With two gas turbine engines TVZ-117MT takeoff power 1400kw, and improved flight performance. Helicopter development Mi-17 completed in 1980 and completed in 1981. it was first shown at the aerospace exhibition in Paris. Helicopters Mi-17 manufactured by the Kazan Helicopter Plant and the Aviation Plant in Ulan-Ude, where more than 2,000 helicopters have been built Mi-17 various modifications:
- Mi-17- basic multi-purpose and transport helicopter;
- Mi-17P- passenger helicopter, designed to carry 26 passengers; in the cabin there are 13 double passenger seats and a wardrobe, luggage racks above the seats, there is thermal and sound insulation and a heating and ventilation system, there is a ladder door on the left side, and a hatch for loading luggage in the tail section;
- Mi-17 "Salon"- a passenger helicopter with a superior cabin in versions for 11, 9 and 7 passengers, a version for 86 is being prepared for release ( how much?) passengers with extended flight range up to 1700 km;
- Mi-17M- rescue helicopter, equipped with an onboard boom with a winch SLG-300 for lifting on board or lowering one or two people or cargo weighing 300 kg in hover mode up to a height of 55 m and a cradle with a carrying capacity of 280 kg equipped with a lantern, as well as a universal lifting seat with an impulse beacon, onboard searchlight PBP-DRISH-575 provides search for objects at night and selection of a landing site;
- Mi-17-1V- transport helicopter with gas turbine engine TVZ-117VM takeoff power 1620kw, maximum carrying capacity 4000kg in the cockpit and 5000kg on external suspension and static ceiling 3980m at normal takeoff weight 11100kg, maximum takeoff weight 13000kg.
In the airborne transport version, 30 paratroopers on folding seats can be placed in the cargo compartment, and in the sanitary version, 12 wounded on stretchers or up to 20 wounded, including 3 on stretchers and 17 sitting.
In the airborne transport version, pylons with beam holders VDZ-57 KRVM are installed on the sides of the fuselage for attaching 4 blocks B8V20 20 NAR caliber 57mm or containers UPK-23-250 with guns GSh-23L caliber 23mm or bombs up to 500kg and incendiary bombs. 8 machine guns on pivot mounts can be placed in the openings of the cargo doors and blisters of the cabin, and the shelling of the front and rear hemispheres is provided by two PKT machine guns in the bow and stern mobile mounts. The protection of crew members and shooters is provided by armor plates. To protect against air-to-air and surface-to-air missiles, the helicopter is equipped with active and passive protection systems, as on a helicopter Mi-8MTV-2 . To drop paratroopers, cargo doors are dismantled and jumps are made through the cargo hatch and an open sliding door;
- Mi-171- helicopter variant Mi-17, developed in 1989; produced at an aircraft factory in Ulan-Ude;
- Mi-171VA- a helicopter-flying hospital with a set of medical equipment to provide assistance in hard-to-reach areas; the cabin is equipped with an operating room with heat and sound insulation and necessary equipment powered by an auxiliary power unit.
- Mi-172- passenger helicopter with gas turbine engine TVZ-117VM takeoff power 1620kw, which ensures the operation of the helicopter from high-lying platforms, up to 4000m.
- Mi-17 "environmental laboratory"- designed for operational qualitative and quantitative monitoring of the state environment and production structures; equipped with a complex of equipment for spectral-zonal mapping of the terrain and for sounding the atmosphere and the earth's surface at various wavelengths, as well as for radiological monitoring and environmental analysis of the terrain. The helicopter can be equipped with aerial photography equipment for scheduled daily aerial photography of routes and areas from altitudes from 50 to 6000m at flight speeds up to 250km/h.
- Mi-17 fireman- to eliminate fires in residential or remote and hard-to-reach areas or in the forest, with a spillway device with a volume of 2 m 3 and a forest fire descent device for parachuteless landing of up to 20 firefighters in areas forest fire in helicopter hover mode at a height of up to 45m;
- Mi-17P L - radio-electronic jamming helicopter (REP), with phased antenna arrays (PAR) for radio suppression of aircraft radars and weapons control radars of anti-aircraft missile systems, surveillance radars, detection and target designation of enemy air defense systems. digital system processing and formation of interference ensures the classification of irradiating objects and the choice of the most effective form interference, the control of the REB is carried out by an operator included in the crew of the helicopter;
- Mi-17MD– deep modernization of the helicopter Mi-17-1V, which is distinguished by outwardly improved contours of the forward fuselage and cargo hatch and a number of design improvements, including sliding doors in the cockpit on the left side increased in width to 1.25 m, which ensures quick loading and unloading of 36 paratroopers, an external suspension system designed for cargo transportation 5000kg, buoyancy system during emergency landing on water, consisting of two ballonets on the main landing gear and two ballonets in the bow, filled in 30 s and ensuring the maintenance of the helicopter afloat for at least 30 s; additional tanks, increasing the flight range up to 1600km, optional equipment.
The design of the helicopter is basically the same as that of Mi-8, with a number of units and systems from a helicopter Mi-14. Mi-17 looks different from Mi-8 installing the tail rotor on the left side of the tail boom (instead of the right on Mi-8) and shortened engine nacelles, the air intakes of which are equipped with a ROM.
The main rotor is equipped with pendulum vibration dampers to reduce the level of vibrations. The main rotor blades are made of fiberglass and have the same geometric dimensions as those of a helicopter. Mi-8.
The power plant has a system for automatically maintaining the rotor speed and a system for synchronizing the operation of engines: in the event of a failure of one engine, the flight is continued with one engine operating in emergency mode. The helicopter is equipped with an AI-9V GTE auxiliary power unit for powering the air starters of the engines during their start-up and for supplying the on-board network with direct current when the engines are not running.
The transmission is distinguished by the use of a new VR-14 gearbox designed for a helicopter Mi-14. The gearbox is three-stage, with two freewheels, has an oil system independent of the engines; the gearbox has dimensions of 1.2 x 0.88 x 1.76 m and a dry weight of 842.5 kg, designed for power transmission of 3000 kW, the speed of rotation of the output shafts of the engines is 15900 rpm, the main rotor shaft is 192 rpm.
The equipment provides piloting day and night and in adverse weather conditions. On the Mi-171 communication radio stations "Baklan-20" and "Yadro-1", radio compasses ARK-15M and ARK-UD, Doppler velocity and drift meter DISS-32-90, attitude indicators AGK-77 and AGP-74V, radio altimeter F-037, navigation system A-723, weather radar 8A-813. On military versions Mi-17 a device for ejection of LTC and dipole reflectors ASO-2 (under the tail boom) and an interference transmitter for IR systems were installed.
The armament used is the same as in the helicopter Mi-8MTV in addition, it is possible to suspend the installation with the GSh-23 gun.
Technical details Mi-17
Power plant: 2 x GTD TV3-117MT NPO im. Klimov power according to 1400kw, rotor diameter: 21.29m, length: 25.35m, height: 4.76m, takeoff weight: 13000kg, maximum speed: 250km/h, cruising speed: 240km/h, dynamic ceiling: 5000m, static ceiling outside the influence of the earth: 1760m, range of flight.
Mi-17V-5 airborne transport helicopters in Afghanistan / Photo: northern-line.rf
The US Department of Defense positively assesses the quality of Russian Mi-17V-5 helicopters, which are supplied to equip the Afghan armed forces. About this in exclusive interview ARMS-TASS was informed by a source in the military-industrial complex (OPK).
"The letter, signed by the head of the American NSRWA (Non-Standard Rotary Wing Aircraft) Office, highly appreciates the Russian Mi-17V-5 helicopters. I emphasize that this is an official document, not someone else's words," the source said. .
As the specialist noted, another recognition of the outstanding flight qualities and reliability of the Mi-17V-5 from the American side was the issuance of a certificate of recognition on November 9, 2011 of the procedures for ensuring and maintaining airworthiness in relation to helicopter equipment. Russian production.
"US representatives have repeatedly stated that they have chosen Russian helicopters due to their unparalleled reliability in desert climates and sandstorms," the source added.
The OPK representative also noted that from the very beginning of deliveries in 2011, the American side did not have any complaints about the quality of the supplied aircraft. "All rotorcraft arrived on time, they were assembled, tested, and then used for their intended purpose," the source added.
Russian helicopter Mi-17V-5 / Photo: upload.wikimedia.org
Technical reference
Mi-8MTV-5/Mi-17V-5 amphibious transport helicopter - a modern modification of the Mi-8MT helicopter, developed taking into account the experience of combat use.
Created as a result of further improvement of the Mi-8 family helicopters, developed by the design bureau of the Moscow Helicopter Plant with funds and with the direct participation of the Kazan Helicopter Plant.
The helicopter is designed to transport cargo and paratroopers inside the cabin and bulky cargo on an external sling.
In the cockpit / Photo: www.aex.ru
Cargo compartment / Photo: www.aex.ru
The layout of the helicopter allows you to minimize the time to leave the helicopter, which is especially important when landing in combat conditions (36 people in 15 seconds). In the landing version, 36 seats are installed on the helicopter, 6 of them are easily removable.
The Mi-17V-5 is equipped with a non-parachute landing system, which allows the simultaneous descent of four people. The helicopter is equipped with an SLG-300 winch with an onboard boom with a lifting capacity of 300 kg. To search for victims at night, a searchlight of the SX-16 type is used.
To increase the flight range, the Mi-17V-5 is equipped with additional fuel tanks (up to 4 tanks inside the cargo compartment or two tanks outside on special farms).
Mi-17V-5 / Photo: topwar.ru
Mi-17V-5 / Photo: topwar.ru
Main performance characteristics
| Engine (qty, type, brand) | 2 x GTD TV3-117VM |
| Takeoff power, hp | 2х2000 |
| Crew, people | 3 |
| Passengers, persons | 36 |
| Max. takeoff weight, kg | 13000 |
| Norm. takeoff weight, kg | 11100 |
| Empty weight, kg | 7580 | 4000 | 4000 |
| Max. speed, km/h | 250 |
| Cruise speed, km/h | 230 |
| stat. ceiling, m | 3980 |
| Practical ceiling, m | 6000 |
| Range, km | 715 |
| Duration, h | 3,5 |
|
Airframe dimensions, m: |
|
|
length |
19 |
|
height | |
|
width | |
|
Cabin dimensions |
|
|
length | |
|
height |
1,8 |
|
width | |
| HB diameter, m | 21,3 |
According to him, the only unscheduled measure was the dispatch of a reinforced guarantee brigade to Afghanistan due to the fact that the American side refused to train Russian engineering staff to service the Mi-17V-5 fleet.
"The serviceability of the fleet of delivered Russian helicopters exceeds the required level by 80-90 percent and this indicator meets all the requirements," the defense industry representative also informed.
The source noted that the average annual flight time of one Mi-17V-5 helicopter in Afghanistan is more than 200 hours. "This figure is higher than the average annual flight in the Soviet period," he informed.
Before the overhaul, according to the representative of the defense industry complex, there are 6-7 years or 2 thousand flight hours left. "Thus, the terms of the overhaul have not yet come," he said.
Mi-17V-5 Afghan Air Force / Photo: / Photo: periscope2.ru
At present, the Russian side is working to increase the assigned resource of the helicopter (the time interval between the introduction of the rotorcraft into operation and its disposal - approx. ITAR-TASS) from 20 to 25-30 years."Currently, we are studying the possibility of extending the indicator of the assigned resource to 35 years," the representative of the defense industry informed. Despite the fact that the United States does not use the opportunity to purchase additional spare parts for Mi-17V-5 helicopters from Russia during the overhaul, according to the source, they will have to turn to the manufacturer in the future.
"A relatively powerful enterprise abroad for the repair of Russian aircraft is located in Prague, at a plant in the United United Arab Emirates(Sharzha) it is possible to repair the fuselage, the Zaporizhia enterprise "Motor Sich" will be able to repair engines.
