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The Soloviev D-25V is a Soviet gas-turbine
turboshaft A turboshaft engine is a form of gas turbine that is optimized to produce shaftpower rather than jet thrust. In concept, turboshaft engines are very similar to turbojets, with additional turbine expansion to extract heat energy from the exhaust ...
engine for use in large helicopters. Designed and originally manufactured by the
Soloviev Design Bureau UEC-Aviadvigatel JSC (Russian: АО "ОДК-Авиадвигатель", lit. Aeroengine) is a Russian developer and builder of aircraft engines, most notably jet engines for commercial aircraft. Based at the Perm Engine Plant, its products powe ...
the engine has been in production since May 1960. The power unit consists of two engines coupled to a gearbox weighing 3,200 kg (7,050 lb). The ''V'' in the designation means ''vertoletny'' (russian: Вертолетный), for helicopters.


Variants

;D-25V:Standard helicopter use production engines ;D-25VF:Additional compressor zero-stage, power output ;D-25VK:A combined propeller and shaft output engine for the
Kamov Ka-22 The Kamov Ka-22 ''Vintokryl'' (rotor-wing, or literally, (air)screw-wing) ( Cyrillic:Камов Ка-22 Винтокрыл) ( NATO reporting name: Hoop) was a rotorcraft developed by Kamov for the Soviet Air Force. The experimental transport air ...
developing


Applications

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Mi-6 The Secret Intelligence Service (SIS), commonly known as MI6 ( Military Intelligence, Section 6), is the foreign intelligence service of the United Kingdom, tasked mainly with the covert overseas collection and analysis of human intelligen ...
helicopter * Mi-10 helicopter * Mi-10K "flying crane" helicopter * Mi-12 helicopter *
Kamov Ka-22 The Kamov Ka-22 ''Vintokryl'' (rotor-wing, or literally, (air)screw-wing) ( Cyrillic:Камов Ка-22 Винтокрыл) ( NATO reporting name: Hoop) was a rotorcraft developed by Kamov for the Soviet Air Force. The experimental transport air ...
compound helicopter *
Yakovlev Yak-60 Yakovlev Yak-60 (known as Yak-32 in some sources) is the possible designation for an experimental Yakovlev tandem-rotor heavy-lift helicopter design of the late 1960s. This design never progressed beyond the model stage. Development This helicop ...
heavy lift helicopter (concept cancelled during design stage)


Specifications (D-25V)


See also


References


Further reading

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External links


D-25V description and photos at the manufacturer's site
{{Soloviev aeroengines D-25 1950s turboshaft engines