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). The engine is expected to deliver reductions in fuel use and ground noise when used in next-generation aircraft. The first engines are planned to begin commercial use before the end of 2015.[1]

Development

Pratt & Whitney first attempted to build a geared turbofan starting around 1998, with the PW8000.[2] This essentially was an upgrade of the existing PW6000 that replaced the fan section with a gearing system and new single-stage fan.[3] After several years of development the PW8000 essentially disappeared.[4] 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) program, 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.[5] However, the VAFN has since been dropped from production designs due to high system weight.

In July 2008, the GTF was renamed PW1000G, the first in a new line of "PurePower" engines.[6] 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 up to 75% quieter.[7] [1]

The engine was tested on the Pratt & Whitney Boeing 747SP,[7] 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.[8] The PW1100G was first tested on the 747SP in 2013.[9]

Testing of the PW1524G model began in October 2010.[10] The PW1500G engine successfully achieved Transport Canada type certification on February 20, 2013.[11]

The PW1100G engine successfully achieved FAA type certification on December 19, 2014.[12]

The first flight test on one of its intended production airframes, the Bombardier CS100, was on September 16, 2013.[13] The first flight of the Airbus A320neo followed on September 25, 2014.[14]

The fourth variant of the engine, the PW1900G, first flew on November 3, 2015 from Mirabel in Canada fitted to the Boeing 747SP test aircraft.[15]

Applications

Specifications

Data from EASA Type Certificate[26]

General characteristics

  • Type: Geared Turbofan
  • Length: 133.9 inches (3,401 mm) (fan spinner face to aft flange)[26]
  • Diameter: 56.0–81.0 inches (1,422–2,057 mm)
  • Dry weight: 6,300 pounds (2,857.6 kg) (PW1100G)[26]

Components

  • Compressor: Axial flow,1-stage geared fan, 2-3 stage LP, 8 stage HP
  • Combustors: Annular combustion chamber
  • Turbine: Axial flow, 2-stage HP, 3-stage LP

Performance

The PW1000 Family[27]
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 December 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[28] 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 quarter 2016
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 quarter 2016
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 quarter 2016
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

Related development
Comparable engines
Related lists

References

  1. ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ 7.0 7.1 Garvey, William. Pratt Gears Up for PW1000G Aviation Week. Accessed: 9 January 2011.
  8. ↑ Airbus-owned A340 flies P&W geared turbofan engine
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ News - Media Centre. Bombardier. Retrieved on 2013-12-09.
  12. ↑ FAA Certifies PurePower® Engine for A320neo Aircraft
  13. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  15. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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  19. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  21. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  22. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  23. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  24. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  25. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  26. ↑ 26.0 26.1 26.2 Lua error in package.lua at line 80: module 'strict' not found.
  27. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  28. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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External links

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