Afghan Air Force pilots at the controls of the Mi-17V-5 / Photo: periscope2.ru
Afghan Air Force technicians at the controls of the Mi-17V-5 / Photo: periscope2.ru
However, for Maintenance components such as a gearbox, engine and transmission, the United States will have to turn only to Russia," the defense industry representative said. 8/17.So far, 48 Russian Mi-17V-5 helicopters out of 63 ordered have been delivered to Afghanistan through the US ground forces. The main contract for the supply of 21 helicopters was signed by Rosoboronexport and the US government on May 26, 2011, and was completed by mid-2012.
Last year, Russia completed deliveries of 12 military transport Mi-17V-5 helicopters additional agreement, concluded with the US government in 2012 under the option of the main contract.
In 2013, Rosoboronexport and the US government agreed and signed an agreement for the delivery in 2014 of an additional batch of 30 helicopters.
In total, in accordance with the agreements between the two countries, 63 Mi-17V-5 helicopters will be delivered to the Afghan army as part of joint efforts to combat international terrorism. total amount about 1.150 billion dollars. All helicopters are manufactured in the "night" version and are equipped with night vision goggles.
The Pentagon prefers the Russian Mi-17V-5
The next batch of three military transport helicopters, manufactured in Russia under a contract with the US Department of Defense, was supposed to go to Afghanistan in June. According to a source in the Russian military-industrial complex (DIC), at the moment, under a contract with the Pentagon, Rosoboronexport has to deliver five batches of Mi-17V-5 military transport helicopters, three units each, to Afghanistan.
The main contract for the supply of 21 helicopters, signed by Rosoboronexport with the US government on May 26, 2011, was completed by mid-2012. In 2013, Russia completed the transfer to the customer of 12 more military transport Mi-17V-5s under an agreement concluded as part of an option to the main contract.
In 2013, Rosoboronexport and the White House agreed and signed an agreement for an additional batch of 30 helicopters to be delivered in 2014. Their purpose is the joint struggle of countries against international terrorism.
In total, in accordance with bilateral agreements, the Afghan army will receive 63 Mi-17V-5 helicopters. All lighting equipment of the machines is adapted for the possibility of flying at night. total cost contract - about 1.2 billion dollars. The Russian helicopter acquisition activity is part of a broader US and ISAF (International Security Assistance Force) operation aimed at providing capacity building for the Afghan National Security Forces.
According to Western sources, the air corps of the Afghan National Army ANA (Afgan National Army) currently has ten attack Mi-24 / Mi-35, eight military transport Mi-8 and 48 Mi-17V-5, the total number of which by the end of the year will increase to 63 units. Under a contract with Rosoboronexport, the Mi-17V-5 is manufactured by the Kazan Helicopter Plant (KVZ). The vehicles supplied to Afghanistan have 17 Western-made components that have been integrated into Russian on-board equipment.
As experts noted, these Mi-17V-5s are capable of performing combat missions. “In accordance with the design agreed with the American side, the helicopters are being manufactured in a military transport version, which is equipped with weapons, in particular blocks of unguided rockets, cannon containers with a 23-millimeter cannon,” said a representative of the Russian defense industry.
Reliable in a storm
Prior to the direct contract with Rosoboronexport, the Americans tried to retrofit new Russian helicopters on their own at a repair base in the United Arab Emirates (the city of Sharzha). Today, under the contract for the supply of Mi-17V-5, all work is carried out at Kazan Helicopter Plant, which has proven to be effective both in terms of production time and the highest quality execution. They are carried out under the control of the helicopter developer - the Moscow Helicopter Plant, as well as representatives of the Russian Ministry of Defense. “Thanks to this, the American side, for the first time in its practice, received ready-made Mi-17V-5 helicopters that do not require modifications and meet the requirements and conditions of the region in which they are operated,” emphasized a source in the defense industry.
Formerly Deputy Director Federal Service on military-technical cooperation of Russia Vyacheslav Dzirkaln said that the US delegation visited the Kazan Helicopter Plant, where helicopters for Afghanistan are produced. “American representatives inspected the plant, including the fuselages already made. They were pleasantly surprised by the level of organization of production and the technical equipment of the enterprise,” said Dzirkaln. - We have constant contact with representatives of the US Department of Defense, a working group to control the implementation of the contract on both sides. There are no contradictions with American partners.”
