Mi-38: a large helicopter for a small market


Photo: Russian Helicopters press service

Mi-38T in bright green livery

Turbulent hearts and heart


In the first part of the story it was mentioned that its first flight the Mi-38 made on Pratt & Whitney Canada PW-127T / S engines, and this in many respects was to ensure the machine’s access to the international market. But times have changed, and within the framework of the state import substitution program, as well as under the influence of high sanctions risks, the main motor for Mi-38 family helicopters is the domestic TV7-117V.

In 2008, Canadian Pratt & Whitney, due to the lack of permission to export its motors to Russia, was forced to abandon further cooperation with Russia. Therefore, I had to pay attention to the turboshaft version of the aircraft turboprop TV7-117CM from JSC "UEC-Klimov" and MMP them. V.V. Chernysheva, originating from the 80s.

Here you can make a digression and ask: what would happen to the domestic aviation motor industry, if not for various Western sanctions, prohibitions and restrictions? Could, in particular, survive in the UEC-Klimov from the United Engine Corporation in the event of widespread replacement of aircraft engines with western analogues?


Photo: UEC
TV7-117V

The development of the TV7-117V motor started on December 1, 1989 and was originally aimed at the Mi-38, but then there was an era of devastation. And in the late 90s, Canadians who had fussed in time actually provided the Milev "medium-heavy" rotorcraft with their engines. When they turned away, I had to turn to the UEC-Klimov JSC again. Be that as it may, the Klimovtsy on the architecture of the TV7-117 base engine created many power plants, starting from version C for the Il-114 and Il-114T aircraft and ending with the gas turbine TV7-117K for marine equipment - high-speed catamaran ships.

Work on the helicopter modification at the Klimov Design Bureau began almost immediately after leaving the game Pratt & Whitney Canada in 2009, and two years later the power plants were ready for flight tests on the Mi-38. One of the distinguishing features of the motor was a digital electronic control and monitoring system of the FADEC BARK-6V type. The main task of this unit is to optimize engine performance, reduce fuel consumption, as well as increase the life of individual components. The design is based on a compact and efficient centrifugal compressor with five axial stages and one centrifugal compressor. Unfortunately, the high pace of work inevitably affected the perfection of the motor design.
























Photo: Igor Kolokolov, igor113.lj.com
Mi-38 in flight and in detail

In 2012, the first Mi-38-2 OP-1 helicopters were assembled (Canadian engines were removed from the cars and delivered domestic) and OP-2, which they planned to show at MAKS-2013, but problems were found when combining the motor with the VR-382 gearbox. As a result, I had to modify the unit, pass it through a 300-hour test and only then put it on a helicopter.

Mi-38 with domestic engines first took off from the ground only on November 13, 2013. Over the next year, the motor was in trial operation, and in May 2015 it successfully passed 150-hour certification tests.

At the moment, a contract for the supply of 50 helicopter engines has been signed with Klimovtsi. Interestingly, the 2800-horsepower TV7-117V can potentially be installed on helicopters with the output of the power take-off shaft back - on the Mi-28 and Ka-50/52. To be completely accurate, a helicopter with domestic engines bears the name Mi-38-2 (it is sometimes still “renamed” as Mi-382), while a copy with Canadian engines is called Mi-38-1.

The dustproof device of the TV7-117V engines works more efficiently than the classic fungal type devices that we are used to seeing on Mi helicopters. The fact is that cars with “fungi” above the cockpit have restrictions on taxiing in a snow vortex in the temperature range from minus 5 to plus 5 degrees. In this range, snow turns into ice and a massive outgrowth forms, blocking the air supply. The Mi-38 dustproof device is devoid of this drawback and provides air preparation in any operating conditions in the range of the degree of purification of 95-98%.

An important advantage of the helicopter is the availability of an auxiliary power unit TA14-038 with a capacity of 30 kW from PJSC NPP Aerosila - the very “heart” without which the launch of the main motor would not have been possible. This is an important factor in the autonomy of the Russian helicopter, since on machines with Canadian engines the engine was started electric. In addition, the additional power plant of the helicopter provides air conditioning systems on the ground.

Key Benefits


What else can the latest Russian Mi-38 helicopter boast? First of all, four world records. True, they were beaten by a car with Canadian engines, but this does not detract from the merits of designers and testers. During the first flights, many parameters of the machine showed an excess over the calculated ones - for example, the thrust of the rotor on hover was 500 kg more than "on paper". By the way, the first Mi-38 flights in 2003 and further tests in general turned out to be resonant events. Test pilot Vladimir Kutanin received the Order of Courage from the president for work on the machine, and test pilot Alexander Klimov became the Hero of Russia. During the tests, the helicopter made at least 85 flights, as a result of which a number of changes were made to the OP-2 model: they improved the fuel and hydraulic equipment, the control system and the design of the blades. Mi-38 world records were broken in 2006 and they concerned a record flight altitude of 8170 meters with a mass of 11.100 kilograms and several more achievements in climb with and without cargo. Decent, although not a record, is the maximum speed of the car at 320 km / h, which approaches the limit parameters for helicopters in the classical sense.
























