Military Review

PD-8 engine for SSJ-NEW aircraft will receive a new gas generator

64
PD-8 engine for SSJ-NEW aircraft will receive a new gas generator

In Russia, work continues on updating the fleet of gas turbine power plants of a new generation and class for the domestic short-haul passenger airliner SSJ-NEW. According to the press service of the United Engine Corporation, the company's team has assembled the first experimental gas generator for the promising PD-8 engine.


According to UEC representatives, if the design and development of a new generation power plant is successfully completed, it will be possible to equip not only SSJ-NEW with it, but also other aircraft of the same class.

Now, after the working prototype is ready, it will face the stage of critical bench tests to confirm the main parameters and characteristics declared by the engineers. A working sample will also be on display at the annual specialized exhibition of achievements aviation industry MAKS-2021, which will be held in July in the city of Zhukovsky near Moscow.

According to the manufacturer, during the design and experimental production work on the PD-8 engine, an assembly infrastructure was developed and manufactured, sensors were installed to monitor the condition of the product during testing, and the rotor of the new gas generator was assembled and balanced directly. The subject of observation will be the mechanisms for debugging the automation of control and control of the launch of the power plant.

The "heart" of the new PD-8 power plant, which is an important detail - the gas generator, has been assembled. Now the next step is testing and the most crucial moment - the first physical launch, then a public demonstration of what has been achieved

- said the deputy general director of the State Corporation "Rostec", which includes the UEC, Vladimir Artyakov.

The successful development of the new PD-8 unit was facilitated by the extensive experience of engine builders who worked on the “elder brother” of this power plant, the PD-14 engine, which is already intended for the domestic medium-haul MS-21 airliners.

The creators and developers have no doubt that the tests will fully confirm the characteristics and innovative solutions they have put into the product. One can be sure of this, if only because the project to create PD-8 (as well as other promising Russian engines) is being carried out in broad cooperation of UEC enterprises, as well as companies belonging to the Rostec holding.
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uecrus.com
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  1. seti
    seti 19 May 2021 08: 33
    +28
    We believe in you guys. Work for the good of the country.
    1. figwam
      figwam 19 May 2021 08: 37
      +15
      for the domestic passenger short-haul airliner SSJ-NEW
      Why does the domestic airliner have a set of incomprehensible overseas letters in its name?
      1. keeper03
        keeper03 19 May 2021 08: 46
        +5
        Indeed! No. Why did they leave the Soviet nomenclature? !! am soldier
      2. pyagomail.ru
        pyagomail.ru 19 May 2021 08: 59
        +16
        Quote: figvam
        a set of obscure overseas letters.

        It was conceived on the basis of broad cooperation with Western countries (electronics, hydraulics, engines, etc.) - it turned out to be unreliable. And the name "Dry Super Jet" was invented for this. And they pushed it into the foreign market, and they got burned: you need to have maintenance points, spare parts warehouses in the countries where it is operated (or nearby) - this was not the case. But in principle, I think we need to focus on providing domestic aircraft its civil aviation, through leasing, government procurement, and so on - an unplowed field for work on replacing Boeing, Airbus and other Embayers.
        1. Pete mitchell
          Pete mitchell 19 May 2021 09: 41
          +7
          Quote: pyagomail.ru
          It was conceived on the basis of broad cooperation with Western countries ...

          .. and SuperJet International was created to promote in foreign markets, they still have their hangar in Venice
          sorry it didn’t come together, but I fully support -
          Quote: pyagomail.ru
          you need to focus on providing domestic aircraft its Civil Aviation

          He would have to put the control system in order
          1. loki565
            loki565 19 May 2021 10: 23
            +5
            He would have to put the control system in order

            Rather, pilot training.
            and SuperJet International was created to promote in foreign markets, they still have their hangar in Venice

            He could be promoted to different countries, but he was unlucky, he got under the reorganization period.
            1. Pete mitchell
              Pete mitchell 19 May 2021 10: 29
              +3
              Quote: loki565
              Rather, pilot training.
              It's never superfluous.
              The guys who are associated with him voice questions specifically for the direct mode of the control system. Questions for preparation also remain open.
              1. loki565
                loki565 19 May 2021 10: 43
                +2
                It's never superfluous.
                The guys who are associated with him voice questions specifically for the direct mode of the control system. Questions for preparation also remain open.

                direct mode is essentially a control of the Tu 154 and old Boeing. It's just that pilots get used to the fact that the electronics itself sets the angles, pitch, does not allow the plane to fall into critical angles of attack, hit the runway with its tail during takeoff, and so on. And when it comes time to drive in the old fashioned way, the pilots are not ready for this. Although a Boeing pilot who has never flown a superjet has easily coped with it.
                1. Pete mitchell
                  Pete mitchell 19 May 2021 11: 07
                  +2
                  Quote: loki565
                  direct mode is basically a control ...

