Douglas DC-4: Encyclopedia II - Douglas DC-4 - Derivatives

Douglas DC-4 - Derivatives

DC4M North Star/Argonaut. 71 DC-4s were built by Canadair under the designations North Star, DC-4M, C-4, and C-5. With the exception of the single C-5, these were all powered by Rolls-Royce Merlin engines and 51 of them were pressurized. The Royal Canadian Air Force, Trans-Canada Air Lines, Canadian Pacific Air Lines and BOAC operated these aircraft, the latter under the type name "Argonaut".

Starting in 1959, 20 DC-4s found new life as ATL-98 Carvairs. The Carvair was designed to carry 22 passengers and 5 automobiles. This was accomplished by extending the fuselage, moving the cockpit above the fuselage, adding a side-opening nose, and enlarging the vertical stabilizer to offset the larger forward fuselage. These planes served as flying ferries well into the seventies.

The DC-4 proved a popular type and several remain in service today, particularly in the USA where it proved popular as charter/freight plane.

Douglas DC-4 - Other versions

• DC-4-1009 Postwar passenger model. This civil model could carry up to 86 passengers.
• DC-4-1037 Postwar freight model.

Douglas DC-4 - Specifications DC-4-1009

• Country: United States of America
• Designation: DC-4/C-54/R5D

• Crew: 4
• Capacity: Up to 86 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: 43,300 lb (19,640 kg)
• Loaded: 63,500 lb (28,800 kg)
• Maximum takeoff: 73,000 lb (33,100 kg)
• Powerplant: 4 × Pratt & Whitney R-2000 reciprocating, 1,450 hp (1,081 kW)

• Maximum speed: 280 mph (450 km/h)
• Cruising speed: 227 mph (365 km/h)
• Range: 4,250 miles (6,839 km)
• Service ceiling: 22,300 ft (6,800 m)
• Wing loading: 43.5 lb/ft² (212.4 kg/m²)
• Power loading: 10.9 lb/hp (6.6 kg/kW)

Adapted from the Wikipedia article "Derivatives", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki