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Tumansky R 29

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Tumansky R-29

The Tumansky R-29 is a Soviet aircraft turbojet engine that was developed in the early 1970s. It is generally described as being in the "third generation" of Soviet gas turbine engines which are characterized by high thrust-to-weight ratios and the use of turbine air cooling.

Contents

Variants

R-29-300 Original variant. Used in the MiG-23MF and related variants.

R-29B-200 Simplified variant of the engine intended for the MiG-27.

R-29PN Advanced variant that replaced the -300 model on non-export aircraft.

R-29BS-300 Variant with modified gearbox. Used in several export variants of the Sukhoi Su-17.

Applications

  • IAR 95 (Intended application)
  • Mikoyan-Gurevich MiG-23
  • Mikoyan MiG-27
  • Shenyang J-13
  • Sukhoi Su-22

    • Specifications

    Data from Gunston

    General characteristics

  • Type: Turbojet
  • Length: 4,991 mm (196.5 in)
  • Diameter: 968 mm (38.1 in)
  • Dry weight: 1,760 kg (3,880 lb)

    • Components

  • Compressor: Two-spool Five-stage low pressure, six-stage high pressure (axial)
  • Combustors: Annular
  • Turbine: Two-stage high pressure, single-stage low pressure

    • Performance

  • Maximum thrust:
  • 78,48 kN dry
  • 112,81 kN with afterburner
  • Overall pressure ratio: 12.9:1
  • Air mass flow: 105 kg/s
  • Turbine inlet temperature: 1,083 °C
  • Specific fuel consumption: =
  • 95,8 kg/(h·kN) (0.94 lb/(h·lbf)) at maximum military power
  • 183.5 kg/(h·kN) (1.81 lb/(h·lbf)) with afterburner
  • Power-to-weight ratio:

    • References

    Tumansky R-29 Wikipedia
    (Text) CC BY-SA