Engineering:Kuznetsov NK-22

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Short description: 1960s Soviet/Russian turbofan aircraft engine
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. 1.0 1.1 1.2 (in ru) Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK. Samara, Russia: SNTK imeni N.D.Kuznetsova. pp. 33, 34, 75. 
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 Kussior, Zdeněk. "NK-22, NK-23" (in cs). http://www.leteckemotory.cz/motory/nk-22/. 
  3. 3.0 3.1 "Tot samyy "NK"" (in ru). Nikolay Aleksandrov. http://engine.aviaport.ru/issues/08/page39.html. 
  4. 4.0 4.1 4.2 4.3 4.4 "NK-22" (in ru). http://www.airwar.ru/enc/engines/nk22.html.