Pratt & Whitney GTF™ engine
GTF engine
The Pratt & Whitney GTF™ engine family powers next-generation commercial aircraft. The new engines offer double-digit improvements in fuel burn, pollutant and noise emissions, and operating costs. They feature a Fan Drive Gear System which uncouples the fan from the low-pressure compressor as well as the low-pressure turbine, which drives the fan. This allows the fan to rotate at a lower speed and the low-pressure compressor and turbine much faster. As a result, the fan pressure ratios are lower and the bypass ratios much higher and all components can achieve their respective optimum speeds, which greatly boosts overall efficiency. The engine burns markedly less fuel, is cleaner and less noisy. As compared with its predecessor engines, the geared turbofan lowers carbon dioxide emissions by 20 percent, and the noise footprint of GTF-powered aircraft is reduced by 75 percent. Another advantage: The propulsion system weighs less as it has fewer compressor and turbine stages.
The GTF engine family is powering a number of different aircraft types: Airbus is offering the GTF engine family for the A320neo and A220 and Embraer has also chosen the GTF engine family as the exclusive engine for its second-generation E-Jets.
Depending on the application, MTU’s stake in the GTF engine family varies between 15 and 18 percent. The company is responsible for the high-speed low-pressure turbine and the first four stages of the high-pressure compressor. Moreover, MTU manufactures brush seals and nickel blisks for components of the high-pressure compressor for which it does not have development responsibility. The company is also responsible for the final assembly of one third of the production PW1100G-JM to be manufactured for the A320neo at its site in Munich.
To date, the GTF engine family has saved nearly 5 billion liters of fuel and avoided 14 million metric tons of CO2 emissions.
Pratt & Whitney will launch the GTF Advantage™ engine configuration, unveiling a technologically improved geared turbofan engine for the A320neo family. Key optimizations are being supplied by MTU.
Technical Data
PW1500G | PW1100G-JM | PW1700G | PW1900G | |
---|---|---|---|---|
Thrust (lbs) | 19-25 k | 24,4-33 k | 14-17 k | 19-23 k |
Bypass ratio | 12.5:1 | 12.5:1 | 9:1 | 12.5:1 |
Fan diameter | 73 in | 81 in | 56 in | 73 in |
Applications | A220 | A320neo | E-Jets Gen2 | E-Jets Gen2 |
Facts
- EIS: 2016
- Two-shaft turbofan engine in thrust category 14,000-33,000 lbf (capable of increase)
- 20% CO2 savings possible per trip with GTF-powered aircraft
- up to 50% reduction in NOx emissions
- up to 75% reduction in noise footprint
Partners
- Pratt & Whitney
- Japanese Aero Engines Corporation (JAEC)
Applications
- PW1100G-JM: Airbus A320neo
- PW1500G: Airbus A220
- PW1900G/PW1700G: Embraer E-Jets Gen2
MTU competencies
- Program share PW1500G: 17%
- Program share PW1100G-JM: 18%
- Program share PW1900G: 17%
- Program share PW1700G: 15%
- Development and manufacture of various stages of the high-pressure compressor, of the high-speed low-pressure turbine and brush seals in all applications
- 1/3 of the final assembly of the PW1100G-JM series engines takes place at MTU in Munich
PW1100G-JM
- Maintenance at MTU Maintenance Hannover, MTU Maintenance Zhuhai, EME Aero and MTU in Munich
- Start year MRO: 2016
- Workscope: Engine MRO
PW1500G
- Maintenance at EME Aero
- Start year MRO: 2021
- Workscope: Engine MRO
PW1900G
- Maintenance at EME Aero
- Start year MRO: 2023
- Workscope: Engine MRO