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 used in the Tupolev Tu-22M strategic bomber. It can equal the NK-321 engine as one of the most powerful supersonic engines in service today. It is rated at 245 kN (55,000 lbf) thrust. The three shaft engine we call the NK-25 was designed in the years 1972–1974. It is made by the Soviet Kuznetsov Design Bureau.

Applications

Specifications (NK-25)

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

Comparable engines

Related lists

References

  1. 1 2 3 4 5 Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK (in Russian). Samara, Russia: SNTK imeni N.D.Kuznetsova. pp. 42, 43, 77.
  2. 1 2 3 4 5 6 7 8 9 10 "NK-25". motor-s.ru. Archived from the original on 2002-04-08. Retrieved 14 October 2021.
  3. 1 2 3 4 "Tot samyy "NK"". engine.aviaport.ru (in Russian). Nikolay Aleksandrov. Retrieved 4 October 2021.
  • NK-25 on LeteckeMotory.cz (Czech)
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