Kuznetsov NK-32
The Kuznetsov NK-32 is an afterburning three-spool low bypass turbofan jet engine which powers the Tupolev Tu-160 supersonic bomber, and was fitted to the later model Tupolev Tu-144LL supersonic transport. It is the largest and most powerful engine ever fitted on a combat aircraft. It produces 245 kN (55,000 lbf) of thrust in afterburner.
| NK-32 | |
|---|---|
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| Type | Turbofan |
| National origin | Soviet Union/Russia |
| Manufacturer | Kuznetsov Design Bureau |
| Major applications | Tupolev Tu-160 |
A non-afterburning variant known as NK-32 Tier 2 for Tu-160 and NK-65 will be used in the upcoming Russian bomber, PAK DA.[1]
NK-65 and a geared high-bypass turbofan variant PD-30, with a thrust of 30 tonnes (around 300 kN) has been proposed for use on new Russian wide-body airliners, as well as the upgraded Antonov An-124 Ruslan heavylifter.[2] [3]
Applications
- Tupolev Tu-160
- Tupolev Tu-144LL
- Tupolev Tu-22M3M[4]
- Yakovlev Yak-43
- PAK DA
Specifications
General characteristics
- Type: Three-spool low-bypass afterburning turbofan
- Length: 6,000 mm (20 ft)[5]
- Diameter: 1,460 mm (4.79 ft)[5]
- Dry weight: 3,400 kg (7,500 lb)[5]
Components
- Compressor: 3-stage LP (fan), 5-stage IP, 7-stage HP
- Combustors: annular
- Turbine: 1-stage HP, 1-stage IP, 2-stage LP
Performance
- Maximum thrust: Cruise thrust: 14 000 kgf (31,000 lbf, 137 kN)[6] Afterburning thrust: 25 000 kgf (55,000 lbf, 245 kN)[6]
- Overall pressure ratio: 28.4[5]
- Bypass ratio: 1.4[5]
- Turbine inlet temperature: 1630 K (1357 °C)
- Specific fuel consumption: (supersonic) 1.70 kg/kgf/hour[7](subsonic): 0.72-0.73 kg/kgf/hour[7]
- Thrust-to-weight ratio: 7.35
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References
- "An engine for PAK DA bomber will be derived from the engine, which powers Tu-160 - News - Russian Aviation - RUAVIATION.COM". www.ruaviation.com. Retrieved 13 January 2019.
- "PD-30: future Russian thirty-tonner". Take-off magazine. Archived from the original on 8 March 2016. Retrieved 7 March 2016.
- "Take-off Magazine : PD-30: future Russian thirty-tonner". fantasylab.ru. Retrieved 13 January 2019.
- Axe, David. "Meet Russia's Tu-22M3M Backfire Bomber: Everything We Know So Far". The National Interest. Retrieved 16 March 2020.
- "Civil Turbojet/Turbofan Specifications". www.jet-engine.net. Retrieved 13 January 2019.
- "Military Turbojet/Turbofan Specifications". www.jet-engine.net. Retrieved 13 January 2019.
- "Самолёт Ту-160". www.airforce.ru. Retrieved 13 January 2019.
External links
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Wikimedia Commons has media related to Kuznetsov NK-32. |
- NK-32 on LeteckeMotory.cz (Czech)
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