On May 18, 2021, AEX.RU - A. Lulka Design Bureau - a subsidiary of"ODK-UMPO"is working on the formation of a scientific and technical backbone to create a sixth-generation engine for combat aviation. "This is a three-contour scheme, which the whole world is doing," Evgeny Marchukov, general designer of the Design Bureau, said at the ICAM-2020 conference. This is reported by the press service of the MAKSAir Show.
According to him, two options for implementing this scheme are being developed. The first stand tests of the demonstrator are due to take place in 2021. Using a three-contour scheme will allow to modernize the al-41F-1engine, improving its characteristics while maintaining dimensions.
In addition, as part of the creation of the NTH OCB, I.A. Lulki is engaged in such areas as a combustion chamber with wave detonation, a pulsating resonative detonation engine with a two-stage burning of kerosene-air mixture.
Fascinating. Is that izd 30? Looks like it has the same cold air bypass as it seems to show on the new tempest fighter. Perfect for cooling the exhaust, especially if aerosols are added!
Fascinating. Is that izd 30? Looks like it has the same cold air bypass as it seems to show on the new tempest fighter. Perfect for cooling the exhaust, especially if aerosols are added!
I am a little confused here, so this question is more like a survey. The F-35, NGAD and Russia's 6th gen I am assuming are heading for a 3 stream cycle engine design, correct? Is the FCAS really going for SABRE and Tempest going for reaction engines for near hypersonic speeds or will they just settle down for a 3 stream cycle engine design? I see more promise with a 6th gen interceptor Mig-41 getting detonation engines https://tass.ru/ekonomika/11103513https://www.militarynews.ru/story.asp?lang=RU&nid=516338&rid= for a near hypersonic design than I do of the other two in my own opinion.
I am a little confused here, so this question is more like a survey. The F-35, NGAD and Russia's 6th gen I am assuming are heading for a 3 stream cycle engine design, correct? Is the FCAS really going for SABRE and Tempest going for reaction engines for near hypersonic speeds or will they just settle down for a 3 stream cycle engine design? I see more promise with a 6th gen interceptor Mig-41 getting detonation engines https://tass.ru/ekonomika/11103513https://www.militarynews.ru/story.asp?lang=RU&nid=516338&rid= for a near hypersonic design than I do of the other two in my own opinion.
From everything I have read, the temperatures and pressures to less parts and better efficiency this sounds like a huge leap for the ruskies. They are already planning on using the izd30 core for future engines (like a three stream variant potentially for the mig41) and they have essentially given the timeline for 2024 when pre production engines will be installed for final testing. I can see why it has taken so long. After reading about fighters for so long it really does show that the engines are essentially as complex to develop as the whole fighter itself.
Yeah, the AL-31F family has been in active use and development since 1985 until literally today and even further (still apparently seeing development of a 16 tf version of AL-41F-1 for LTS). That is more than 40 years, until a substitute in the form of izd. 30 with new layout and design philosophy appears in the series after 2025. UEC openly talks about it as the new platform on which they will develop their engines for the next 40-50 years. Small correction though, as per the roadmap proposed by UEC, the PAK-DP should use the current core of the izd. 30, while the 6th gen plane would use a three streams engine currently under development but based on a further evolution of the technologies learnt from the izd. 30.
I published this post before, but I deleted it because I thought it was info already published in this magnificent forum. If so, please delete it. Thanks!
Based on the Izdeliye 30 engine, Saturn-Lyulka is working on a variable cycle (three circuits) military engine. According to Evgeny Marchukov, OKB Lyulka, two versions of this scheme are being developed. The first bench tests of the demonstrator should have started sometime in 2021.
Based on the Izdeliye 30 engine, Saturn-Lyulka is working on a variable cycle (three circuits) military engine. According to Evgeny Marchukov, OKB Lyulka, two versions of this scheme are being developed. The first bench tests of the demonstrator should have started sometime in 2021.
It is questionable if the new VCE (ACE) is based on the Izdeliye 30/AL-51F at all. What Ye.Marchukov said on ICAM-2020 is that they develop new 6th gen engine . Next was his statement about the three circuit scheme as he mentioned. Are those two 'details' are in relationship, it is questionable. He also said that there are two variants of that scheme. Static tests of the engine-demonstrator had to begin during 2021.Now this is interesting ( from the second left attachment) :
''использование трёхконтурной схемы позволяет модернизировать двигатель АЛ-41Ф-1.''
"The use of a three-circuit design allows for the modernization of the AL-41F-1 engine."
So he mentioned Izdeliye 117 ,not Izd 30.
Now this is also very interesting, this is news from Nov 2016 in relation with the beginning of the static tests of the Izdeliye 30.
''Объединенная двигателестроительная корпорация (входит в Госкорпорацию Ростех) провела первый наземный запуск перспективного двигателя для самолета ПАК ФА (Т-50). Тестовое включение прошло успешно.
