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58 posters

    Mi-8/17, Μi-38, Mi-26: News

    GarryB
    GarryB


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    Mi-8/17, Μi-38, Mi-26: News - Page 16 Empty Re: Mi-8/17, Μi-38, Mi-26: News

    Post  GarryB Thu Oct 21, 2021 11:58 am

    Pretty sure all their twin engined helicopters have this...

    They obviously can't continue flying at max weights but such engine failures don't happen very early in a mission so normally a bit of fuel has been burned off.

    Usually there is a period of time it can operate at the high power rating to compensate for the loss of one engine or loss of oil pressure etc etc.

    d_taddei2 likes this post

    George1
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    Mi-8/17, Μi-38, Mi-26: News - Page 16 Empty Re: Mi-8/17, Μi-38, Mi-26: News

    Post  George1 Thu Oct 28, 2021 11:21 pm

    PhSt
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    Mi-8/17, Μi-38, Mi-26: News - Page 16 Empty Re: Mi-8/17, Μi-38, Mi-26: News

    Post  PhSt Mon Nov 22, 2021 11:49 pm


    Russia to launch mass production of world’s heaviest transport helicopter in 2022

    MOSCOW, November 22. /TASS/. The permission for the mass production of the world’s heaviest Mi-26T2V military transport helicopter will be obtained by the yearend, CEO of the Russian Helicopters rotorcraft manufacturer (part of the state tech corporation Rostec) Andrei Boginsky told TASS on Monday.

    "We are now at the final stage of getting the O1 designation for the helicopter’s baseline configuration and there are a few flights remaining to wrap up the Mi-26T2V’s flight tests. We expect to perform these flights by the end of the year and get the O1 code. We have already delivered the first batches of the Mi-26T2V helicopter to the Russian troops," the chief executive said.

    The upgraded Mi-26T2V helicopter performed its debut flight in August 2018. Russian Deputy Defense Minister Alexei Krivoruchko said in March 2019 that the ministry would buy 10 of the helicopters.

    The Mi-26T2V is a heavy large-fuselage military transport helicopter with a lifting capacity of 20 tonnes. The rotorcraft is outfitted with an integrated NPK90-2V avionics suite that provides for its operation day and night to fly in an automatic control mode, reach a preset point and perform approach maneuvers. The defensive aids suite shields the Mi-26T2V from air defense missile systems. The upgraded helicopter has a crew of five.

    https://tass.com/defense/1364685

    d_taddei2 and lancelot like this post

    lancelot
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    Mi-8/17, Μi-38, Mi-26: News - Page 16 Empty Re: Mi-8/17, Μi-38, Mi-26: News

    Post  lancelot Tue Nov 23, 2021 3:34 am

    Eh, what about the engine? The Mi-26 uses an engine manufactured in Ukraine.
    I thought this was supposed to be an upgrade of existing airframes rather than new aircraft.
    There is the Russo-Chinese heavy helicopter program which will have a PD-12V engine derived from PD-14 engine core but that engine isn't available yet.
    PhSt
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    Mi-8/17, Μi-38, Mi-26: News - Page 16 Empty Re: Mi-8/17, Μi-38, Mi-26: News

    Post  PhSt Tue Nov 23, 2021 3:45 am

    lancelot wrote:Eh, what about the engine? The Mi-26 uses an engine manufactured in Ukraine.
    I thought this was supposed to be an upgrade of existing airframes rather than new aircraft.
    There is the Russo-Chinese heavy helicopter program which will have a PD-12V engine derived from PD-14 engine core but that engine isn't available yet.

    I am only able to find an article from 2016 that talks about the new engines that's being developed for the new Mi-26T



    New Engines For Russia’s Heavy-lift Helicopter

    Russian engine company Aviadvigatel is developing a turboshaft that can power the Mil Mi-26T, based on the PD-14 turbofan that is now being flown an Il-76 testbed. Current versions of the heavy-lift helicopter use twin D136 engines that were developed by Ivchenko Progress and are in production at Motor-Sich, both companies based in Zaporozhie, Ukraine.

    Russian Helicopters deputy general manager Andrei Shibitov told AIN that Russian government customers would prefer the re-engined version. A prototype is expected to fly in 2017, with production examples to follow in 2018 and 2019. At the recent HeliRussia exhibition in Moscow, deputy trade and industry minister Andrei Boginsky said that work on the new engine is proceeding quickly, with his ministry providing extra funding.

    The engine is designated PD-12V and can develop 14,500 shp. However, it will be flat-rated to 11,500 shp to match the Mi-26’s existing gearbox. This power can be maintained to the altitude of 2,000 meters or at ambient temperature of +40 degree Celsius at sea level, thus improving the helicopter’s hot-and-high performance. According to Aviadvigatel, the PD-12 is 100 kg heavier than the D-136, but burns 18 percent less fuel. The developer says that a full-scale mockup has already been made so that designers can do a test-fit on Mi-26 airframe. The PD-12 is also offered on the Sino-Russian Advanced Heavy Lift (AHL) rotorcraft now in development.

    Preliminary studies done by United Engine Corporation (of which Aviadvigatel is a member) revealed that the refurbishment would improve the Mi-26’s payload-range and reduce operational costs through higher technical parameters and “on-condition” maintenance. The baseline PD-12V will provide a basis for the development of a family of engines.

    Shibitov confirmed that Algeria remains the only customer for the Mi-26T2 version, having ordered 14. This means that an April 2016 order from the Russian defense ministry for two Mi-26s was for the older Mi-26T variant, adding to 17 such rotorcraft that the service accepted new from the Rostvertol plant in 2011-2014. China is expecting a fourth Mi-26T this year, to supplement three already operational

    https://www.ainonline.com/aviation-news/defense/2016-06-02/new-engines-russias-heavy-lift-helicopter

    Since 5 years have passed, I wonder what is the progress made on these new engines?

    GarryB likes this post

    George1
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    Mi-8/17, Μi-38, Mi-26: News - Page 16 Empty Re: Mi-8/17, Μi-38, Mi-26: News

    Post  George1 Yesterday at 12:55 pm

    The special forces received fire support helicopters. The first Mi-8AMTSh-VN entered the Russian army, a source in the military-industrial complex said.

    https://en.topwar.ru/189860-vertolety-ognevoj-podderzhki-mi-8amtsh-vn-povysjat-boevuju-jeffektivnost-podrazdelenij-specnaznachenija.html

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