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    Russian Civil Aviation: News #5

    GarryB
    GarryB


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    Post  GarryB Fri Aug 30, 2024 3:44 pm

    They should see this as an opportunity to get rid of some old obsolete stuff like foreign engines, and get some new better more efficient Russian engines into service and widespread use.

    Even MiG made an upgraded version of the An-2 where they made both wings fully articulated with leading edge flaps and slats, so you could have thinner wings that still generated a lot of lift for low speed landings and takeoffs from short rough strips, but also could raise the flaps and slats and have thin low profile low drag wings for higher speed flight to get places faster as well as operate from short rough airstrips when needed.

    Playing around with this or that aircraft design is a waste of time without a decent cheap reliable engine to put into it.

    The VK-650 is supposed to be rather simple and cheap, so making an An-2 replacement with two engines of this type... perhaps in the back running an electric motor in the nose might work out to be a good solution.

    Continuing to use Ukrainian planes and American engines is not progress.

    They need to sort out the domestic production of composite materials for civilian aircraft too... but engines should be a focus.

    The core problem is that this area was neglected for so long and was not seen as a problem... even now as mentioned in the article it says the An-2 can continue for another decade with overhauls...

    Too many companies and people with vested interests in American and Ukrainian products.

    Yes but this turboshaft (helicopter engine) is not the RD-600v, but the VK-1600V. The RD-600V was a stillborn Saturn project, but it has been probably canceled in favour of the the Klimov VK-1600.

    According to UAC the VK-650V are going to be used on the ANSAT and Ka-226 helicopters, while the rather more powerful VK-1600v is for the bigger Ka-62 and other medium helicopter types.

    https://www.uecrus.com/products-and-services/products/vertolyety/dvigatel-vk-650v/

    Of course, the An-2 will need special exceptions in the rule to allow 12 or 13 passengers instead of 9 (max allowed by current rules for single engine aircrafts).

    Or just limit them to 9 people plus cargo... or using two engines in a new configuration the limit is no longer a problem.
    GarryB
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    Post  GarryB Wed Sep 04, 2024 6:38 pm

    The VK-650V has completed tests and is being tested on the Ansat. It will also be used on the Ka-226 helicopter, the Altius twin engined drone, and the Yak-152 trainer instead of the german engine.

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    GarryB
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    Post  GarryB Wed Sep 04, 2024 6:57 pm

    How did we miss this video about the R 579-300 engine?

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    Rodion_Romanovic
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    Post  Rodion_Romanovic Thu Sep 05, 2024 2:30 pm

    https://aviation21.ru/rospatent-zaregistriroval-izobretenie-osnovnaya-opora-shassi-samolyota/

    Rospatent has registered the invention "Main landing gear of an aircraft"
    03.09.2024,

    Most modern passenger aircraft are designed with engines mounted under the wing. Because of this, the main landing gear legs must be high enough to keep the large-diameter turbofan engines at a safe height above the runway surface. In the event of an abnormal landing, the wing may be subjected to forces from the landing gear leg, which experiences impact loads higher than the design values, which may cause the wing structure to fail, fuel to leak from the fuel tanks located within it, and it may catch fire.

    On May 5, 2019, as a result of a rough landing of the Superjet 100 aircraft at Sheremetyevo Airport, the main landing gear pierced the fuel tanks located in the wing consoles. As a result, the fuselage and engine nacelles touched the runway, the resulting sparks ignited the leaking fuel, and 40 passengers and one crew member died in the crash.

    The RA-89098 accident was caused by a three-runway landing with overloads of at least 2.55 g, 5.85 g and 5.0 g. The Superjet received its type certificate taking into account that the design of the chassis attachment to the rear wing spar must withstand impact loads of 3.75 g. When this value is exceeded, the fuel tank damage protection system is activated: the safety pins of the main landing gear attachment to the rear wing spar are cut off, as a result of which they are in an unfixed state relative to the rear spar.

    The first touchdown of the runway did not exceed the design value. After the second touchdown with a load of 5.85 g, the safety pins of both landing gear legs were cut off. During the third touchdown of the runway, also with an excess of permissible vertical loads, the condition of the structure did not allow the landing gear legs to safely withstand the landing impact, they broke, the wing was destroyed in the areas of the suspension units of the retraction/extension hydraulic cylinders of the legs, the aircraft lowered and moved further along the runway surface on the engine nacelles and the tail section of the fuselage, which led to a kerosene leak and its ignition.

    The design of the aircraft's main landing gear, for which PJSC Yakovlev received a patent on August 16, 2024, makes it possible to prevent such destruction.

    In accordance with the requirements of the Aviation Regulations (AP-25, section 25.721, p. 91) the chassis must be designed in such a way that their destruction during takeoff and landing due to exceeding the design loads does not cause a fuel leak in an amount sufficient to create a fire hazard. In the patentRU2824229The design elements of the main chassis support with hinge joints located in a certain way are described.

