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Model number sikorsky s-51

General Information of SIKORSKY S-51
Developed From : Sikorsky R-4

First Flight : 18 September 1943

Introduction : 16469

Manufacturer : Sikorsky

Number Built : over 300

Primary Users : United States Army Air Forces; Template:Plainlist

Produced : 1944–1951

Retired : 1957

Role : Helicopter

Variants : Westland Dragonfly

General characteristics of SIKORSKY S-51
Capacity : 2 stretchers in external panniers

Crew : 2

Disc Area : 1,810 sq ft (168.2 m²)

Empty Weight : 3,780 lb (1,718 kg)

Height : 13 ft 0 in (3.96 m)

Length : 57 ft 1 in (17.40 m)

Loaded_Weight : 4,825 lb (2,193 kg)

Powerplant : 1 × Pratt & Whitney R-985, 450 hp (335 kW)

Rotor Diameter : 48 ft 0 in (14.63 m)

Performance of SIKORSKY S-51
Maximum Speed : 92 knots (106 mph, 171km/h)

Range : 313 nmi (360 mi, 580km)

Service Ceiling : 14,400 ft (4,390 m)

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