Photo: Igor Kolokolov, igor113.lj.com
Mi-38 in flight and in detail

The reason for the pride of helicopter builders is also the integrated complex of on-board equipment or IBKO-38 from the St. Petersburg Transas group. This avionics provides helicopter flights day and night, as well as in difficult climatic conditions. There are five 12,1-inch TDS-12 multifunction displays in the cockpit for displaying all the required information with a digital map of the area. The built-in GLONASS / GPS works together with the TNG-1G duplicated helicopter computing system, a map server and the TTA-12N early warning system for approaching the ground. The system provides instrumental approach according to the second category of ICAO, automatic flight en route, automatic approach, departure to the second circle, automatic hovering and flight stabilization in all flight modes. The high level of automation of the Mi-38 made it possible to abandon the third crew member - flight engineer, and in a critical situation, the flight can be continued by one pilot. Interestingly, the Mil Design Bureau still offers as an option the placement of a third crew member for ground handling in the event of an autonomous helicopter basing.

The Mi-38 helicopter would not have been a 38st century helicopter without a collimator synthetic vision system on the SVS windshield - this high-tech provides pilots with a “transparent cockpit” mode. They say that the IBKO-8 system is largely unified with the younger model from Mi-17 (XNUMX) and does not require a long adaptation period for pilots. By the way, in parallel with the development of the helicopter, the Transas group was working on a simulator for the new product. Engineers claim that such a practice of simultaneous work in Russia has not been practiced in many places before.

On November 23, 2018, the first flight of the most promising version of the helicopter took place - the Mi-38T transport and assault landing aircraft with a capacity of 40 people with aircraft number 38015. This machine is intended for the military, and at the moment two copies have been delivered to the military aviation. Among the options, factory workers offer the conversion of the helicopter into a sanitary version and the installation of an additional tank that increases the flight range to 1600 kilometers.

The year 2019 for the Mi-38 was marked by certification tests in extremely low temperatures. Test pilots completed 57 flights and 18 ground tests of power plants on the basis of the Mirny airport and the Nakyn site in Yakutia. After such successful experiments at temperatures below minus 45 degrees, the helicopter departed home in the hold of the Ruslan military transport in order to continue testing already on Elbrus. On the mountain peaks, the car showed successful operation at altitudes of up to 3 thousand meters above sea level.


photo: Russian Helicopters press service
Mi-38T




Photo: aviadrive.ru

At the moment, the world and domestic market (in Russia this is 9% of the market in general) of medium-heavy helicopters has already reached its saturation point, and the sales volume of the Mi-38 will be significantly lower than the lighter “best seller” of the Mi-8/17 line. But at the Kazan Helicopter Plant, along with the light Ansat, the main stake is made on a novelty of this class.

In any case, the competitiveness of the classic Mi-8/17 will someday come to an end, and the Mi-38 should partially replace it. Among the foreign analogues, one of the closest competitors is the Airbus Helicopter H225 with a carrying capacity of 5500 kilograms, but its cargo compartment is almost half that of the Russian Mi.

In the meantime, the plant is loaded with defense orders for the Mi-38T version, there is news about the first planned foreign deliveries and great hope for contracts with other law enforcement agencies and government agencies. In accordance with the program “Development of the aviation industry for 2013-2025”, Mi-38 sales are planned for 2025 aircraft by 175, and 2030 helicopters by 264. History will show how optimistic these forecasts were.
Author:
Photos used:
igor113.livejournal.com, aviadrive.ru, zhukvesti.ru, tass.ru, naked-science.ru
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  1. Voltsky 5 February 2020 18: 08 New
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    damn PPC how ugly, but for some reason I like it visually
    1. rocket757 5 February 2020 18: 32 New
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      Normally, our helicopters look much more interesting than the imported ones of the same class!
      The main thing is “what would the suit be like” ... this bird, did its job well.
      1. Voltsky 5 February 2020 18: 50 New
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        I would say that by and large Russian technology always looks brutal for some reason, sexier or something.
        1. dauria 6 February 2020 00: 22 New
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          that Russian technology by and large always always looks more brutal for some reason,


          Just the Mi-38 doesn’t look “miley”. And for import. This arrangement, when the gearbox with a screw in front, and the rear engines, we have not used before. Therefore, the eights and nose are short, and it looks neat. And here the unusually long nose of the fuselage. And yet - on the eighth, the bortachik opened the hatch at the top of the cab, climbed up, pulled back the hoods - and voila, everything is nearby, everything is visible. From ROM to gearbox. Go to the beam itself without any steps. At least sit on a sleeve. Now how?
          What about beauty? First let it fly as much as eights with sixes, and then we'll see about beauty.
        2. Stalllker 6 February 2020 01: 52 New
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          Some technophile request
      2. donavi49 5 February 2020 19: 23 New
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        Well, here are his classmates rivals.



