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Mi-36 Light Helicopter

In the second-half the 70's the helicopter park of the Soviet Air Force in essence composed the helicopters Mi-8, Mi-24 and Mi-6 with the takeoff mass of above 10 t, whereas the U.S. Army and its allies were completed predominantly by the apparatuses of lighter classes. Did not have our aviation of similar machines in arsenal. Light multipurpose Mi-2 in view of some special features had the limited combat employment. The creation of new effective light army helicopter in the USSR was impeded by the absence of the corresponding concepts and, as a result, suitable domestic engines.

At the beginning the 80's the situation changed - OKB, headed By [o].[N].[Favorskim], began the development of light helicopter gas turbine engine by a power of 650 hp than later received designation TV- O -100. In July 1981. the management of the aircraft industry turned to " [MVZ] of [im].[M].[L].[Milya] " and [UVZ] of [im].[N].[I].[Kamova] with the proposal about the creation on the competitive basis of the multipurpose light helicopter, intended for dealing with the armament of enemy, fire support of the troops, transport of personnel, injured and loads, aerial reconnaissance, correction and aim designation, search and rescue operations and connection. Was provided for the possibility of using the new machine "in the pair" with the combat Mi-28 or V -80, and also as the ship target indicator and the proofreader.

Colleagues " [MVZ] of [im].[M].[L].[Milya] " prepared the avenue- proposal of helicopter Mi-36. For the power plant it was provided to use two engines TV- O -100 that it made it possible to ensure the necessary flight safety. The appearance of helicopter determined single-rotor design with the three-bladed rotor with a diameter of 14,5 m and the three-bladed tail rotor with a diameter of 2,7 m. the construction of propeller hubs it made it possible to considerably simplify their operation due to the application of torsion shafts, elastomeric blocks and [metalloftoro]- stratified bearings. Propeller blades were from the glass-fiber-reinforced plastic. The installation of the extension survey- aiming optical-television system, which makes it possible to detect purposes and to accomplish an aiming from the helicopter, which hangs after the shelter, was assumed above the rotor hub. A fuselage of the type semi-monocoque consisted of the two-place armored flight deck, equipped with the mobile machine-gun installation of the caliber of 7,62 mm, and the cargo compartment, which contains four soldiers or four stretchers with the injured. In the tail end of the cargo compartment the second easily removable mobile machine-gun installation of the caliber of 7,62 mm for the firing of rear hemisphere was mounted. The all-around fire of lower sphere was provided for " by [milevtsami] " on the basis of the experience of the combat employment of helicopters in Afghanistan.

Under the cargo compartment were arranged the protected and equipped with polyurethane-foam filler fuel tanks. Detachable consoles for the suspension of the armament were fastened along the sides of fuselage: the anti-tank guided missiles (to 8 units), blocks and containers of the unguided weapon. The engines, supplied with dustproof and ejector- exhaust devices, were placed on the ceiling of cargo compartment. With fuel- and lubrication systems ensured the fitness for work of engines with the near-zero overloads. Chassis was tripod with the front support. Hydraulic system consisted of basic and duplicating. Content of equipment had to guarantee the possibility of piloting in the daytime and at night in any meteorological conditions. The designers OF [MVZ] provided civil version Mi-36: for the transportation of passengers (10 people), loads (to 1 t), for the sanitary- rescue works, patrolling and [aerogeodezicheskoy] reconnaissance.

However, takeoff mass Mi-36 was evaluated at 3400 kg. servicemen they wanted to be packed in 2500 kgf, which according to the calculations was not actual with the complete satisfaction of all requirements of technical task. In connection with this [MVZ], overloaded by other tasks, did not begin to enlarge study Mi-36. In contrast " [UVZ] [im]. Of [n].[I].[Kamova] " proposed the spectacular design of compact single-engine coaxial-type helicopter V -60 with the calculated mass only of 2200 kg. natural that armed forces in 1982. they preferred Kamov development. In the process of designing, however, V -60 it was converted into the single-rotor twin-engined helicopter by the takeoff mass of more than 6 T. nevertheless, Russian army does not still lose the hopes to obtain light multipurpose helicopter.




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