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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]

R-29
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

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.

Shenyang WP-15

Chinese reverse-engineered copy of the R-29-300.[4]

Applications

• IAR 95 (Intended application)
• Mikoyan-Gurevich MiG-23
• Mikoyan MiG-27
• Chengdu J-10 (Prototype)
• Shenyang J-13 (Intended application)
• Sukhoi Su-22

Specifications (R-29-300)

Data from [5]

General characteristics

• Type: Turbojet
• Length: 4,953 mm (195.0 in)
• Diameter: 912 mm (35.9 in)
• Dry weight: 1,880 kg (4,140 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 lb_f) full military (dry)
• 112.81 kilonewtons (25,360 lb_f) 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: =
  
  • 96,8 kg/(h·kN) (0.95 lb/(h·lbf)) at maximum military power
  • 202,76 kg/(h·kN) (2 lb/(h·lbf)) with afterburner
• Thrust-to-weight ratio: 4.446; 6.119 with afterburner.

See also

Comparable engines

• Lyulka AL-21

Related lists

• List of aircraft engines

References

Citations

Sources

External links

• R-29 on leteckemotory.cz (in Czech and Slovak)

На других языках

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- [en] Tumansky R-29

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[fr] Toumanski R-29

Le Toumanski R-29 (en russe : « Туманский Р-29 ») est un turboréacteur à simple flux d'origine soviétique conçu au début des années 1970[1]. Il est habituellement décrit comme appartenant à la « 3e génération » de turbomoteurs soviétiques, caractérisée par des rapports poussée/poids élevés et des ailettes de turbine dotées d'un système de refroidissement par air[2].

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[ru] Р-29-300

Р-29-300 — турбореактивный двигатель с форсажной камерой, созданный на базе турбореактивного двигателя Р-27Ф-300. Двигатель и его модификации разрабатывались для установки на истребителях семейства МиГ-23 (в том числе на серии самолетов МиГ-27) и на семейства Су-17/Су-22.

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