ft 6 in (8.38 m)
Wing area: 1,460ft² (135.6 m²)
Empty weight: 43,300 lb (19,640 kg)
Loaded weight: 63,500 lb (28,800 kg)
Max. takeoff weight: 73,000 lb (33,100 kg)
Powerplant: 4 × Pratt & Whitney R-2000 radial engine, 1,450 hp (1,081 kW) each
Maximum speed: 280 mph (450 km/h)
Cruise speed: 227 mph/197kts (365 km/h)
Range: 4,250 mi (6,839 km)
Service ceiling: 22,300 ft (6,800 m)
Wing loading: 43.5 lb/ft² (212.4 kg/m²)
Power/mass: 10.9 lb/hp (6.6 kg/kW)
I did not see a version of this so please feel free to close it if it is a copy. All i saw was the Buffalo Livery.