    In the event of an abnormal situation during landing of an aircraft with the landing gear extended, made according to the proposed solution, the shock absorber strut housing moves upward and forward until it contacts the curved surface, which will lead to the destruction of the hinge assemblies and separation of the chassis strut housing with the shock absorber from the strut, the description of the invention states.

    In this case, the destruction and separation of the shock absorber housing will occur before damage to the wing structure elements begins, thereby reducing the likelihood of fuel leakage and fire.

    The old landing Gear was made by Safran landing system (formerly Messier-Bugatti-Dowty).

    I remember that the airline S7 wanted a redesign of landing gear and tanks after that tragic accident, in order to guarantee a relatively large order for the shortened 75 passenger version of the SJ-100.

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    Kiko
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    Post  Kiko Thu Sep 05, 2024 4:06 pm

    Putin demanded to speed up the creation of a passenger version of the Baikal aircraft, by Dmitry Zubarev for VZGLYAD. 09.05.2024.

    The development of a passenger version of the Baikal aircraft must be accelerated, and its serial production must be launched in the near future, President Vladimir Putin said at the plenary session of the Eastern Economic Forum.

    "We need to build our own aircraft, reliable, high-quality and in the required quantities. In this regard, I ask you to speed up the development of the passenger version of the light multi-purpose aircraft "Baikal". We need to launch its serial production in the near future," TASS reports Putin as saying.

    Earlier, Putin called the Far East the flagship in the new global economic reality.

    https://vz.ru/news/2024/9/5/1285566.html

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    Kiko
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    Post  Kiko Thu Sep 05, 2024 5:13 pm

    Baikal aircraft deliveries postponed to 2026, 09.05.2024.

    Deliveries of Baikal aircraft to replace the An-2 are being pushed back to 2026. The authorities explain this by the fact that the project initially relied on the use of a foreign engine and propeller in the aircraft.

    The first deliveries of Baikal aircraft (LMS-901) to airlines are being shifted from 2025 to 2026. This was reported to journalists on the sidelines of the EEF by First Deputy Prime Minister Denis Manturov.

    "In 2022, life changed, and now we can only count on the Russian VK-800 engine, a Russian propeller, which will be ready with certification by the end of 2025. And 2026 is already certification directly on the aircraft and the start of deliveries to airlines that have confirmed their readiness to purchase this aircraft," he said . In 2019, when the competition for the selection of this project was held, the Ministry of Industry and Trade counted on the use of a foreign engine and propeller in the aircraft, the Deputy Prime Minister added.

    An RBC source familiar with the situation also said that the Ministry of Industry and Trade reported the shift in Baikal deliveries to President Vladimir Putin at a meeting on the development of infrastructure in the Far Eastern Federal District, which took place on September 4.

    As follows from the transcript of the public part of the meeting, it began with Vladimir Putin saying that the country needs a regional aircraft. "Yuri Petrovich Trutnev (Deputy Prime Minister. — RBC ) reported, and I, in fact, know from other sources: we are postponing and postponing right and right the construction and appearance of this regional aircraft, which we need so much," the president said.

    According to the investment project approved in February 2023 for the supply of new aircraft for the unified Far Eastern airline Aurora, the carrier was to receive, among other things, ten Baikals: the first five in 2025 and another five in 2026. The investment project also envisaged the supply of Superjet New and Mi-171A2/171A3 helicopters. The total amount of capital investment was estimated at 55.1 billion rubles. In addition, within the framework of the EEF, GTLK and Aurora agreed on the preliminary supply of 95 Baikals in 2026–2030.

    In May of this year, the delivery dates for regional aircraft for airlines were already adjusted : the first deliveries of LMS-901 were postponed from 2024 to 2025, and the total volume of the state delivery program until 2030 was reduced to 139 aircraft, according to the updated comprehensive program for the development of the aviation industry.

    A representative of Industry Minister Anton Alikhanov declined to comment. The request was sent to the press service of the Ural Civil Aviation Plant (the manufacturer of the Baikal).

    https://www.rbc.ru/business/05/09/2024/66d93b309a7947aed2d86b6b

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    GarryB
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    Post  GarryB Thu Sep 05, 2024 6:42 pm

    That video is interesting... the R79 engine used in the Yak-141 was compromised and China is using its technology to make engines.

    The R-579 is a 21 ton thrust engine and they are talking about using it for commercial aircraft (Tu214) which would give it a flight range of 13,000km, and also as a potential engine for the Su-75... an 18 ton MTOW aircraft with a 21 ton thrust engine... its performance would be rather eye watering.

    And further developments of the engine to 23 tons thrust and for new strategic drones up to mach 4... so maybe such engines could be used on the MiG-41?

    Mention of adaptations to civilian airliner engines using the R579 core up to 45 tons thrust.

    Seems like they are getting more engine options... this is a very good thing.

