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Kuznetsov NK 8

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Kuznetsov NK-8

The NK-8 was a low-bypass turbofan engine built by the Kuznetsov Design Bureau, in the 90 kN (20,000 lbf) thrust class. It powered production models of the Ilyushin Il-62 and the Tupolev Tu-154A and B models.

Contents

Variants

  • NK-8-4
  • NK-8-2
  • NK-8-2U

    • Applications

  • Ilyushin Il-62
  • Tupolev Tu-154

    • Specifications (NK-8-2)

    Data from Jane's.

    General characteristics

  • Type: Two-shaft turbofan
  • Length: 4,762 mm (187.48 in)
  • Diameter: 1,442 mm (56.8 in)
  • Dry weight: 2,100 kg (4,629 lb)

    • Components

  • Compressor: Two stage axial fan, two-stage IP, six-stage HP
  • Combustors: Annular (139 burners)
  • Turbine: Single-stage HP, two-stage LP
  • Fuel type: Avtur
  • Oil system: Pressure feed

    • Performance

  • Maximum thrust: 93.2 kN (20,950 lb st) at take-off
  • Overall pressure ratio: 10.8
  • Bypass ratio: 1
  • Turbine inlet temperature: 870° C (1,143° K)
  • Specific fuel consumption: 21.53 mg/Ns (0.76 lb/hr/lb st) at 11,000 m (36,000 ft) cruise power
  • Thrust-to-weight ratio: 4.53

    • References

    Kuznetsov NK-8 Wikipedia
    (Text) CC BY-SA