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R-29
Tumansky R-29-300 on display at the Deutsches Museum Flugwerft Schleissheim

The Tumansky R-29 is a Soviet aircraft turbojet engine that was developed in the early 1970s.[1] 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.[2]

Variants[]

R-29-300 Original variant. Used in the MiG-23MF and related variants.[3]

R-29B-200 Simplified variant of the engine intended for the MiG-27.[3]

R-29PN Advanced variant that replaced the -300 model on non-export aircraft.[3]

R-29BS-300 Variant with modified gearbox. Used in several export variants of the Sukhoi Su-17.[3]

Applications[]

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: Five-stage low pressure, six-stage high pressure (axial)
  • Combustors: Annular
  • Turbine: Two-stage high pressure, single-stage low pressure
Performance
  • Maximum power output: 12,480 kg (27,510 lb) with afterburner (9,900 kg (21,800 lb) dry thrust)
  • Overall pressure ratio: 12.9:1
  • Air mass flow: 105 kg/s
  • Power-to-weight ratio:


See also[]

References[]

Notes[]

  1. Gunston 1989, p. 168.
  2. Sosounov, V.A. (1990). The Development of Aircraft Power Plant Construction in the USSR and the 60th Anniversary of CIAM. AlAA/ASME/SAE/ASEE 26th Joint Propulsion Conference, July 16–18, 1990. Orlando, Florida. AIAA-90-2761.
  3. 3.0 3.1 3.2 3.3 TMKB Soyuz R29-300 (subscription required). Janes Aero Engines. Edited: 1 April 2010. Retrieved: 8 September 2010.

Bibliography[]

  • Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
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