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    GarryB
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    Post  GarryB Thu Sep 05, 2024 6:49 pm

    Regarding the delays in the Baikal, they should be careful... a factory that made aircraft designed and built the Ansat helicopter on their own... imagine if some factory that makes light aircraft did the same to create a suitable cheap An-2 replacement?
    lancelot
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    Post  lancelot Thu Sep 05, 2024 9:10 pm

    It would have the same issue as the Baikal. There are no appropriate Russian engines of that power level.
    Rodion_Romanovic
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    Post  Rodion_Romanovic Thu Sep 05, 2024 11:16 pm

    GarryB wrote:Regarding the delays in the Baikal, they should be careful... a factory that made aircraft designed and built the Ansat helicopter on their own... imagine if some factory that makes light aircraft did the same to create a suitable cheap An-2 replacement?

    They have it already, as I wrote in an earlier post.

    It is the SibNIA TVS-2MS (turboprop conversion of the An-2, first flown in 2011).
    At least 16 are already in service. It is a metal plane, so no issues or complications with composite (the same institute also made the composite versions, but I believe they were mainly as a study).

    The only issue with this plane is the foreign engine (the Honeywell TPE331-12UHR (1100 hp).

    In theory the turboshaft engine of the Ka-62 (VK-1600V) could be converted into a turboprop and derated from 1400 hp to 1200hp or similar.
    Apparently in Russia a separate group is also going to do a reverse engineered version of the old Honeywell engine.

    Eventually Russia will have both the modernised An-2 (up to 12 passengers and the Baikal (up to 9 passengers)

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    Rodion_Romanovic
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    Post  Rodion_Romanovic Thu Sep 05, 2024 11:35 pm

    GarryB wrote:That video is interesting... the R79 engine used in the Yak-141 was compromised and China is using its technology to make engines.

    The R-579 is a 21 ton thrust engine and they are talking about using it for commercial aircraft (Tu214) which would give it a flight range of 13,000km, and also as a potential engine for the Su-75... an 18 ton MTOW aircraft with a 21 ton thrust engine... its performance would be rather eye watering.

    And further developments of the engine to 23 tons thrust and for new strategic drones up to mach 4... so maybe such engines could be used on the MiG-41?

    Mention of adaptations to civilian airliner engines using the R579 core up to 45 tons thrust.

    Seems like they are getting more engine options... this is a very good thing.


    Here there are also some info (article from 2021) on that engine.

    https://en.topwar.ru/184990-sovetskoe-nasledstvo-turboreaktivnyj-dvigatel-pjatogo-pokolenija-na-baze-izdelija-79.html

    Is Soyuz still involved with its development?
    Furthermore it will be used first for military applications
    Deriving from it a civilian turbofan will be probably not easier than developing the PD-18R based on the PD-14.

    lancelot
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    Post  lancelot Fri Sep 06, 2024 12:22 am

    Rodion_Romanovic wrote:the SibNIA TVS-2MS (turboprop conversion of the An-2, first flown in 2011).
    At least 16 are already in service. It is a metal plane, so no issues or complications with composite (the same institute also made the composite versions, but I believe they were mainly as a study).

    The only issue with this plane is the foreign engine (the Honeywell TPE331-12UHR (1100 hp).
    This video talks about how they are working on cloning the Honeywell engine at Samara.



    See the video segment starting at 30:06.
    GarryB
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    Post  GarryB Fri Sep 06, 2024 3:29 pm

    It would have the same issue as the Baikal. There are no appropriate Russian engines of that power level.

    Except now they do... the VK-1600V will be a 1,400hp engine that will be ready in a couple of years which gives them a couple of years to develop and aircraft shell to put it into.

    Equally two small engines could be used in a twin engined version that would allow 19 passengers instead of the current limit of 9 for a single engined type.

    More importantly the VK-1600V and the VK-650 are going to be widely used in light helicopters, so while they wont be in wide scale use to start out with they soon will be, which will have economic and supply benefits moving forward.

    They have it already, as I wrote in an earlier post.

    It is the SibNIA TVS-2MS (turboprop conversion of the An-2, first flown in 2011).
    At least 16 are already in service. It is a metal plane, so no issues or complications with composite (the same institute also made the composite versions, but I believe they were mainly as a study).

    I thought the price was ballooning and becoming no longer viable...

    Plus I meant my example... the Ansat essentially replaced the Mi-2 and is a different design, not a copy.

    The TVS-2MS is just a Russian produced An-2.

    Deriving from it a civilian turbofan will be probably not easier than developing the PD-18R based on the PD-14.

    The makers of PD series engines are already spoken for, these engines can be produced in addition and fill gaps faster... with a modern useful engine.

    The PS90 engine family were useful but seem to be a dead end and the PD family was supposed to replace them with better performance and potential future growth.... and I would guess this new engine offer even more potential as a turbojet core for a high bypass turbofan design.

    This video talks about how they are working on cloning the Honeywell engine at Samara.

    A turboprop based on the VK-1600V would make more sense IMHO. It is Russian.

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    PhSt
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    Post  PhSt Fri Sep 06, 2024 4:33 pm


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