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From Wikipedia, the free encyclopedia

R-29
Tumansky R-29-300 turbojet MiG-23BN LSideFront DMFO 10June2013 (14563790706).jpg
Tumansky R-29-300 on display at the Deutsches Museum Flugwerft Schleissheim
Type Turbojet
Manufacturer Tumansky, UMPO, MMP Chernyshev, AMNTK Sojuz
First run 1972
Major applications MiG-23
Developed from Tumansky R-27
Developed into Tumansky R-35

The Tumansky R-29 is a Soviet turbojet aircraft 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-300

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]

Khatchaturov R-35-300
Developed version used in late variants of the MiG-23

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: 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 kilonewtons (17,640 lbf) full military (dry)
  • 112.81 kilonewtons (25,360 lbf) with boosted afterburner (CSR mode, altitude < 4,000 metres (13,000 ft))
  • 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
  • Thrust-to-weight ratio: 4.55; 6.54 with afterburner.

See also

Comparable engines

Related lists

References

Citations

  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. ^ a b c d TMKB Soyuz R29-300 (subscription required)[permanent dead link]. Janes Aero Engines. Edited: 1 April 2010. Retrieved: 8 September 2010.

Sources

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

External links

This page was last edited on 17 April 2021, at 04:12
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