Geared turbofan on track to start testing in the coming weeks

Washington DC
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Pratt & Whitney says it is on track to begin testing its first PW1000G geared turbofan engine "later this summer" based in part on more than 100h of successful testing of an engine core running at its Longeuil, Quebec facility.

The company is developing two different size cores with the same architecture - eight high pressure compressor stages, a low emissions combustor, and two high pressure turbine stages -- to support a wide range of aircraft.

A 20,000lb-24,000lb (89kN - 107kN) thrust version of the PW1000G, selected by Bombardier for the CSeries twinjet and set for a 2013 entry into service (EIS), is the first to be built.

A 15,000lb - 17,000lb core that will be used to power the Mitsubishi Regional Jet will follow. The MRJ is slated for EIS in 2014.

The smaller core will also be used for the 10,000lb - 20,000lb PW800 engine for the business aviation market.

The PW1000G has also been selected to power the proposed Irkut MC-21 twinjet for a 2016 EIS, though the company has not yet begun building a demonstrator engine for the project.

"We are extremely pleased with the core test results indicating that the overall engine performance is well aligned with expectations," says Paul Adams, Pratt & Whitney's SVP of engineering of the core test.