According to CEO Rosoboronexport Anatoly Isaikin, the helicopter contract with the Pentagon was one of the most difficult due to conflicts related to US law. “We have never worked under such conditions,” he said. “Now we may have prospects for the supply of other types of weapons for the Afghan army under a similar scheme.”
Transportation of all helicopters assembled at Kazan Helicopter Plant is carried out to Kabul by An-124 Ruslan transport aircraft of Volga-Dnepr Airlines. On one flight, the An-124 delivers three vehicles to Afghanistan, placed in the cargo hold with the main rotor blades undocked.
“The US Department of Defense positively assesses the quality of the Mi-17V-5 helicopters received for Afghanistan from Rosoboronexport,” Dzirkaln emphasizes. According to him, the recognition of the high flight qualities and reliability of the Mi-17V-5 from the American side was the presentation on November 9, 2011 of a certificate of recognition of the procedures for ensuring and maintaining the airworthiness of helicopters existing in Russian Federation. US officials have repeatedly stated that they chose Russian helicopters because of their unprecedented high reliability, including in conditions that exist in deserts where severe sandstorms are not uncommon.
In a letter to the management of non-standard rotary-wing aircraft NSRWA (Non-Standard Rotary Wing Aircraft) of the Ministry ground forces It is noted that the Russian side has done an excellent job of adapting foreign flight and navigation instruments for the use of night vision goggles. A representative of the defense industry complex informed that from the very beginning of deliveries in 2011, the American side had no complaints about the quality of aircraft: “All helicopters arrived in Kabul on time, they were assembled, flown around, and after signing the appropriate acceptance certificate, the customer used them for their intended purpose. . The serviceability of the fleet of delivered Russian helicopters exceeds the required level of 80–90 percent, and this indicator meets all the requirements.” The source informed that the average annual flight time of one Mi-17V-5 in Afghanistan is more than 200 hours: "This figure is higher than the average annual flight time of ordinary operators."
The overhaul life of the Mi-17V-5 helicopter is 2000 hours or 8 years. At present, the Russian side is working to increase the helicopter's assigned resource (the time interval between the introduction of a rotorcraft into service and its disposal). Today, the service life of the Mi-17V-5 military transport helicopter can reach 35 years.
Despite the fact that the US government does not use the opportunity to purchase spare parts for the operation and repair of Mi-17V-5 helicopters directly from Russian special exporters, in the future, when overhauling the Americans, according to the source, they will still have to turn to the manufacturer. Abroad, of course, there are a number of enterprises that are able to work with Russian aircraft, for example, in the Czech Republic or the United Arab Emirates. Zaporozhye Motor Sich JSC has the ability to repair engines. “However, the US will have to turn to Russia for the maintenance of gearboxes, transmission bushings and so on – the manufacturer of these important components,” said the OPK official. According to him, in Afghanistan and Iraq, taking into account newly delivered and decommissioned helicopters, a total of more than 200 Russian-made aircraft are in operation.
Senators - against, military - for
Rosoboronexport drew the attention of the Pentagon to the need for proper and legitimate after-sales service for Russian Mi-17V-5s supplied to Afghanistan under a contract. According to the data available to the Russian side, at present, the expected need for overhaul and overhaul of all types of helicopters operated in Afghanistan and other countries in the interests of the United States is currently over 170 units.
"All the necessary conditions to carry out repair and restoration work and meet such a high demand for maintaining the airworthiness of previously delivered helicopters, the Russian side has them,” Anatoly Isaikin emphasized.
The US military considers the implementation of the contract for the supply of Russian helicopters for Afghanistan to be very important in the light of the fight against international terrorism and ensuring the build-up of the capabilities and potential of the Afghan national security forces. This was stated by the official representative of the Ministry of Defense George Little.
When asked to comment on the ongoing attempts by the Republican opposition in Congress to block further purchases of Russian military equipment for the Afghan armed forces, Little said that the vehicles being acquired are an important support for the Afghan Air Force: “They need just such a helicopter, it is very important for them, because it complements the fleet used helicopter technology.
