Kuznetsov NK-4

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NK-4
Type Turboprop
National origin Soviet Union
Manufacturer Kuznetsov Design Bureau
First run April 1956[1]
Major applications Ilyushin Il-18

The Kuznetsov NK-4 is a turboprop engine, designed by the Kuznetsov Design Bureau.

Development

Development of the NK-4 began on September 27, 1955[1] at the Kuznetsov Design Bureau. Factory tests were passed on April 17, 1956[1] and state tests were passed in 1957.[1] At the time, the NK-4 was considered an economical and technologically advanced engine.[1]

A modified version of the NK-4 that improved in terms of service life and efficiency,[1] the NK-4A, passed factory tests in October 1957.[1] State tests of the NK-4A were passed in June 1959.[1]

Applications

Specifications (NK-4)

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

General characteristics

  • Type: Turboprop engine
  • Length: 2.77 m (9 ft 1 in)
  • Diameter:
  • Dry weight: 970 kg (2,140 lb)[1] without propeller

Components

  • Compressor:

Performance

  • Maximum power output:
    • 2,944 kW (3,948 hp)[1] at takeoff
    • 1,580 kW (2,120 hp)[1] in cruise
  • Overall pressure ratio: 7.9[1]
  • Turbine inlet temperature: 1,250 K (980 °C; 1,790 °F)[1]
  • Specific fuel consumption
    :
    • 0.333 kg/(kW⋅h)[1] at takeoff
    • 0.285 kg/(kW⋅h)[1] in cruise

See also

Comparable engines

Related lists

References

  1. ^ a b c d e f g h i j k l m n o p q Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK (in Russian). Samara, Russia: SNTK imeni N.D.Kuznetsova. pp. 21, 72.
  2. ISBN 1-85780-187-3
    .
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