|Type||Military transport aircraft|
|Primary user||United States Army Air Forces|
Also known to the men who flew them as "The Whale," the C-46 served a similar role as its brother the Douglas C-47 Skytrain, but was not quite as famous or as heavily produced. (1,516 Built) The Navy/Marine Corps version was known as the R5C.
This aircraft had a patented fuselage conventionally referred to as a "figure of eight" which enabled it to better withstand the pressure differential at high altitudes. This was done by having the sides of the fuselage creased at the level of the floor that not only separated the two portions but shared in the stress of each, rather than just supporting itself. Production models were unpressurized, but retained the figure eight fuselage configuration. The C-46 could carry more cargo higher than other Allied twin-engine transport aircraft, and was used to carry cargo over the Himalayan air route known as The Hump.
Between 1993 and 1995, Relief Air Transport operated three Canadian registered C-46s on Operation Lifeline Sudan from Lokichoggio, Kenya. These aircraft also transported humanitarian supplies to Goma, Zaire and Mogadishu, Somalia from their base in Nairobi, Kenya.
- AC-46K : Unbuilt version.
- C-55 : Original CW-20 prototype
- XC-113: Engine change. General Electric T-31 turboprop in place of right hand side R-2800. The aircraft handled so poorly on the ground that it was never flown.
- R5C-1 : Military transport version for the US Marine Corps.
- Resort Airlines
- Seaboard & Western
- Republic of China Air Force
- People's Liberation Army Air Force
- Haitian Air Corps
- Japan Air Self-Defense Force
- South Korean Air Force
- United States Army Air Forces
- United States Air Force
- United States Marine Corps
- United States Navy
- Crew: 4
- Capacity: 50 passengers
- Length: 76 ft 4 in (23.27 m)
- Wingspan: 108 ft 1 in (32.9 m)
- Height: 21 ft 9 in (6.63 m)
- Wing area: 1,360 ft² (126.8 m²)
- Empty weight: 32,400 lb (14,700 kg)
- Max takeoff weight: 48,000 lb (22,000 kg)
- Powerplant: 2× Pratt & Whitney R-2800-51 two-row 18-cylinder radial engines, 2,000 hp (1,500 kW) each
- Maximum speed: 269 mph (234 knots, 433 km/h)
- Range: 2,950 mi (2,560 nm, 4,750 km)
- Service ceiling: 27,600 ft (8,410 m)
- Rate of climb: 1,300 ft/min (6.6 m/s)
- Max wing loading: 35 lb/ft² (170 kg/m²)
- Minimum power/mass: 0.083 hp/lb (140 W/kg)
- Army sequence (C-46): C-43 - C-44 - C-45 - C-46 - C-47 - C-48 - C-49
- Army sequence (C-55): C-52 - C-53 - C-54 - C-55 - C-56 - C-57 - C-58
- Navy sequence: R2C - R3C - R4C - R5C
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