Earlier, the Senate of the US Congress introduced an amendment to the bill on assistance to Ukraine regarding the severance of business relations between US government structures and Rosoboronexport. The submitted document contains a proposal to ban participation in US government contracts for any American or foreign company, in turn, interacting in the field of development, production and sales with Rosoboronexport. Prior to this, a number of members of the House of Representatives of Congress appealed to Secretary of Defense Chuck Hagel with a request to suspend cooperation with Russian exporter military equipment.
Despite the constant pressure from congressmen and calls for the imposition of sanctions, for the refusal to purchase Mi-17V-5s for the Afghan armed forces, the military takes a completely opposite position. “The problem is that Pentagon representatives are quietly asking them (congressmen) to postpone these measures, since Rosoboronexport is supplying helicopters used by the Afghan air force, which is currently experiencing difficulties,” Christian Science Monitor refers to sources in the Senate. "They use the word 'flexibility' in their conversations with us, which means they want us to make a major exception for Rosoboronexport," a congressional staffer told the paper.
The sanctions imposed against Russia do not affect the contract with Rosoboronexport for the purchase of Mi-17V-5 for the armed forces of Afghanistan, Rear Admiral John Kirby, Pentagon spokesman, confirmed in an interview with reporters. According to him, the Afghans are in dire need of Russian technology. “They are used to these cars. This helicopter meets their security needs,” Kirby explained. “Therefore, we continue to support them through this contract.”
It is a medium multi-purpose helicopter, which is used for passenger and freight traffic. It performs a wide range of tasks in any regions of the planet.
Development of the Mi-17 in the Design Bureau. M.L. Mile (now OAO Moscow Helicopter Plant named after M.L. Mil) was completed in 1980, and in 1981 it was first demonstrated at the aerospace exhibition in Paris (France). Mi-17 helicopters are manufactured by the Kazan Helicopter Plant and the Aviation Plant in Ulan-Ude, where more than 2,000 Mi-17 helicopters of various modifications have been built.
The design of the helicopter is basically the same as that of the Mi-8, with a number of units and systems from the Mi-14 helicopter. The Mi-17 outwardly differs from the Mi-8 by installing a tail rotor on the left side of the tail boom (instead of the right side on the Mi-8) and shortened engine nacelles, the air intakes of which are equipped with dust protection devices.
The main rotor is equipped with pendulum vibration dampers to reduce the level of vibrations. The main rotor blades are made of fiberglass and have the same geometric dimensions as those of the Mi-8 helicopter.
The power plant has a system for automatically maintaining the rotor speed and a system for synchronizing the operation of engines: in the event of a failure of one engine, the flight is continued with one engine operating in emergency mode. The helicopter is equipped with an AI-9V GTE auxiliary power unit for powering the air starters of the engines during their start-up and for supplying the on-board network with direct current when the engines are not running.
The equipment provides piloting of the helicopter day and night and in adverse weather conditions.
The helicopter is equipped with two TVZ-117MT NPO them. Klimov with a capacity of 1400 kW.
Flight performance
Max Speed– 250 km/h
Cruise speed - 230 km / h
Maximum flight range with main tanks - 610 km
Practical ceiling - 6,000 m
Static ceiling outside the zone of influence of the earth - 1,760 m
Mass characteristics
Maximum takeoff weight - 13,000 kg
Maximum payload on external sling - 4,000 kg
Maximum payload in the transport cabin - 4,000 kg
Cabin dimensions
Cabin length - 5, 34 m
Cabin width - 2.34 m
Cabin height - 1.8 m
Flight crew - 3 people
Passengers (in passenger seats) - up to 26 people.
The next important stage in the modernization of the Mi-8 was the equipping of it with TV3-117VM high-altitude engines, the first samples of which were tested in 1985. For two years, the Mil Design Bureau created a new basic model Mi-8MTV (Mi-17-1V in the export version), capable of taking off and landing at altitudes up to 4000 m and flying at altitudes up to 6000 m. In addition to ceilings, climb rate, range, etc. .d. The new base model was different modern equipment, including a meteorological radar station and a long-range navigation radio station, had reservations, sealed tanks with polyurethane foam filler, bow and stern PKT machine guns, six hanging beam holders and pivot mounts for paratroopers' weapons.