                  - youtube forever: this is such a new standard of learning, I have come across such - this is not a joke. But here's the funny thing: before quoting youtube ask yourself a question - what is the difference between direct mode SSJ and related A320; what is the difference between the training syllabus. Fly safe wink
                  1. loki565
                    loki565 19 May 2021 11: 48
                    +2
                    youtube forever: this is such a new standard of learning, I have come across such - this is not a joke. But here's a funny thing: before quoting youtube ask yourself a question - what is the difference between direct mode SSJ and related A320; what is the difference between the training syllabus. Fly safe

                    This is a current Boeing 737 pilot / instructor, before that he flew as a pilot / commander on a Tu154. I flew in different companies, including foreign ones, even developed CRM instructions so that he really has something to compare with. The SSJ simulator also has a European certificate like the A320, but although it may be the same bikes as the kitchen stories "guys who are connected with him"))) But still, much depends on the training and teamwork of the crew, otherwise even an ordinary flight can extreme)))
                    1. Pete mitchell
                      Pete mitchell 19 May 2021 12: 10
                      +3
                      Quote: loki565
                      But still, a lot depends on the training and coordination of the crew, otherwise even a normal flight can become extreme)

                      I hope that on July 1, you do not forget these words of yours, and do not succumb to kitchen conversations.
                      1. loki565
                        loki565 19 May 2021 12: 16
                        +1
                        I hope that on July 1, you do not forget these words of yours, and do not succumb to kitchen conversations.
                        laughing hi
                    2. Genry
                      Genry 19 May 2021 13: 27
                      +1
                      Quote: loki565
                      But still, a lot depends on the training and coordination of the crew, otherwise even a normal flight can become extreme)))

                      A delusional video discredits you. The conversation between the commander and the co-pilot is presented as a musical show with someone else's sound.

                      The Il-62 is an airplane where athletic strong pilots have always been taken, since sometimes four of us had to pull the controls (there are no hydraulic boosters) - and the teamwork was the most streamlined there.
                2. Alexander Seklitsky
                  Alexander Seklitsky 20 May 2021 00: 42
                  0
                  Quote: loki565
                  direct mode is essentially a control of the Tu 154 and old Boeing.

                  partly yes, but more like a flight simulator game. Unlike Boeing and Tupolev, there is no pilot feedback, and even the side sticks are not synchronized with each other.
            2. CastroRuiz
              CastroRuiz 19 May 2021 11: 47
              +1
              An intelligent beauty.
          2. AUL
            AUL 19 May 2021 10: 53
            -4
            Quote: Pete Mitchell
            ... and SuperJet International was created to promote in foreign markets, they still have their hangar in Venice

            Here is a cozy place for novice sons, daughters, nieces! Venice, no responsibility (there is no work), gondolas, shops ...
        2. Ka-52
          Ka-52 19 May 2021 11: 42
          +2
          But in principle, I think we need to focus on providing domestic aircraft for our civil aviation

          not to recapture the prime cost only at the expense of our market. It is good to fantasize, but fantasies do not cover the costs. Count yourself, in numbers. You don't think we go through all this bureaucratic haemorrhoids with certification for the sake of entertainment? I'm not talking about the cost of certification
        3. figwam
          figwam 19 May 2021 14: 15
          +2
          Quote: pyagomail.ru
          It was conceived

          Inside the country, it should be called in Russian and in Cyrillic.
      3. Ratmir_Ryazan
        Ratmir_Ryazan 19 May 2021 13: 52
        0
        In order to make it clear to everyone.

        Toyota is also written in Latin letters like other Japanese, Korean and Chinese names, and not in hieroglyphs, also with German and French products.

