Soloviev D-25

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D-25V
Д-25В.jpg
Type Turboshaft
Manufacturer Soloviev Design Bureau
First run 1954
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.

Variants[edit]

D-25V
Standard helicopter use production engines
D-25VF
Additional compressor zero-stage, power output 6,500 hp (4,847 kW)
D-25VK
A combined propeller and shaft output engine for the Kamov Ka-22 developing 5,500 hp (4,101 kW)

Applications[edit]

Specifications (D-25V)[edit]

Data from Gunston and Jane's.[1][2]

General characteristics

  • 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)

Components

  • Compressor: Nine-stage axial flow
  • Combustors: 12-chamber cannular
  • Turbine: Single-stage compressor turbine, two-stage power turbine
  • Fuel type: Avtur

Performance

See also[edit]

Comparable engines

Related lists

References[edit]

Notes[edit]

  1. ^ Gunston 1989, p. 164.
  2. ^ Taylor 1972, p. 752.

Bibliography[edit]

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
  • Taylor, John W.R. Jane's All the World's Aircraft 1972-73., London, Sampson Low, Marston and Company Ltd, 1972. ISBN 978-0354001090.

External links[edit]