Taking into account the “Afghan” experience, the survivability of parts and assemblies of the helicopter was increased, and for the safety of operation, an emergency splashdown system developed jointly with French companies was installed on the Mi-8MTV. Development began in 1988 series production Mi-8MTV (Mi-8MTV-1) in Kazan. The basic model can be used in transport, airborne, air assault, ambulance, ferry versions, as well as in fire support helicopter and mine laying versions.
At the plant in Ulan-Ude, the Mi-8MTV went into production in 1991 with minor changes in equipment under the designation Mi-8AMT (export code - Mi-171). Ulan-Ude helicopter builders have already built several hundred of these machines. In 1997, the Mi-171 in Russia received a type certificate, and two years later - a type certificate in China according to the American FAR-29 standards in passenger and cargo versions for flying over land and water.
Following the Mi-8MTV-1 in the 1990s, the Kazan plant was followed by the basic modifications of the Mi-8MTV-2 and Mi-8MTV-3. Up to 30 paratroopers were placed in their cockpit. These vehicles had reinforced armor and upgraded systems. On the Mi-8MTV-3, only four of the six beam holders remained, but at the same time, the number of possible armament suspension options increased from 8 to 24. The helicopters received a tail rotor with an increased blade chord and increased rigidity of the control wiring, a parachute landing system and an onboard boom with a larger carrying capacity .
Mi-8MTV-3 in 1991 served as a prototype for the export modification of the Mi-172, which was certified in 1994 by the Indian aviation register according to the American FAR-29 standards. All the improvements tested on these modifications were introduced in 1992 on the new Mi-17M demonstration model. In addition, an international navigation system and an improved radar were installed on it, the side doors were enlarged, and the rear cargo hatch was redesigned according to the Mi-26 type (with reduced doors and a descending ramp). A large hatch in the floor made it possible to install an external suspension system with a load capacity of 5 tons.
This demonstration model served as the basis for the creation in 1997 of the Mi-8MTV-5 (Mi-17MD), which is very successful in the international aviation market. Under an agreement with a Canadian company, Kazan helicopter builders are also working on a joint modification of the Mi-17KF. In 1998, modified versions of the Mi-171 and Mi-172 received a domestic type certificate according to the American FAR-29 standards. They were assigned the designations Mi-171A and Mi-172A.
After the collapse of the USSR, the Mi-8 crews continue to perform their difficult military duty in the hot spots of Russia and the CIS. "Eights" were widely used during the conflicts in Nagorno-Karabakh, Abkhazia and Tajikistan. The unique high-altitude characteristics of the Mi-8MTV made them indispensable in high-altitude areas. Only they can provide fighting at altitudes above 3500-4000 m.
They were widely used during counterterrorist operations in Chechnya. In 1995, several Mi-8 squadrons operated here, which were used mainly for the transfer of personnel, their replacement in positions, the supply of ammunition and food, the removal of the wounded and sick, as well as the evacuation of refugees and the provision of comprehensive humanitarian assistance to the population.
Modification: Mi-8MTV
Main propeller diameter, m: 21.30
Tail rotor diameter, m: 3.91
Length, m: 18.42
Height, m: 5.34
Weight, kg
- empty: 7381
- normal takeoff: 11100
-maximum takeoff: 13000
Engine type: 2 x GTE TV3-117VM
- power, kW: 2 x 1639
Maximum speed, km/h: 250
Cruise speed, km/h: 230
Practical range, km: 500
Rate of climb, m/min: 540
Practical ceiling, m: 6000
Static ceiling, m: 3980
Crew, people: 2-3
Payload: up to 24 passengers or 12 stretchers with attendants or 4000 kg of cargo in the cabin or 4000 kg on the suspension.
Helicopter Mi-8MTV-1 in the parking lot.
Russian Air Force Mi-8MTV-2 helicopter towing.
Layout of the house, plans of houses and cottages
Small Business - Home Production Ideas
History of JANOME. Sewing machines. Janome, Veritas, Pfaff Sewing machine janome manufacturer country
Working with the tattis system
Properties of copper and its application