Aircraft Type Index

Military Helicopter Index



Sikorsky R-6A Hoverfly II Military Helicopter

The Sikorsky R-6A was developed to improve on the success already achieved with the Sikorsky R-4, many improvements were incorporated to address criticisms as much as possible. The fuselage was enlarged and lengthened and the rotor was dynamically balanced making the helicopter less "rattlely" in high speed flight, these improvements allowed the top speed to be raised from 82 mph to 100 mph. A total of 225 Sikorsky R-6 helicopters were built, the majority were used by the USN but 27 aircraft were operated by Great Britain's RAF and Royal Navy as the Hoverfly II.

Sikorsky R-6A Hoverfly II Military Helicopter

Sikorsky R-6A (aka Hoverfly II) Specifications:
    • Crew: Pilot only
    • Capacity: Single observer
    • Length: 47 ft 11 in (14.61 m)
    • Gross weight: 2,600 lb (1,179 kg)
    • Engine: Single 240 hp (180 kW) Franklin 0-405-9 piston engine
    • Main rotor diameter: 38 ft 0 in (11.58 m)
    • Maximum speed: 100 mph (161 km/h; 87 kn)
    • Service ceiling: 10,000 ft (3,048 m)

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