        The aircraft must be sold for export in order to recoup some of the costs of its development and production.
      4. Titus_2
        Titus_2 19 May 2021 21: 53
        0
        Then ask why the UAZ patriot is written in English letters.
      5. Intruder
        Intruder 20 May 2021 13: 00
        0
        Why does the domestic airliner have a set of incomprehensible overseas letters in its name?
        international standard, write a model in Latin, and suddenly someone from other countries wants to buy, while there is still no second international one! laughing
    2. Serpet
      Serpet 19 May 2021 08: 38
      +23
      Good luck to the developers. As history has shown, imports are not always reliable
  2. donavi49
    donavi49 19 May 2021 08: 33
    +3
    According to plans for testing at LL - 22 years. Then another certification. But by the age of 25 they should already be put into production wink
    1. Orange bigg
      Orange bigg 19 May 2021 08: 56
      +7
      PD-8 is planned to be ready in 2023, the cold section will be from SaM-146, the gas generator has already been assembled. This is not the only good news.

      ... UEC-Perm Motors and UEC-Aviadvigatel have planned to test the PD-2021 engine gas generator in September 35, according to the Telegram channel of the MAKS air show with reference to Alexander Inozemtsev, Managing Director - General Designer of UEC-Aviadvigatel JSC.

      “This year we will assemble and test the PD-35 gas generator in September. This is the "heart" of the engine, it is 70% of the technical and technological problems that can be detected during testing, ”he said.


      ... During this year, UEC will also test other PD-35 engine parts made of domestic composites, including a fan blade made of polymer composite materials, which will be manufactured using two different methods - using prepreg technology and 3D weaving technology.

      In 2022, the first samples of fan rotor blades should be obtained, which can subsequently be used not only on PD-35, but also on an updated version of the PD-14 engine, as well as in the interests of third-party customers.

      In the future, on the basis of PD-35, it is planned to create a family of aircraft engines of various thrust up to 50 tons. The start of ground tests of the engine is scheduled for mid-2023. The start of flight tests at the flying laboratory is scheduled for 2025. The type certificate for PD-35 is planned to be obtained in 2027.

      https://aviation21.ru/odk-ispytaet-gazogenerator-dvigatelya-pd-35-v-sentyabre-2021-goda/
      1. donavi49
        donavi49 19 May 2021 09: 03
        +2
        according to plans will be ready in 2023


        Skate tests in a year and get a certificate. Unrealistic.
        1. Orange bigg
          Orange bigg 19 May 2021 09: 07
          +2
          Our Stakhanovites can do anything.
          ... The PD-8 turbojet engine, which is planned to be used on the SSJ100 and Be-200 aircraft, will receive a type certificate in 2023. Vladimir Artyakov, the first deputy head of the state corporation Rostec, spoke about this in an interview with TASS.


          According to him, the development of a gas generator for PD-8 is planned to be completed next year, and the new turbojet engine will be certified in 2023.

          Enough funds have been allocated for the project, Artyakov noted. "The volume of investments is sufficient to ensure that all work on the creation of a new engine is carried out efficiently and on time," the top manager emphasized.

          https://aviation21.ru/dvigatel-pd-8-poluchit-sertifikat-tipa-v-2023-godu/
      2. Intruder
        Intruder 20 May 2021 13: 02
        0
        polymer composite materials,
        means they could!?, or did they buy consumable mixtures for composite polymer in Asia, believe that they could and could ... recourse
  3. ivpe211
    ivpe211 19 May 2021 08: 57
    -2
    Did they promise like on one "core" the whole family from PD8 to PD35?
    And it turns out from scratch?
    1. Orange bigg
      Orange bigg 19 May 2021 09: 03
      +5
      It will not work on one core. Different materials are needed, since temperatures differ significantly, say, in an 8-ton engine and in a 35-ton engine. Various technologies.
      1. ivpe211
        ivpe211 19 May 2021 09: 08
        -1
        Yeah? Why does the PW1000 do it? By simply changing the combination of compressor stages.
        1. Orange bigg
          Orange bigg 19 May 2021 09: 13
          +8
          So we also had such an idea to make PD-18 using a gearbox and based on PD-14 technologies. But it is better not to use a reducer. Not the same performance characteristics and not the same reliability.

          Why does the PW1000 do it?

