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Sikorsky H-19 Chickasaw
The Sikorsky H-19, (also known as the S-55) was a multi-purpose helicopter used by the United States Army. It was also license-built by Westland Aircraft as the Westland Whirlwind in the United Kingdom. United States Navy and Coast Guard models were designated HO4S, while those of the U.S. Marine Corps were HRS.
Type: Utility Helicopter
Crew: 2 (pilot, copilot)
Capacity: 12 troops or 8 litters
Manufacturer: Sikorsky
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Models: see variants
Maiden flight: Nov. 10, 1949
Service Delivery: 1950
Number built: 1,550+
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Specifications:
Powerplant:
Model: Pratt & Whitney R-1340-57
Type: Radial Engine
Number: One
Horsepower: 600 hp
Dimensions:
Length: 62 ft 7 in (19.1 m)
Rotor Diameter: 53 ft (16.16 m)
Height: 13 ft 4 in (4.07 m)
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Weights:
Empty: 4,795 lb (2,177 kg)
Loaded: 7,200 lb (3,266 kg)
Max takeoff: 7,900 lb (3,587 kg)
Performance:
Maximum speed: 101 mph (163 km/h)
Range: 405 mi (652 km)
Service ceiling: 10,500 ft (3,200 m)
Rate of climb: 700 ft/min (213 m/min)
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Design and Development:
The H-19's first flight was on November 10, 1949 and it entered operations in 1950. Over 1,000 of the helicopters were manufactured by Sikorsky for the United States. An additional 550 were manufactured by licensees of the helicopter including Westland Aircraft, Sud-Est in France and Mitsubishi in Japan.
The helicopter was widely exported, used by many other nations, including Greece, Israel, Chile, South Africa, Denmark and Turkey.
Sources:
Wikipedia: Sikorsky H-19
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