Whirlwind helicopter characteristics
General characteristics
Crew: Two pilots
Length: 41 ft 9 in (12.71 m)
Rotor diameter: 53 ft 0 in (16.15 m)
Height: ft in (m)
Disc area: 2,205 ft² (205 m²)
Empty weight: lb (kg)
Loaded weight: lb (kg)
Max takeoff weight: 7,800 lb (3,538 kg)
Powerplant: 1× Alvis Leonides Major 9-cylinder radial, 750 hp (559 kW)
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