Farnborough: Geared turbofan advances

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This story is sourced from Flight International
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Pratt & Whitney's plans to develop a geared turbofan (GTF) engine aimed at the next generation of Airbus and Boeing single-aisle aircraft have taken another step forward with the formation of strategic development relationships with MTU Aero Engines, Avio and Volvo Aero.

Under the agreements, MTU will supply core components, in particular the high-pressure (HP) compressor and integrally bladed rotors, Avio will develop an advanced fan-drive gear system, while Volvo Aero will provide the turbine exhaust case.

The US engine maker plans to run a ground demonstrator in the third quarter of 2007 and a flight demonstrator in 2008.

P&W estimates the GTF will provide a 12% improvement in fuel efficiency compared with conventional engines.