          Take a look at the performance characteristics of the PW1000 engine family. Where did you see the 35-ton engine there?
        2. ism_ek
          ism_ek 19 May 2021 09: 23
          +2
          The article writes about a gas generator (combustion chamber), not a compressor.
          1. Piramidon
            Piramidon 19 May 2021 09: 39
            +5
            Quote: ism_ek
            The article writes about the gas generator (combustion chamber)

            A gas generator is not only a combustion chamber, but also a turbine, which is the most complex part of a gas generator.
            1. dauria
              dauria 19 May 2021 10: 58
              +2
              A gas generator is not only a combustion chamber, but also a turbine

              I generally came across the definition of a gas generator - the entire first circuit with a compressor. And the strapping to the screw reducer, or the fan of the secondary circuit, or the free turbine of the turboshaft does not apply any more.
          2. Intruder
            Intruder 20 May 2021 13: 08
            0
            write about a gas generator (combustion chamber), not a compressor.
            Not only the combustion chamber, but also the compressor is part of the gas generator, in the same place the outside air pressure is created in front of the combustion chamber:
            The term “gasifier” describes either a compressor and turbine combination providing hot, high pressure gas that enters an injection pipe and jet nozzle for turbojet engines, or a free power turbine for gas turbine engines. This gas generator design is commonly used for turbojet (or turbofan) engines as well as aero-derived free power turbine engines. In this case, the injection tube and jet nozzle are replaced by a power turbine and an exhaust system; for turbofan engines, remove the fan and bypass.

            Or, another version of terminology:
            Gas generator: A set of gas turbine engine components that produce hot gas under pressure for a process or to drive a power turbine. The gas generator consists of one or more compressors ... Official terminology
    2. Servisinzhener
      Servisinzhener 19 May 2021 09: 17
      0
      I consider the story here as with the D-30 engine. The PD series engines will have some common basis.
  4. Tooks
    Tooks 19 May 2021 09: 02
    -4
    And where are we going to use the PD-35, except for a joint plane with the Chinese?
    1. ivpe211
      ivpe211 19 May 2021 09: 08
      +7
      sort of like remaking the il96 for a twin-engine.
      1. Servisinzhener
        Servisinzhener 19 May 2021 09: 23
        +1
        It is very doubtful because will not fit under the wing. The planned fan diameter for PD-35 is 3100mm, and for PS-90 it is 1900mm.
    2. Abrosimov Sergey Olegovich
      Abrosimov Sergey Olegovich 19 May 2021 09: 15
      +4
      So it seems like they were going to revive the IL 96, but with two engines
    3. Orange bigg
      Orange bigg 19 May 2021 09: 16
      +6
      Quote: Tooks
      And where are we going to use the PD-35, except for a joint plane with the Chinese?


      And where else are engines with such a thrust used if not in wide-body long-haul passenger aircraft?
      1. Tooks
        Tooks 19 May 2021 09: 33
        -1
        Do you already have projects for such aircraft?
        1. Orange bigg
          Orange bigg 19 May 2021 10: 02
          +4
          Quote: Tooks
          Do you already have projects for such aircraft?


          CR929.
          TsAGI has studied the basic aerodynamic model of the joint Russian-Chinese SHFDMS CR929 with a sickle wing tip - cyberlets. The purpose of the next completed phase of testing was to determine the influence of deflection of controls and cruising aerodynamic characteristics of a wing with a very large narrowing, as TsAGI explained - "a record for domestic civil aircraft."


          Earlier, in the T-128 transonic wind tunnel of TsAGI, experimental studies of the thematic model CR929 with two wing options were carried out, and in December 2019, the purges of the High speed standard model (HSM) were performed, made at a scale of 1:39 in the fuselage plus configuration. wing.

          https://aviation21.ru/v-cagi-vypolnili-produvki-kryla-cr929-s-sajberletami/


          ... Construction of the first Russian-Chinese long-haul wide-body liner CR929 should begin this year. This was reported on January 23 by Yicai Global, quoting Yang Zhigang, chief engineer for preliminary research of COMAC.


          According to him, the launch of production means confirmation of the shape of the aircraft, its dimensions, the final selection of the main structural materials, approval of the main suppliers of systems and assemblies.


          “If this is possible, then we definitely hope that some of the main systems will have two or more suppliers,” said Yang Zhigang. He believes that this approach will provide an insurance mechanism for the creation of the liner.



          CR929 is being developed by the CRAIC joint venture, created in May 2017 by COMAC and the United Aircraft Corporation. The headquarters of the enterprise is located in Shanghai, where the serial production of the CR929 will also be organized. The base model CR929-600, with a capacity of 280 passengers, is comparable to the Boeing 787 and has a flight range of at least 12 kilometers.

          The publication writes that CR929 will be focused on China, Russia and the CIS countries as the main sales market, the Asia-Pacific region - a secondary one.

          Yicai Global announces the start of mass production in 2021 of the CR929 liner, however, it is obvious that the publication made a mistake, and if the construction of the first liner begins in Shanghai, it will be an experimental aircraft, which will first undergo factory development tests, and then certification.

