TV2-117

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]

Variants

Source:Klimov.^[1]

TV2-117: Base variant.

TV2-117A: Improved engine with more durable compressor stator blades.

TV2-117AG: Carbon sealed shaft bearings

TV2-117F: Limited production of engine certified to FAA airworthiness standards for Japan.

TV2-117TG: Multi-fuel variant, adapted to run on liquid petroleum gas and other fuels (gasoline or diesel fuel) and for use in cold climates.

Applications

Antonov An-24 (intended coupled turboprop application)
Mil Mi-8
Mil Mi-14

Specifications (TV2-117A)

Data from World Encyclopaedia of Aero Engines,^[2] World Encyclopaedia of Aero Engines,^[3] Aircraft engines of the World 1970^[4]

General characteristics

Type: Turboshaft
Length: 2,390 mm (94 in)
Diameter: 400 mm (16 in)
Frontal area: 0.12 m² (1.3 sq ft)
Dry weight: 330 kg (730 lb) (minus accessories)

Components

Compressor: Ten-stage axial flow
Combustors: Eight-chamber cannular
Turbine: Two-stage compressor turbine, two-stage power turbine
Fuel type: Aviation Kerosene such as JP-4
Oil system: Pressure spray at 50 psi (3.4 bar) with return

Performance

Maximum power output:

Take-off power: 1,500 shp (1,100 kW) at 12,000 rpm (power turbine) de-rated
Altitude power: 1,300 kW (1,800 hp) at 12,000 rpm (power turbine) at 1,200 m (3,900 ft)

Overall pressure ratio: 6.6:1 at 21,200 rpm
Air mass flow: 8.1 kg/s (1,070 lb/min)
Turbine inlet temperature: TIT 1,150 K (880 °C)
Specific fuel consumption: 0.606 lb/(hp⋅h) (0.369 kg/kWh)
Power-to-weight ratio: 2.06 hp/lb (3.39 kW/kg)

References

Wikimedia Commons has media related to Isotov TV2-117.

^ ^a ^b ^c Klimov TV2-117 product page Archived 2013-03-07 at the Wayback Machine Retrieved: 24 May 2012
^ Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2nd ed.). Cambridge, England: Patrick Stephens Limited. p. 81. ISBN 978-1-85260-163-8.
^ Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2nd ed.). Cambridge, England: Patrick Stephens Limited. p. 81. ISBN 978-1-85260-163-8.
^ Wilkinson, Paul H. (1970). Aircraft engines of the World 1970 (21st ed.). Washington D.C.: Paul H. Wilkinson. p. 214.

v t e Klimov aircraft engines
Piston engines	M-100 M-103 M-105 M-110 M-120 VK-106 VK-107 VK-108 VK-109 VK-110 VK-150
Turbojets	RD-45 VK-3 RD-500
Turbofans	RD-33
Turboprops and turboshafts	GTD-350 TV2-117 TV3-117 TV7-117 VK-800 VK-1500 VK-2500 VK-3000