The Sikorsky S-55 (US Army designation H-19 Chickasaw, US Navy designation HO4S) is an American utility medium helicopter in service since 1951. The Sikorsky S-55 is powered by a Wright R-1300-3 radial piston engine providing a top speed of 180 kmh and a range of 578 km. The Sikorsky S-55 carries a flight crew of two or three and up to ten troops or eight litters or 5000 lbs of freight carried in the hold or as a slung load. Research Sikorsky S-55
The Westland Whirlwind Helicopter is an American-designed (as the Sikorsky S-55) British utility light/medium helicopter in service since the 1950's. The Westland Whirlwind Helicopter is powered by a Rolls-Royce Gnome H.1000 turboshaft providing a top speed of 170 kmh and a range of 483 km. The Westland Whirlwind Helicopter is produced in a number of models, and typically carries a flight crew of one or two and up to ten troops or six litters or freight carried in the cabin or as a slung load. Research Westland Whirlwind Helicopter
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Sikorsky S-55