    2. Edik 5 February 2020 18: 34 New
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      Quote: Voletsky
      damn PPC how ugly, but for some reason I like it visually

      It seems to me that our planes with helicopters have always been the most beautiful! Well this is in my opinion, for some it is not request
      1. Voltsky 5 February 2020 20: 00 New
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        always not, let’s say the twinks aren’t especially and especially the scorpion, but there’s PPC ... in other ways and minuses, I got PPC when I spoke about its beauty :)
        and the bug is beautiful both in name and in design ... but there appeared an "athlete" .... damn give one of them and a diesel car so that I can ride and I will decide which is better

        flight plans
        1. Su-xnumx
        2. F-14 Tomcat
        3. Su-xnumx
        4 F-18
        5. Rafal - something with something :)
      2. not main 5 February 2020 23: 37 New
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        Quote: Edik
        Quote: Voletsky
        damn PPC how ugly, but for some reason I like it visually

        It seems to me that our planes with helicopters have always been the most beautiful! Well this is in my opinion, for some it is not request

        I fully share your view! And he put a plus ... what a surprise I had when I saw that there were already 4 pluses and 4 minuses! What is it like? Yes, prettier MT-shki ... although there are easily opponents who say: 24-ka, 6-ka and even 2-ka, 26 separate song. It's just that they are ALL beautiful and fly the same way!
    3. 1959ain 5 February 2020 18: 41 New
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      Tse Europe helped us, it’s good that I didn’t rob the threads, at least I left
    4. Petrol cutter 5 February 2020 19: 35 New
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      "damn PPC how ugly, but for some reason I like it visually"
      Hello. Arrived ...
      Looks much more beautiful and dynamic than the figure-eight. Largely thanks to the nose fairing. And on the roof, the fairing pleasantly “delivers” to the eye.
      Thanks to the author as always.
      As for the carrying capacity in my opinion, not an enlightened look, more, no less.
      1. Jack O'Neill 5 February 2020 20: 59 New
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        It's all a matter of taste. You have one, but Voltsky others.
        For example, for example, I generally consider the NH-90 the most beautiful in this class.
        1. Kote Pan Kokhanka 6 February 2020 09: 22 New
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          Every man to his own taste!
          Although Milevtsy licking the “38” contours put purely technical and aerodynamic tasks at the edge of the corner.
    5. Archon 4 May 2020 04: 57 New
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      Looks like a regular helicopter. can be confused with analogues
  2. xomaNN 5 February 2020 18: 31 New
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    We can when I press .. (oh, bells) and the motor do it yourself!

    And then shame, for Sukhoi airliners - an alien engine. for the Navy - in general there was a disaster, 100% hope for a "brotherly" uk..r. "dawn-mash." laughing And as a result, the hulls of NK are standing against the wall without completion at the shipyards of St. Petersburg and Kalgrad
    1. Genry 5 February 2020 19: 23 New
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      Quote: xomaNN
      And then shame, for Sukhoi airliners - an alien engine.

      The engine "alien" is only 50% in detail and the final assembly of its own.
      Quote: xomaNN
      for the Navy - in general there was a disaster, 100% hope for a "brotherly" uk..r. "dawn-mash."

      Now Ukrainians are "licking a finger" tongue with the collapse of its production without orders.
      1. bayard 6 February 2020 12: 52 New
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        Quote: Genry
        Now Ukrainians are "licking a finger" with the collapse of their production without orders.