          On July 8, 2020, it became known that due to the emerging difficulties in joint work with Chinese developers, the planned start date for serial deliveries of the aircraft is shifted to 2028-2029. Ravil Khakimov, Director General of Irkut Corporation, announced this at a meeting of the Economic Policy Committee of the Federation Council.

          https://aviation21.ru/v-kitae-soobshhili-o-nachale-stroitelstva-pervogo-lajnera-cr929-v-2021-godu/
          1. Tooks
            Tooks 19 May 2021 10: 10
            -4
            I wrote "except for the joint with the Chinese." Do you still have projects?

            In fact, the question is very controversial. If China and the United States manage not to slip into war, then the Chinese will most likely prefer the American engine. Or English. Or they will make every effort to bungle their own. So the prospects for the PD-35 are not as bright as we would like. In any case, we'll take a look.
            1. Orange bigg
              Orange bigg 19 May 2021 10: 26
              +5
              Well, perhaps a new modification of the Il-96-400M for two PD-35s. request No. In general, they first create an engine, and then an airplane for it, and not vice versa. The engine takes longer for the aircraft to be created. There will be an engine, there will be an aircraft, and not vice versa.
            2. Bad_gr
              Bad_gr 19 May 2021 16: 35
              +1
              Quote: Tooks
              I wrote "except for the joint with the Chinese." Do you still have projects?

              PD-35 woo Ruslan https://delint.ru/ehkonomika/9558-pd35-svatayut-za-ruslana.html
      2. Piramidon
        Piramidon 19 May 2021 12: 10
        +4
        Quote: OrangeBigg
        Quote: Tooks
        And where are we going to use the PD-35, except for a joint plane with the Chinese?


        And where else are engines with such a thrust used if not in wide-body long-haul passenger aircraft?

        And also in heavy transporters
    4. Servisinzhener
      Servisinzhener 19 May 2021 09: 18
      +6
      Most likely, either for the remotorization of the An-124, or for the aircraft that will be created to replace it.
  5. Tooks
    Tooks 19 May 2021 09: 35
    +1
    Quote: Servisinzhener
    Most likely, either for the remotorization of the An-124, or for the aircraft that will be created to replace it.

    An-124 has 4x23 = 92 tons. 2x35 = 70 or 4x35 = 140. Those. for remotorization of "Ruslan" are not suitable in any way.
    1. Hagen
      Hagen 19 May 2021 09: 48
      +4
      Quote: Tooks
      An-124 has 4x23 = 92 tons. 2x35 = 70 or 4x35 = 140. Those. for remotorization of "Ruslan" are not suitable in any way.

      It has long been said that it is planned to develop a heavy transport aircraft to replace the An-124. And since the airframe is developed much faster than the engine, it is reasonable that at this stage of the construction of the engine nothing is heard about the airframe. But this does not mean that they have forgotten about him. There is a certain movement of thought on the Ermak project. The planned start of scientific and technical work (R&D) - 2025.
    2. Genry
      Genry 19 May 2021 13: 06
      +1
      Quote: Tooks
      An-124 has 4x23 = 92 tons. 2x35 = 70 or 4x35 = 140. Those. for remotorization of "Ruslan" are not suitable in any way.

      PD-35 means a family of engines up to 50 tons.
  6. Tooks
    Tooks 19 May 2021 09: 51
    -3
    Quote: Hagen
    Quote: Tooks
    An-124 has 4x23 = 92 tons. 2x35 = 70 or 4x35 = 140. Those. for remotorization of "Ruslan" are not suitable in any way.

    It has long been said that it is planned to develop a heavy transport aircraft to replace the An-124. And since the airframe is developed much faster than the engine, it is reasonable that at this stage of the construction of the engine nothing is heard about the airframe. But this does not mean that they have forgotten about him. There is a certain movement of thought on the Ermak project. The planned start of scientific and technical work (R&D) - 2025.

    With such a thrust, an airplane of the Mriya dimension is obtained. I don’t know how much it will be in demand - it’s a difficult question.
  7. Tooks
    Tooks 19 May 2021 10: 34
    -1
    Quote: OrangeBigg
    Well, perhaps a new modification of the Il-96-400M for two PD-35s. request No. In general, they first create an engine, and then an airplane for it, and not vice versa. The engine takes longer for the aircraft to be created. There will be an engine, there will be an aircraft, and not vice versa.

