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I-1

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Helicopter development began in 1947. under the leadership of Mil, which was proposed by project light multipurpose helicopter for military and civilian applications. Pre-under the leadership of the Central Mil Aerohydrodynamic Institute (TsAGI) was designed and constructed full-scale installation gelikopternaya NSU for aerodynamic research full length of the rotor, then used for helicopter, the designation of GM 1.

Mi-1 – video

The aircraft factory in g. Kiev three experimental helicopter was built: the first flight of the first prototype of the helicopter held 28 September 1948. (Test Pilot M.K.Baykalov), later 1948-1949gg. – the other two experimental helicopters (test pilots G.A.Tinyakov, V.V.Vinitsky and M.L.Gallay). State tests of the third pilot of the helicopter began 10 September 1949, a 21 February 1950. It was accepted by the Council of Ministers to start serial production of the Mi-1 (GM-1). Series production began in 1950. at the Moscow Helicopter Plant, and then a big series from 1952. in Kazan, that marked the beginning of large-scale production of helicopters in our country.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

In 1954. Mi-1 began to be produced in 1958 and Orenburg. In Rostov. In 1957. began production of the Mi-1 under license in Poland. Total was 1950-1960gg. built more 2500 helicopters, Besides, 300 helicopters were produced in 1957-1960gg. under license in Poland.

When creating and fine-tuning of the Mi-1, a number of original technical solutions has been used, among which the control system rotor with a tuned mass damper, subsequently fitted with reversible hydraulic actuators, Association management systems collective pitch of the main rotor and engine power in a single system “Step-gas”, -icing system for the main rotor and tail rotor and other.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

In its flight performance of the Mi-1 helicopter approached the known American helicopter Sikorsky S-51, created in 1946, Bristol and the British helicopter 171, established in 1947, but, Unlike these helicopters, under construction for a short time a small series (Sikorsky S-51 1947-1951gg, constructed 379 helicopters and Bristol 171 in 1950-1954gg, constructed 178 helicopters) and which were the “transition” helicopters, who found limited use and soon replaced by more sophisticated helicopters, Mi-1 helicopters got the widest practical use in the armed forces and the national economy of our country and in many countries, where they were exported, Well proven in use. About high flight performance of the Mi-1 helicopter show set in 1958-1968gg. 27 international records, among which speed records 210.535, 196.452 and 141.392km / h on the basis of 100, 500 and 1000 km, 6700m altitude and flight distance 1654.571km, and 11 women's records.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Therefore, Mi-1 still remains in use in many countries; according to, given in the annual review “Military aircraft of the world”, published in the journal “Flight International”, in mid 1995h. in the armed forces of the world used about 150 Mi-1.

modifications

I-1 – The base variant, designed for the pilot and two passengers.

I-1A – This model differs from the Mi-1T, mainly by the presence of electromechanical trimmers, instead of spring, more advanced instrumentation equipment, and installing additional node board fuel tank. There was also a learning modification, bearing the designation Mi-1AU, It was equipped with a periscope surveillance devices and aerial camera spotter - Mi-1 AKP. Resource major parts of the helicopter by the end of 1950, has reached 1000 hours, by the mid-1960s. — 2000 hours, and in another 10 years reached 3000 hours.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Agricultural Mi-1 – for use in agriculture and forestry, pest control; It is provided with two fuel tanks on the sides of the fuselage capacity 250 l and bars with nozzles for spraying chemicals

Mi-1MNH (Social Welfare) – E 1MNH is an improved version of the Mi-1. Mi-1M was the basis for the emergence of a new civil modification of the Mi-1MNH. It was created in five variants: Triple rear passenger with a sofa, sanitary with lateral detachable gondolas, mail with hanging containers, The distillation with an extra fuel tank and Agricultural, which when used for spraying and dusting tanks are equipped with special side bars and nozzles Aerope. In the mass production and operation of Mi-1MNH entered, Mi-how and 1NH 1959 he received the title of "Moskvich". Since the early 1960s,. all Mi-1M and Mi-1NH began to equip forced engines AI-26VF, as well as all-metal blades and hydraulic actuators in the control system. 27 June 1960 Year Mi-1NH was shown H. FROM. Xruщjovu. One such helicopter, made in the "luxury" version, used by the President of Finland.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Sanitary Mi-1 – with two outboard nacelles on the sides of the fuselage for the sick, connected to the cabin, and a table for medical devices in the cockpit; built in 1954

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Mi-1 H – deck float chassis; used in the whaling fleet “Glory”

Mi-1 H – Mi-1P is a variant with floats.

