Kamov Ka-92 is a high-speed coaxial helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

 design proposed by Kamov

Kamov

Kamov is a Russian rotor-winged aircraft manufacturing company that was founded by Nikolai Il'yich Kamov, who started building his first rotor-winged aircraft in 1929, together with N. K. Skrzhinskii...

 of Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. Its competing with the Mil
company for a 1.3 Billion USD project by the Russian government for development of a high-speed helicopter.

Design and development

The Kamov Ka-92 is part of a program of the newly established Russian Helicopters company intended to create a new generation of middle-class helicopters cruising at about 500 km/h (312 mph) and fly over a distance of up to 1400 km. Its preliminary design and some specification data were unveiled at HeliRussia 2009 exhibition near Moscow.

The Ka-92 will feature a coaxial rotor system which is distinctive of Kamov products. Like on the Mil Mi-X1

Mil Mi-X1

Mil Mi-X1 is a high-speed helicopter being proposed by Mil of Russia.The aircraft belongs to the same program as its competitor Kamov's Ka-92 intended to create a new generation of middle-class helicopters cruising at about 500km/h...

, a pusher propeller will be used on the Ka-92 but the Kamov will use two instead of one as Mil has chosen. As Kamov Chief Designer Sergey Mikheev explained, the traditional design when the main rotor both lifts and pushes the aircraft forward only works up to a speed of about 300 km/h due to retreating blade stall

Retreating blade stall

Retreating blade stall is a hazardous flight condition in helicopters and other rotary wing aircraft, where the rotor blade rotating away from the direction of flight stalls. The stall is due to low relative airspeed and/or excessive angle of attack...

. “Now we plan to split the functions of horizontal and vertical flights between different rotors,” said Mikheev.

The Ka-92 is planned as a 30-seat passenger helicopter with a take-off weight of 16 tons. According to Mikheev, the first prototype will be powered by two reliable Klimov VK-2500

Klimov VK-2500

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 engines equipped with a new gearbox. But the designers plan to install more powerful 3,200 hp VK-3000 turboshafts as soon as St Petersburg-based Klimov Company

Klimov

The Kirill Klimov Experimental Design Bureau under the direction of Vladimir Yakovlevich Klimov designed engines for Soviet aircraft. The OKB was formed in the early 1930s to produce and improve upon the liquid-cooled Hispano-Suiza 12Y V-12 piston engine for which the USSR had acquired a license...

 finishes their development. With improved aerodynamics and two rear-mounted counterrotating pusher propellers, the Ka-92 is expected to reach
a cruise speed of 420 to 430 km/h.

See also