The Kuznetsov NK-6 was a low-bypass afterburning turbofan engine, designed by the Kuznetsov Design Bureau.

NK-6
Type Turbofan
National origin Soviet Union
Manufacturer Kuznetsov Design Bureau
First run May 1958[1]

Development

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Development of the NK-6 started in 1955 at the Kuznetsov Design Bureau.[2] It was the first afterburning by-pass engine made in the Soviet Union.[1] With a maximum thrust of 216 kN (49,000 lbf), it was the most powerful jet engine in the world in the early 1960s.[2] Despite this fact, development of the NK-6 was halted in July 1963.[2] The accumulated experience of the NK-6 project was subsequently used in the development of the NK-144.[2]

A modified version of this engine, the NK-7, was intended for the Soviet Navy[1] and had a takeoff thrust of 216 kN (49,000 lbf).

Applications

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Specifications (NK-6)

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Data from Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK[1]

General characteristics

  • Type: Two-spool low-bypass afterburning turbofan
  • Length: 4,810 mm (189 in)
  • Diameter: 1,750 mm (69 in)
  • Dry weight: 3,200 kg (7,100 lb)

Components

Performance

  • Maximum thrust:
    • 216 kN (49,000 lbf)[1] at takeoff
    • 196.2 kN (44,100 lbf)[1] in cruise with afterburner
    • 34.3 kN (7,700 lbf)[1] in cruise without afterburner
  • Overall pressure ratio: 13.4[1] at takeoff
  • Bypass ratio: 1.79[1]
  • Air mass flow: 343 kg/s (760 lb/s)[1]
  • Turbine inlet temperature: 1,400 K (1,130 °C; 2,060 °F)[1]
  • Specific fuel consumption:
    • 183.6 kg/(kN⋅h)[1] at takeoff
    • 200 kg/(kN⋅h)[1] in cruise with afterburner
    • 87.7 kg/(kN⋅h)[1] in cruise without afterburner

See also

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Comparable engines

Related lists

References

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  1. ^ a b c d e f g h i j k l m n o p q r s t Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK (in Russian). Samara, Russia: SNTK imeni N.D.Kuznetsova. pp. 23, 24, 73.
  2. ^ a b c d "Tot samyy "NK"". engine.aviaport.ru (in Russian). Nikolay Aleksandrov. Retrieved 4 October 2021.
  3. ^ a b "NK-6". airbase.ru. Retrieved 13 October 2021.
  4. ^ "Tupolev Andrei Nikolaevich". www.aviation.ru. Archived from the original on 2011-06-05. Retrieved 13 October 2021.