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Kuznetsov NK-25

From Wikipedia, the free encyclopedia
NK-25
Type Turbofan
National origin Soviet Union
Manufacturer Kuznetsov Design Bureau
Major applications Tupolev Tu-22M

The Kuznetsov NK-25 is a turbofan aircraft engine made by the Soviet Kuznetsov Design Bureau and used in the Tupolev Tu-22M strategic bomber. One of the most powerful supersonic engines in service today, it is rated at 245 kN (55,000 lbf) thrust. The three shaft engine was designed in the years 1972–1974.

Applications

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Specifications (NK-25)

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Data from motor-s.ru,[2] Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK[1] and engine.aviaport.ru[3]

General characteristics

  • Type: Three-spool low-bypass afterburning turbofan
  • Length: 7,300 mm (290 in)[2]
  • Diameter: 1,770 mm (70 in)[2] at the nozzle casing
  • Dry weight: 3,575 kg (7,882 lb)[2]

Components

  • Compressor: 3-stage LP, 5-stage IP and 7-stage HP[3]
  • Combustors: Annular multi-nozzle combustion chamber[2]
  • Turbine: 4-stage axial turbine[2]

Performance

See also

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Comparable engines

Related lists

References

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  1. ^ a b c d e Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK (in Russian). Samara, Russia: SNTK imeni N.D.Kuznetsova. pp. 42, 43, 77.
  2. ^ a b c d e f g h i j "NK-25". motor-s.ru. Archived from the original on 2002-04-08. Retrieved 14 October 2021.
  3. ^ a b c d "Tot samyy "NK"". engine.aviaport.ru (in Russian). Nikolay Aleksandrov. Retrieved 4 October 2021.
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  • NK-25 on LeteckeMotory.cz (Czech)