|Manufacturer||Soloviev Design Bureau|
|Major applications||Mil Mi-6.|
The Soloviev D-25V is a Soviet gas-turbine turboshaft engine for use in large helicopters. Designed and originally manufactured by the Soloviev Design Bureau 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.
- Standard helicopter use production engines
- Additional compressor zero-stage, power output 6,500 hp (4,847 kW)
- A combined propeller and shaft output engine for the Kamov Ka-22 developing 5,500 hp (4,101 kW)
- Mi-6 helicopter
- Mi-10 helicopter
- Mi-10K "flying crane" helicopter
- Mi-12 helicopter
- Kamov Ka-22 compound helicopter
- Yakovlev Yak-60 heavy lift helicopter (concept cancelled during design stage)
- Type: Free-turbine single-shaft turboshaft engine
- Length: 273.7 cm (107.75 in)
- Diameter: 108.6 cm (42.8 in) (width) 115.8 cm (45.6 in) (height)
- Dry weight: 1,325 kg (2,921 lb)
- Compressor: Nine-stage axial flow
- Combustors: 12-chamber cannular
- Turbine: Single-stage compressor turbine, two-stage power turbine
- Fuel type: Avtur
- Maximum power output: 5,500 hp (4,102 kW)
- Specific fuel consumption: 0.639 lb/shp/hr
- Power-to-weight ratio:
- Gunston 1989, p. 164.
- Taylor 1972, p. 752.