Turbofan Engine Family for Regional Jet
Advanced turbofan for regional jet is a bypass two-shaft turbojet without fan and core flows mixing and with a thrust reverser and effective acoustic treatment. The aero-engine is designed for a new short- and mid-range regional jet MS‑21.
Advanced turbofan is designed on the basis of a new high-efficient gas generator configured as "8+2" with parameters that are inherent to machines of generation 5+. The gas generator tests and its refinement were started in November 2010.
Engine models
Advanced Turbofan Engine Family for Regional Jet consists of PD-14, PD-14A, PD-14M engine models;
PD-14 is a basic turbofan for MS-21-300 Regional Jet;
PD-14A is a throttled model of turbofan for MS-21-200 Regional Jet;
PD-14M is a boosted model of turbofan for MS-21-400 Regional Jet.
Engines Primary Performance Data | PD-14A | PD-14 | PD-14M |
| Take-Off thrust (Í = 0; Ì = 0), ton-force | 12.5 | 14,0 | 15.6 |
| Bypass ratio at Take-Off | 8.6 | 8.5 | 7.2 |
| Compressor pressure ratio at Climb | 38 | 41 | 46 |
| Specific fuel consumption at Cruise, kg/kgf·hr | (10...15) % lower than the level of modern engines of similar thrust and function | ||
| Fan diameter, mm | 1900 | 1900 | 1900 |
| Engine dry weight, kg | 2770 | 2770 | 2850 |
Environmental ratings
- Emission parameters are at the level of the best world machines of similar design and have good presuppositions for future. Level of NOx emissions is 20...30% lower than that required in ICAO 2008.
- Noise parameters meet the aircraft noise requirements of ICAO Stage 4 and have 15ÅPNdB margin relative thereto.