Mi-1T – Mi-1T is subsequent development modifications Ni-1U. On Mi-1T (T - "trohsotchasovoy", it meant, that the resource is the main parts of the machine brought to 300 no) We set a new powerplant, AI-26B with the power takeoff 575 hp, cockpit doors have been expanded, mounted control fins and de-icing system of the two screws. The new experimental model became the model for a series of 1955 g. Its double modification training designated as Mi-1TU. AT 1954 year two of these helicopters have been refitted and sent to operate in the Arctic for the home on icebreakers, At the same time, work began on creating variants of an artillery spotter Mi-1KR (Later, we 1TKR), launched into a series in 1956 year.

Mi-1U – Mi-1U is trainer version, with control double. Widely used in DOSAAF.

I-3 – E 3 is the result of deep modernization Mi-1. He was commissioned by the military for medical needs. By Mi-1 base variant features a new four-blade main rotor, more comfortable cabin, and fuselage structure was changed, installed on the sides of the gondola suspended for transportation of the sick and wounded.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Military Mi-1mu with four ATGM complex "Phalanx", 1961 g.

Design

Single-rotor helicopter adapted scheme with tail rotor, one PD and tricycle landing gear. Fuselage truss with obshivnoy, aluminum alloy and tail boom semi-monocoque construction with an upwardly inflected end beam and controllable stabilizer. In the cockpit placed the pilot in the front seat and two passengers in the back, in the training variant with dual controls – student in the front seat and the instructor behind him.

chassis tricycle, fixed landing, the main truss support, front support self-orienting. At the end of the tail boom set safety support. Track 3.29m chassis, base chassis 3.2m.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Ball screw trilobate, with hinged blades and friction dampers. The blades of mixed construction, with steel tubular spar, wooden ribs and stringers and a covering made of plywood and canvas. The vanes have a trapezoidal shape in plan and profile NACA 230 variable relative thickness. The latest models equipped with all-metal helicopter blades rectangular shape in plan, with extruded aluminum alloy spar bonded thereto with sections with an aluminum honeycomb core.

Tail rotor trilobate, diameter, 2.5m pushing, wooden trapezoidal blades.

The power plant consists of a single radial piston engine semitsilindrovogo AI-26B power 423kVt, mounted in a horizontal position and provided with an angular gear and a fan for forced cooling.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

The fuel system includes a tank capacity of 240L, Installation of the additional outboard fuel tank capacity 160l. Transmission consists of a main gearbox with clutch, intermediate and tail rotor gearbox, shafts and brake rotor. shaft rotation speed of the rotor 232 rev / min, tail rotor – 2050 rev / min.

mechanical control system, with hard-wired to control the collective pitch and rope – for cyclic pitch control of the blades of the main rotor and tail rotor pitch common; stabilizer control from the handle “Step-gas” It has a rigid wiring, the control system includes unloading the spring mechanisms. The equipment provides helicopter flying day and night and in adverse weather conditions. Main rotor and tail rotor, as well as the windshield of the cockpit are alcohol-icing system.

 Mi-1 Engine. dimensions. The weight. story. Range of flight

Performance characteristics of the Mi-1

– First flight: 1948 year
– Get Started: 1951 year

Mi-1 crew

– 1 human

Capacity of the Mi-1

– 2 passenger

Overall dimensions of the Mi-1

– The diameter of the rotor: 14,346 m
– The diameter of the tail rotor: 2,5 m
– Length with rotating. screws: 17,0 m
– fuselage length: 12,40 m
– Height with rot. screws: 3,3 m

All Mi-1

– empty weight: 1798 kg
– Normal takeoff weight: 2296 kg
– Maximum takeoff: 2331 kg

Mi-1 Engine

– engine's type: 1 PD Progress AI-26V
– Power: 575 l. from.

The rate of MI-1

– Cruising speed: 130 kmh
– full speed: 170 kmh
– Skoropodъёmnost: 318 m / min

Range of flight of the Mi-1

– 370 km

Practical ceiling Mi-1

– 3000 m

Photo Mi-1

 Mi-1 Engine. dimensions. The weight. story. Range of flight

 

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