Pratt & Whitney PW1000G
|National origin||United States|
|Manufacturer||Pratt & Whitney|
|Major applications||Airbus A320neo
Mitsubishi Regional Jet
Embraer E-Jets E2
The Pratt & Whitney PW1000G is a high-bypass geared turbofan engine family, currently selected as the exclusive engine for the Bombardier CSeries, Mitsubishi Regional Jet (MRJ), Embraer's second generation E-Jets, and as an option on the Irkut MS-21 and Airbus A320neo. The project was previously known as the Geared Turbofan (GTF), and originally the Advanced Technology Fan Integrator (ATFI).
Pratt & Whitney first attempted to build a geared turbofan starting around 1998, known as the PW8000. This essentially was an upgrade of the existing Pratt & Whitney PW6000 that replaced the fan section with a gearing system and new single-stage fan. After several years of development the PW8000 essentially disappeared. Soon afterwards the ATFI project appeared, using a PW308 core but with a new gearbox and a single-stage fan. It had its first run on March 17, 2001.
This led to the Geared Turbofan (GTF) programme, which was based around a newly designed core jointly developed with MTU Aero Engines of Germany. The German company provides the high-speed low-pressure turbine and various stages of the high-pressure compressor.
In addition to the geared turbofan, the initial designs included a variable-area fan nozzle (VAFN), which allows improvements in propulsive efficiency across a range of the flight envelope. However, the VAFN has since been dropped from production designs due to high system weight.
In July 2008, the GTF was renamed the PW1000G, the first in a new line of "PurePower" engines. 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 engine was tested on the Pratt & Whitney Boeing 747SP, and 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. The PW1100G was first tested on the 747SP in 2013 .
Testing of the PW1524G model began in October 2010.
The PW1500G engine successfully achieved Transport Canada type certification on February 20, 2013.
Final versions are expected to be in production in 2013.
Data from MTU
- Type: Turbofan
- Diameter: 1,422–2,057 millimetres (56.0–81.0 in)
- Dry weight:
- Compressor: Axial flow,1-stage geared fan, 2-3 stage LP, 8 stage HP
- Combustors: Annular combustion chamber
- Turbine: Axial, 2-stage HP, 3-stage LP
|Model||Fan Diameter||Bypass ratio||Static Thrust||Fuel cons.||Noise (St.4)||CO2 (t/ac/yr)||NO (margin to CAEP 6)||Stages||Application||Service entry|
|81 in (2.06 m)||12:1||24,000–35,000 lbf (110–160 kN)||-15%||-20 dB||-3.600||-55%||1GF-3LPC-8HPC-2HPT-3LPT||A320neo||October 2015|
|56 in (1.42 m)||9:1||15,000–17,000 lbf (67–76 kN)||−12%||−15 dB||-2,700||−50%||1GF-2LPC-8HPC-2HPT-3LPT||Mitsubishi Regional Jet||2017|
|81 in (2.06 m)||12:1||28,000–31,000 lbf (120–140 kN)||-15%||-20 dB||-3.600||-55%||1GF-3LPC-8HPC-2HPT-3LPT||Irkut MS-21||2016|
|73 in (1.85 m)||12:1||19,000–24,000 lbf (85–107 kN)||−14%||−20 dB||-3,000||−55%||1GF-3LPC-8HPC-2HPT-3LPT||CSeries||2015|
|PW1700G||56 in (1.42 m)||9:1||15,000 lbf (67 kN)||-12%||-15 dB||-2.700||−50%||1GF-2LPC-8HPC-2HPT-3LPT||E-Jets E2||2018|
|PW1900G||73 in (1.85 m)||12:1||19,000–22,000 lbf (85–98 kN)||-15%||-20 dB||-3.000||−55%||1GF-3LPC-8HPC-2HPT-3LPT||E-Jets E2||2018|
- Related development
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- Pratt & Whitney's surprise leap.
- Pratt & Whitney's next leap in engine technology
- The Short Life and Untimely Demise of the PW8000
- "P&W readies for CSeries "third knob" engine testing". Retrieved 2011-02-27.
- "P&W launches geared turbofan plane engine". The Gazette. 2008-07-14. Retrieved 2008-07-14.
- Garvey, William. Pratt Gears Up for PW1000G Aviation Week. Accessed: 9 January 2011.
- Airbus-owned A340 flies P&W geared turbofan engine
- "Pratt & Whitney geared PW1524G testing underway". Retrieved 2010-10-31.
- News - Media Centre. Bombardier. Retrieved on 2013-12-09.
- PurePower PW1000G Engine
- PurePower PW1700G & PW1900G Engines
- P&W seals deal to begin design on GTF for Russia's MS-21
- Airbus set to launch A320 NEO
- Airbus offers new fuel saving engine options for A320 rFamily
- Embraer Launches E-Jet RE: Assessing the Impact
- PW1000G - MTU Aero Engines. Mtu.de. Retrieved on 2013-12-09.
- PurePower Engine Family Specs Chart - Pratt & Whitney Retrieved 2014-02-22
- Pratt & Whitney Unveils Higher Thrust PurePower® Engine
- MRJ - Mitsubishi Regional Jet. Mrj-japan.com. Retrieved on 2013-12-09.
- Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.
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