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Post: Mi-8 helicopter: performance characteristics

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Mi-8 – multifunctional helicopterits scope is expanding due to constant modernization and the possibility of equipping it with a wide variety of additional equipment to perform various tasks. The helicopter can be used in a wide range of conditions and temperatures (from -50 to +50 degrees Celsius), it is easy to operate and maintain.

The development of the V-8 (Mi-8) helicopter began at OKB. ML Mil (National Helicopter Engineering Center named after ML Mil and NI Kamov, now part of the Russian Helicopters holding) https://rhc.aero/structure/nhcIt will replace the Mi-4 multipurpose piston helicopter, proven in May 1960. Mi-8 was created deep modernization Mi-4 helicopter with gas turbine engine. The helicopter was developed simultaneously in two versions: the passenger Mi-8P and the transport Mi-8T.

The first prototype of the new helicopter (single-engine and four-bladed main rotor) took off in June 1961, and the second (two-engine and five-bladed propellers) took off on August 2, 1962. helicopter took place on September 17, 1962.

Serial production of the Mi-8 began in 1965 at an aircraft factory in Kazan (now the Kazan Helicopter Plant), and in 1970 the Ulan-Ude Aviation Plant also began production.

Installed on Mi-8 helicopters in 1964-1967 seven international records (mainly female helicopter pilots).

The helicopter was built according to a single-rotor scheme with a five-bladed three-hinged rotor and a three-bladed tail rotor, two gas turbine engines and a tricycle, non-retractable landing gear.

The fuselage of the frame-built helicopter consists of the nose and middle sections, the tail and end beams. In the bow is a three-person crew cabin, consisting of two pilots and a flight engineer. Cab windows provide good visibility. In the middle, in the transport version, there is a winged cargo hold and a cabin with a central sliding door. behind the cabin on the right is a wardrobe and behind the wings is an opening consisting of doors and a staircase for the rear entrance door.

All metal rotor blades. They consist of a hollow post pressed from an aluminum alloy. All main rotor blades are equipped with a pneumatic spar damage alarm. Powerful hydraulic boosters are used in the control system. Mi-8 is equipped with an anti-icing system that works in both automatic and manual mode. The external suspension system of the helicopter allows you to transport up to three tons of cargo.

If one of the engines fails during flight, the other engine automatically switches to increased power and level flight is performed without lowering altitude. Mi-8 is equipped with an autopilot that provides a constant flight altitude, as well as yaw, pitch and yaw stabilization. The helicopter’s navigation and flight instruments and radio equipment make it possible to fly at any time of the day and in adverse weather conditions. The helicopter is mainly used in transport and passenger versions. In the passenger version, the helicopter (Mi-8P) is equipped to carry 28 passengers. Mi-8P can also be used as an ambulance or transport helicopter to transport small-sized cargo inside the cabin and oversized cargo on an external sling.

The military version of the Mi-8T is equipped with masts for hanging weapons (unguided rockets, bombs). The next military modification of the Mi-8TV was equipped with reinforced posts for hanging a large number of guns, as well as a machine gun installation in the bow of the cabin.

Mi-8MT is a modification of the helicopter, which is the logical consequence of the transition from transport to transport-combat helicopter. More modern TVZ-117 MT engines were installed with an additional AI-9V gas turbine unit and a dust protection device at the air intake inlet. To combat surface-to-air missiles, there are systems that disperse hot gases from engines, hit false thermal targets and generate pulsed infrared signals. in 1979-1988 The Mi-8MT helicopter took part in the military conflict in Afghanistan.

The helicopter can be used to solve various missions: for fire support, suppression of firing points, delivery of troops, ammunition, weapons, cargo, food, medicine, evacuation of the wounded and dead.

In total, more than a hundred modifications of the Mi-8 have been developed to date. released in large quantities 12 thousand unitsthis helicopter has become one of the largest in the world.

The development of the family continues today by the Russian Helicopters holding company of the Rostec State Corporation: new engines, avionics, main and tail rotors, navigation systems, as well as the introduction of composite materials allow Mi-8 helicopters to meet the most modern. aviation requirements.

Tactical and technical characteristics of the helicopter:

Crew – 3 people.
The maximum take-off weight is 13,000 kg.
GTE engine Klimov TV3-117 – 2.
Power – 2 per 1620 kW.
Length – 18,424 / 25,352 m.
Height – 4,756 / 5,552 m.
Maximum speed – 250 km / h.
The practical flight range is 950 km.
Practical ceiling – 5000 m.
load – Up to 24 passengers or 12 escorted stretchers or 4000 kg of cargo.

The material has been prepared based on information from open sources.

Source: Ria

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