    Well, what kind of modification? At the very least, you need to redesign the wing and landing gear. Those. actually design a new aircraft. He falls into the same class with 777. Can he compete? I don’t think so. Perhaps we could even produce several dozen aircraft. And for this you need to design a new aircraft? You can, of course, but stupid. We do not have the capacity to do this - we have much more urgent tasks.
    So it turns out that the prospects for the PD-35 are very vague. All hope is in China.
    1. Genry
      Genry 19 May 2021 13: 11
      +1
      Quote: Tooks
      At the very least, you need to redesign the wing and landing gear. Those. actually design a new aircraft.

      Even if the whole airframe .... The cost of the engines and the rest of the configuration is the main cost of the airplane. Remember how the pseudo-liberals screamed about the Superjet.
      1. Tooks
        Tooks 19 May 2021 13: 29
        +1
        What sales prospects will the new aircraft have for the redesign to make sense? At whose expense is the banquet?
        1. Genry
          Genry 19 May 2021 13: 48
          +2
          Quote: Tooks
          What sales prospects will the new aircraft have for the redesign to make sense?

          At first glance - you are right - there are no prospects.
          But the world is changing and commercial ties and even war has become possible. Cost-effectiveness is becoming more and more in demand and the sooner you switch the more benefits you will receive.
          Quote: Tooks
          At whose expense is the banquet?

          Russia participates in a project with the Chinese in CR929 - all aerodynamics and wing design. This experience can simply be taken and used.
          1. Tooks
            Tooks 19 May 2021 14: 24
            0
            It is clear that I would like my own. But I somehow strongly doubt a domestic aircraft of this size (under the PD-35). Here MS-21 can be very much in demand. So most likely the PD-35 will go either to the CR929 or to a domestic truck (you can make a twin-engine analogue of the C-17).
            1. Genry
              Genry 19 May 2021 14: 54
              +1
              Quote: Tooks
              I somehow strongly doubt a domestic aircraft of this dimension (under the PD-35).

              Your right to an opinion.
              But for me, several projects will require such an aircraft. For example: an air launch, a platform for a laser anti-satellite system, flying air defense systems (in places of possible massive missile strikes or to support depleted ground systems), an urgent transfer of human resources (civil and military) and cargo ... for rotational work in the north and temporarily developed areas (living there is constantly unprofitable) ...
              Quote: Tooks
              on a domestic truck.

              You probably wanted to say "transport worker".
        2. Intruder
          Intruder 20 May 2021 13: 15
          0
          What sales prospects will the new aircraft have for the redesign to make sense? At whose expense is the banquet?
          and for yours too, tax ... wink It will not be possible to sell, new subsidies in support will be requested from the budget and they will be easily unfastened from the country's bounty, no matter how much they ask, as if in the first ... lol This has happened many times with Russian industrialists! yes
  8. Martian
    Martian 19 May 2021 15: 43
    0
    SSJ-NEW - what the hell is this? Like Poghosyan sawed the loot and dumped to saw in MAI? There is nothing where the Armenians have visited .... How the locusts will clean everything .... The name of course is "SUPER ..". What is super there? When will they stop bragging and deceiving. As for PD-8, if it will be made for 8 years, then you can immediately bury it.
    1. Orange bigg
      Orange bigg 22 May 2021 08: 41
      0
      SSJ-NEW - what the hell is this?


      This is the same SSJ-100, but assembled from completely domestic components, that is, completely import-substituted.
  9. MelkorAintGood
    MelkorAintGood 20 May 2021 23: 27
    0
    It's funny to hear about PD-14, which is supposedly the "big brother". This is PD-8 (Russified SaM146) - de facto, is the older brother for PD-14, judging by the age of the structure
    1. Orange bigg
      Orange bigg 22 May 2021 08: 39
      -1
      SaM146 was produced in cooperation, where Russia made the cold part of the engine, and France made the hot one. Now Russia has made itself, without French technologies, its hot part, based on the technologies developed during the creation of a completely domestic PD-14. Therefore, the PD-8's "older brother" is precisely PD-14, on the basis of which the hot part of the PD was developed. -eight. PD-8 is not a Russified SaM8, since the French did not share with us the technologies of the hot part of the engine at the insistence of the United States, since the SaM146 engine uses American technologies, among other things. The hot part was created on the basis of PD-146 technologies.
      1. MelkorAintGood
        MelkorAintGood 23 May 2021 14: 31
        0
        HPC PD-8 was designed without the influence of PD-14, the Permians, in many ways, only interfered