Klimov TV2-117

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Isotow TV-2-117A.jpg
Type Turboshaft
Manufacturer Klimov
First run 1962
Major applications Mil Mi-8.
Number built 23,000
Developed into Klimov TV3-117

The Klimov TV2-117 (initially Isotov TV2-117) is a Soviet gas-turbine turboshaft engine intended for helicopter use. Designed in the early 1960s by the Isotov Design Bureau the engine became the first purpose built gas turbine engine for helicopter use by the Soviet Union with previous helicopter turbines being adapted aeroplane powerplants. It was later produced by Klimov, production ending in 1997.[1]

The TV2-117 is claimed to be the most popular helicopter powerplant worldwide and has accumulated over 100 million hours in service. [1]



Base variant.
Improved engine with more durable compressor stator blades.
Carbon sealed shaft bearings
Limited production of engine certified to FAA airworthiness standards for Japan.
Multi-fuel variant, adapted to run on liquid petroleum gas and other fuels, such as gasoline an diesel fuel, and for use in cold climates.


Specifications (TV2-117)

Data from Gunston.[2]

General characteristics

  • Type: Turboshaft
  • Length: 2,835 mm (9.301 ft)
  • Diameter:
  • Dry weight: 330 kg (728 lb) (minus accessories)


  • Compressor: Ten-stage axial flow
  • Combustors: Eight-chamber cannular
  • Turbine: Two-stage compressor turbine, two-stage power turbine


See also

Comparable engines

Related lists


  1. ^ a b c Klimov TV2-117 product page Archived 2013-03-07 at the Wayback Machine Retrieved: 24 May 2012
  2. ^ Gunston 1989, p. 81.
  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
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