        Yes the information passed that nikolayevets plow in 2 - 3 shifts on the Chinese orders. And thanks to their participation in Chinese shipbuilding programs, the Chinese are breaking records for commissioning a ship - there were not enough ship turbine capacities.
        Now it’s enough - for tonnage, 4 times more Americans are handed over per year.
        Maybe precisely because of such congestion on Chinese orders Rybinsk did not wait for personnel from Nikolaev - there was enough work at home.
        It's a pity . Rybinsk will not be able to reach the pace himself soon ... Personnel ...
  3. Sergey39 5 February 2020 18: 35 New
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    "And what would happen to the domestic aircraft engine industry, if not for the various Western sanctions, bans and restrictions?"
    It remains to be hoped that they will never be canceled. Well, or the government will take up the mind.
    1. zloybond 6 February 2020 09: 24 New
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      I think here we have with the mattress a treaty by mutual “sanctions” and “insults” to drive import out of the markets and raise our own. In general, our trade infuriates - all for palm oil. Shame on the country.
  4. exo
    exo 5 February 2020 18: 45 New
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    Pleasant helicopter. I would like to see it with the external arms.
    Let's hope that the engine has lost its "children's" problems and surprises, it will not present.
    1. Mihail2019 5 February 2020 19: 55 New
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      Well, on the G2, Klimovskie TV3, then TV7, originally stood. Now there is a series of TVXNUMX. Why did I have to count on Pratt-Whitney, I personally do not understand. The only explanation is our usual one: "Well, these are Western firms!" In short, Western worship everywhere and in everything!
      Although the "eight" certificates of airworthiness from "them", as far as I know, and with our full-time engines received ..
      1. helmi8 5 February 2020 22: 28 New
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        Quote: Michael2019
        Well, on the G2, Klimovskie TV3, then TV7, originally stood. Now there is a series of TVXNUMX. Why did I have to count on Pratt-Whitney, I personally do not understand

        TV2 was going to Perm, and TV3 to Zaporozhye. Only in 2014 did St. Petersburg begin to produce VK-2500 to replace TV3 ... And before that, it depended on supplies from Zaporozhye.
      2. Kote Pan Kokhanka 6 February 2020 09: 21 New
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        Quote: Michael2019
        Well, on the G2, Klimovskie TV3, then TV7, originally stood. Now there is a series of TVXNUMX. Why did I have to count on Pratt-Whitney, I personally do not understand. The only explanation is our usual one: "Well, these are Western firms!" In short, Western worship everywhere and in everything!
        Although the "eight" certificates of airworthiness from "them", as far as I know, and with our full-time engines received ..

        We had a project, but to implement it in the distant 90s, investments were needed. From here and jumping from side to side. That’s what they say “grin of capitalism”! On the other hand, the Mi-38 with Canadian turbines had a higher commercial potential in the west, at least because of the service base, but it did not grow together. So "Canada" with a cart, the mare is easier! I think the first ones also bite their elbows and look unkindly at the hegimon from the south.
  5. Orkraider 5 February 2020 19: 37 New
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    hi
    Thank you for the article!
    And there is publicly available information about the number of
    while the plant is loaded with defense orders for the Mi-38T version
    under this contract?
    I do not recall the news about the state contract. There was information about the delivery of an experimental batch of two cars, and that based on it, a decision would be made on the order.

    Although, if you recall the contract with the UEC at MAKS 2015 (at 50 TV7−117V), then we can assume the number of machines wink
  6. Alex 2020 5 February 2020 20: 53 New
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    After such successful experiments at temperatures below minus 45 degrees, the plane departed home in the hold of the Ruslan military transport
    It seems like an article about the Mi-38 helicopter .... And where did the cargo hold from transport planes? Of course, many terms came to aviation from the fleet, but the hold ... I hear it for the first time. laughing
    1. Svetlana 5 February 2020 21: 15 New
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      Board, airship ... = hold
  7. Svetlana 5 February 2020 21: 14 New
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    Sanctions, sanctions .. Do not be them, and motor industry as well as agriculture has withered.
    But is it time for them to impose sanctions on cars? winked
  8. Zaurbek 5 February 2020 21: 25 New
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    If you put all the chips from Mi8 on the Mi17-38, there will be a lot of internal competition
    1. exo
      exo 5 February 2020 22: 21 New
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      Of course, they won’t deliver everything, but avionics will appear on the new modifications of the Mi-17 family. As for the dust system, I can’t say. I don’t know how she is “friends” with TV 3-117
      1. Zaurbek 6 February 2020 08: 37 New
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        Therefore, it is necessary to stop the release of 8/17 on time and begin the release of the 35th. And instead of 8/17, do something smaller. Type Ka62 or slightly larger. But we do not have a theater of the required capacity.
  9. Private-K 5 February 2020 22: 52 New
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    The competitor EC725 (military) H225M (civilian) has a drawback compared to the Mi-38: the Mi-38 has a rear ramp for loading / unloading, including self-propelled transport, but the Frenchman does not have one.
    In addition, the Mi-38 has a wider (as much as half a meter) and long (as much as a meter) cabin (but the Frenchman himself is slightly smaller and lighter than Milevsky).
    IMHO, the closest analogue of the Mi-38 is the Italo-British AW101. And by weight data, and by dimensions - almost one to one. But the AW101 already three engine i.e. thrust ratio is much higher. And you can put two lineups: one from Rolls-Royce Tubomeka, the other from General Electric.
  10. L-39NG 6 February 2020 14: 15 New
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    LATE! Too late guys.
    1. Petrol cutter 6 February 2020 20: 51 New
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      And what happened?! .. I am a witness ... what