Разработку двигателя ведет «ОКБ им. А. Люльки» (московский филиал ПАО «УМПО», входит в ОДК) под руководством генерального конструктора — директора Евгения Марчукова.
Запуск двигателя-демонстратора был проведен на Лыткаринском машиностроительном заводе, являющемся филиалом ПАО «УМПО».
«ОДК продолжает работу по созданию новой силовой установки для российского самолета пятого поколения, — говорит генеральный директор АО „ОДК“ Александр Артюхов. — При изготовлении двигателя-демонстратора были применены новые конструктивные решения, не имеющие аналогов в отечественном двигателестроении».
Помимо двигателя-демонстратора для проведения стендовых испытаний также отдельно изготовлены газогенераторы нового двигателя.''
''The United Engine Corporation (part of the Rostec State Corporation) conducted the first ground test of the advanced engine for the PAK FA (T-50) aircraft. The test was successful.
The engine is being developed by the A. Lyulka Design Bureau (the Moscow branch of PJSC UMPO, part of UEC) under the leadership of Chief Designer and Director Evgeny Marchukov.
The launch of the demonstrator engine was carried out at the Lytkarino Machine-Building Plant, a branch of PJSC UMPO. "UEC continues to work on developing a new power plant for the Russian fifth-generation aircraft," says Alexander Artyukhov, CEO of JSC UEC. "New design solutions, unmatched in domestic engine manufacturing, were used in the production of the demonstrator engine."
In addition to the demonstrator engine, gas generators for the new engine were also manufactured separately for bench testing.''
Underlined is of course about the Izdeliye 30 . Bolded is about the new engine and I underlined details about that three circuit ,it must be about it. So in the time when Izd 30 was conducting static tests , new engine was in R&D phase.
Here on the 10th page we can see the scheme of the 6th gen engine with title : ''НТЗ для двигателя «6» поколения – перспективныенаправления развития боевых ГТД '' or ''Scientific and technical groundwork for the 6th-generation engine – promising development directions for combat gas turbine engines''
On the next 11th page we can see : ''Двигатель ПАО «ОДК-УМПО»-демонстратор технологии третьего контура'' or ''Third-circuit technology demonstrator engine''
Than on the 20th page we have this : 'Разработка конструкции ПлРС' ( Плоское Регулируемое Сопло) or 'Development of the design of the flat adjustable nozzle'. My opinion is that demonstrator of the VCE got that new flat adjustable nozzle ,not Izdeliye 30/AL-51F.
https://www.secretprojects.co.uk/th...lopment-operations-2012-current.15626/page-83
On the upper photo we can see T-50-2LL with Izd 30 and with the letters ''LL'' ( Flying Laboratory ) designation on the vertical stabilizer.On the bottom photo we can see T-50-2LL with the new VCE/ACE equipped with that flat adjustable nozzle,also we can see Su-57M logo on the vert. stabilizer. Many sources ( even Russian ) mentioned that it is AL-51F/F-1 or Izd 30 with the flat nozzle. If that is correct, why they changed the plating of the left engine nacelle?
P.S.
This is also important for this thread :
Post No 384 and the details about VCE from the 2013 interview with Yuriy Shmotin.
Multirole fighters of the "4++" and "5" generations were developed and modernized with decades of service in mind. However, sixth-generation combat aircraft will likely be largely fully autonomous unmanned systems. Evgeny Marchukov notes: "The mechanism for penetrating a protected area has long since changed: the primary role is now assigned to a large number of small, stealthy, well-armed intelligent aircraft—drones. The features of a sixth-generation power plant include a third circuit, adaptive turbine and compressor units, ceramic composite materials, additive manufacturing technologies, high-power power generation, electric drives, intelligent control systems, an aircraft cooling system, special characteristics, and more complete integration with the aircraft structure. Next-generation turbojet engines are projected to have a 10% lower cruising specific fuel consumption. Hybrid and distributed power plant designs are expected to reduce specific fuel consumption by up to 25-30%. It is estimated that by 2035, the share of non-metallic materials in aircraft engines should be approximately 30%. According to calculations, the characteristics of operational-tactical aviation at the turn of the 30s will include the mandatory use of artificial intelligence for piloting, increased range and autonomy, the use of weapons based on new physical principles, and, of course, low observability. By 2035, we expect a total of approximately 39 technologies. Currently, we have selected seven critical technologies of greatest interest.
To summarize briefly: the gas turbine engine is perhaps the most complex mechanical system devised by man. A fundamentally new engine, which in its parameters will significantly surpass Compared to previous generations, it will no longer be possible to create it without new materials. In addition to innovative materials (composite, polymer, and ceramic), new processing methods are needed, as well as more advanced calculation methods to reduce engine fine-tuning time. In my opinion, detonation engines will be a separate and very promising area. An engine in which fuel detonates is theoretically characterized by record-breaking specific power. We already have many developments
on this topic, and we will continue to develop it."
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