NK-22
Type Turbofan
National origin Soviet Union
Manufacturer Kuznetsov Design Bureau
First run April 1968[1]
Major applications Tupolev Tu-22M[2]
Developed from NK-144
Developed into NK-23

The Kuznetsov NK-22 is an afterburning turbofan engine, designed by the Kuznetsov Design Bureau.

Development

In April 1967, the Kuznetsov Design Bureau accepted an official request to create a new engine that would later be designated as the NK-22.[2] The design of the NK-22 was based on the NK-144 engine used on the Tupolev Tu-144 SST.[2]

The first specimen of the engine was completed on April 10, 1968[2] and the first factory tests where passed in the same month.[2] State tests took place in October 1970.[2] The engines where later installed on Tu-22M0, M1 and M2 bombers.[2] Serial production of the NK-22 started in 1969 and was terminated in 1984.[1]

A modernised version of the NK-22, the NK-23, first ran in July 1976[1] and was tested in flight on a Tupolev Tu-22M2 bomber.[2] Despite having more thrust (220 kN)[3] than its predecessor, the NK-23 was not put into serial production.[3]

Applications

Specifications (NK-22)

Data from airwar.ru[4] and leteckemotory.cz[2]

General characteristics

  • Type: Two-spool low-bypass afterburning turbofan
  • Length: 5,200 mm (200 in)[4]
  • Diameter: 1,500 mm (59 in)[4]
  • Dry weight:

Components

  • Compressor: 12-stage axial compressor
  • Combustors: Annular multi-nozzle combustion chamber
  • Turbine: 3-stage turbine
  • Fuel type: T-7 or RT kerosene type fuel

Performance

See also

Comparable engines

Related lists

References

  1. 1 2 3 Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK (in Russian). Samara, Russia: SNTK imeni N.D.Kuznetsova. pp. 33, 34, 75.
  2. 1 2 3 4 5 6 7 8 9 10 11 12 13 Kussior, Zdeněk. "NK-22, NK-23". leteckemotory.cz (in Czech). Retrieved 6 October 2021.
  3. 1 2 "Tot samyy "NK"". engine.aviaport.ru (in Russian). Nikolay Aleksandrov. Retrieved 4 October 2021.
  4. 1 2 3 4 5 "NK-22". airwar.ru (in Russian). Retrieved 5 October 2021.
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