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PW1000G
Type Turbofan
Manufacturer Pratt & Whitney
Major applications Bombardier CSeries, Mitsubishi Regional Jet, Irkut MS-21

The Pratt & Whitney PW1000G is a high-bypass geared turbofan engine currently selected as the exclusive engine for both the Bombardier CSeries and Mitsubishi Regional Jet (MRJ) airliners. The project was previously known as the Geared Turbofan (GTF), and originally the Advanced Technology Fan Integrator (ATFI).

Contents

Design and development

Pratt & Whitney first attempted to build a geared turbofan starting around 1998, known as the PW8000.[1] This essentially was an upgrade of the existing Pratt & Whitney PW6000 that replaced the fan section with a gearing system and new two-stage fan. After several years of development the PW8000 essentially disappeared.[2] Soon after the ATFI project appeared, still using the PW6000 turbomachinery but with a new gearbox and a single-stage fan.

This led to the Geared Turbofan (GTF) programme, which was based around a newly designed core jointly developed with MTU Aero Engines of Germany.

In July 2008, the GTF was renamed the PW1000G, the first in a new line of "PurePower" engines.[3] Pratt & Whitney claims the PW1000G is 10% to 15% more fuel efficient than current engines used on regional jets and single-aisle jets, as well as being substantially quieter.

The second phase of flight testing for the PW1000G was conducted on an Airbus A340-600. The testbed aircraft, with the engine in the number two pylon position, flew for the first time in Toulouse on October 14, 2008.[4]

Applications

Specifications

PW1500G Bombardier will use the 17,000 lb-23,000 lb thrust class PW1500G to power its new CSeries mainline jet. Fan diameter: 73 inches. Thrust (lbs.) 14-17K 17-23K Fuel Burn (vs. current engine) -12% -12% Noise (vs. Stage 4) -15 dB -20 dB Emissions–CO2 Reduction per a/c- (tonnes annually) -2,700 -3,000 Emissions–NOx (margin to CAEP 6) -50% -55% Fan Diameter (inches) 56 73 Weight (vs current engine)

Stage Count 1-G-2-8-2-3 1-G-3-8-2-3 Application MRJ aircraft CSeries aircraft Entry into Service 2014 2013

PW1200G Mitsubishi will use the 14,000 lb-17,000 lb thrust class PW1200G for its MRJ. Fan diameter: 56 inches.

Data from MTU[5]

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General characteristics

  • Type: Turbofan
  • Length: mm
  • Diameter: 1422 to 1854 mm
  • Dry weight:

Components

  • Compressor: Axial flow, 2-3 stage LP, 8 stage HP
  • Combustors: Annular combustion chamber
  • Turbine: Axial, 2-stage HP, 3-stage LP

Performance

See also

Comparable engines

Related lists

References

  • Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.  

External links


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