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The JAI-31 (Russian: ХАИ-31) gyroplane was developed at the JAI in 1977. This original single-seat apparatus was designed for the development of scientific experiments and sport flights. The design and construction was directed Gennadi Grigorievich Jmyz.
The JAI-31 gyroplane was built on a platform composed of two floats made of wood, joined together with metal stringers on which the pilot's seat, the rotor base and the vertical plane were mounted.
The control of the gyroplane was through the combination of the 6.2 meter diameter rotor and the rudder.
To take off, the rotor began to rotate manually and then towed by a speedboat.
The JAI-31 was continued in the second, improved, JAI-31A of 1978, which was mainly characterized by the absence of the vertical plane.
Rotor diameter: 6.2 m
Empty weight: 60 kg
Maximum takeoff weight. 135 kg
Maximum speed: 50 km / h
Take-off speed: 25 km / h
Landing speed: 5 km / h
Seats: 1
Rotor diameter: 6.2 m
Empty weight: 65 kg
Maximum takeoff weight. 130 kg
Maximum speed: 55 km / h
Landing speed: 5 km / h
Seats: 1
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