Pratt & Whitney PW1000G

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PW1000G
ILA Berlin 2012 PD 140.JPG
Type Geared turbofan
National origin United States
Manufacturer Pratt & Whitney
First run 2008
Major applications Airbus A320neo
Bombardier CSeries
Embraer E-Jets E2
Irkut MC-21
Mitsubishi Regional Jet

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 MC-21 and Airbus A320neo. The project was previously known as the Geared Turbofan (GTF), and originally the Advanced Technology Fan Integrator (ATFI).

Development[edit]

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 single-stage fan.[2] After several years of development the PW8000 essentially disappeared.[3] 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.[4] 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.[5] 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.[6]

The engine was tested on the Pratt & Whitney Boeing 747SP,[6] 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.[7] The PW1100G was first tested on the 747SP in 2013 [1].

Testing of the PW1524G model began in October 2010.[8]

The PW1500G engine successfully achieved Transport Canada type certification on February 20, 2013.[9]

The PW1100G engine successfully achieved FAA type certification on December 19, 2014.[10]

The first flight test on one of its intended production airframes, the Airbus A320neo, was on 25 September 2014.[11]

Applications[edit]

Specifications[edit]

Data from Pratt & Whitney[22]

General characteristics

  • Type: Turbofan
  • Length: 150 inches (3,800 mm)[22]
  • Diameter: 56.0–81.0 inches (1,422–2,057 mm)
  • Dry weight:

Components

  • 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

Performance

The PW1000 Family[23]
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
PW1124G 81 in (210 cm) 12.5:1 24,000 lbf (110 kN) -15% -20 dB -3,600 -55% 1GF-3LPC-8HPC-2HPT-3LPT A319neo
PW1127G 81 in (210 cm) 12.5:1 27,000 lbf (120 kN) -15% -20 dB -3,600 -55% 1GF-3LPC-8HPC-2HPT-3LPT A320neo October 2015
PW1133G 81 in (210 cm) 12.5:1 33,000 lbf (150 kN) -15% -20 dB -3,600 -55% 1GF-3LPC-8HPC-2HPT-3LPT A321neo
PW1135G[24] 81 in (210 cm) 12.5:1 35,000 lbf (160 kN) -15% -20 dB -3,600 -55% 1GF-3LPC-8HPC-2HPT-3LPT A321neo
PW1215G 56 in (140 cm) 9:1 15,000 lbf (67 kN) -12% -15 dB -2,700 -50% 1GF-2LPC-8HPC-2HPT-3LPT MRJ70 2017
PW1217G 56 in (140 cm) 9:1 17,000 lbf (76 kN) -12% -15 dB -2,700 -50% 1GF-2LPC-8HPC-2HPT-3LPT MRJ90 2017
PW1428G 81 in (210 cm) 12:1 28,000 lbf (120 kN) -15% -20 dB -3,600 -55% 1GF-3LPC-8HPC-2HPT-3LPT Irkut MC-21-200 2017
PW1431G 81 in (210 cm) 12:1 31,000 lbf (140 kN) -15% -20 dB -3,600 -55% 1GF-3LPC-8HPC-2HPT-3LPT Irkut MC-21-300 2017
PW1519G 73 in (190 cm) 12:1 19,000 lbf (85 kN) -14% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT CSeries CS100 2nd half 2015
PW1521G 73 in (190 cm) 12:1 21,000 lbf (93 kN) -14% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT CSeries CS100/300 2nd half 2015
PW1524G 73 in (190 cm) 12:1 23,300 lbf (104 kN) -14% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT CSeries CS300 2nd half 2015
PW1715G 56 in (140 cm) 9:1 15,000 lbf (67 kN) -12% -15 dB -2,700 -50% 1GF-2LPC-8HPC-2HPT-3LPT E-Jets E2 175 2018
PW1919G 73 in (190 cm) 12:1 19,000 lbf (85 kN) -15% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT E-Jets E2 190/195 2018
PW1921G 73 in (190 cm) 12:1 21,000 lbf (93 kN) -15% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT E-Jets E2 190/195 2018
PW1922G 73 in (190 cm) 12:1 22,000 lbf (98 kN) -15% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT E-Jets E2 190/195 2018
PW1923G 73 in (190 cm) 12:1 23,000 lbf (100 kN) -15% -20 dB -3,000 -55% 1GF-3LPC-8HPC-2HPT-3LPT E-Jets E2 190/195 2018

See also[edit]

Related development
Comparable engines
Related lists

References[edit]

  1. ^ Pratt & Whitney's surprise leap.
  2. ^ Pratt & Whitney's next leap in engine technology
  3. ^ The Short Life and Untimely Demise of the PW8000
  4. ^ "P&W readies for CSeries "third knob" engine testing". Retrieved 2011-02-27. 
  5. ^ "P&W launches geared turbofan plane engine". The Gazette. 2008-07-14. Retrieved 2008-07-14. 
  6. ^ a b Garvey, William. Pratt Gears Up for PW1000G Aviation Week. Accessed: 9 January 2011.
  7. ^ Airbus-owned A340 flies P&W geared turbofan engine
  8. ^ "Pratt & Whitney geared PW1524G testing underway". Retrieved 2010-10-31. 
  9. ^ News - Media Centre. Bombardier. Retrieved on 2013-12-09.
  10. ^ FAA Certifies PurePower® Engine for A320neo Aircraft
  11. ^ "A320neo Completes First Flight". Retrieved 2015-05-320.  Check date values in: |accessdate= (help)
  12. ^ Jon Ostrower (30 Nov 2010). "Airbus set to launch A320 NEO". flight international. 
  13. ^ "Airbus offers new fuel saving engine options for A320 Family" (Press release). Airbus. 1 December 2010. 
  14. ^ Mary Kirby (13 Apr 2010). "P&W seals deal to begin design on GTF for Russia's MS-21". flight international. 
  15. ^ PurePower "PW1000G Engine". Pratt & Whitney. 
  16. ^ "PurePower PW1700G & PW1900G Engines" (PDF). Pratt & Whitney. 
  17. ^ Ernest S. Arvai (February 6, 2013). "Embraer Launches E-Jet RE: Assessing the Impact". airinsight. 
  18. ^ "Pratt & Whitney Launches Geared Turbofan Engine with Mitsubishi Regional Jet" (Press release). Pratt & Whitney. 9 Oct 2007. 
  19. ^ Stephen Trimble (9 Oct 2007). "Pratt & Whitney Geared Turbofan engine selected to power Mitsubishi Regional Jet". Flight international. 
  20. ^ "Russia will start the production of Sukhoi SuperJet NG in 2019-2020". ruaviation.com. 2 August 2013. 
  21. ^ "Fokker 120 specifications". Rekkof Aircraft. 
  22. ^ a b "PurePower Engine Family Specs Chart" (PDF). Pratt & Whitney. 
  23. ^ PW1000G "MTU Aero Engines". MTU. Retrieved 2013-12-09. 
  24. ^ "Pratt & Whitney Unveils Higher Thrust PurePower Engine" (Press release). Pratt & Whitney. 20 May 2014. 
  • 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[edit]