Aircraft engine manufacturer Pratt & Whitney recently completed more than 175 hours of ground testing of a next-generation Geared Turbofan (GTF) engine propulsor technology as part of the Federal Aviation Administration’s (FAA) Continuous Lower Energy, Emissions and Noise (CLEEN) program, an FAA NextGen initiative to accelerate the development of environmentally-friendly aircraft technologies.

The full-scale test marks 10 years since Pratt & Whitney first successfully demonstrated GTF, a revolutionary new engine that delivers 16 percent better fuel efficiency, 50 percent lower nitrogen oxide emissions to the regulatory standard and 75 percent smaller noise footprint.

“The success of this ground test is an important step in taking our Geared Turbofan engine technology to the next level,” said Alan Epstein, vice president of Technology and Environment for Pratt & Whitney. “We are working to make sure the next generation GTF engine—already a game-changer—remains on the cutting edge of performance and sustainability.”

Pratt & Whitney continues to advance the compressor and turbine technology in collaboration with the FAA a part of the CLEEN II program, a follow-on program that develops and demonstrates aircraft technology and alternative jet fuels.

The engine successfully operated in a design space never demonstrated with significantly fewer lower-pressure ratio blades than the current production engine. The rig and engine tests are expected to demonstrate a suite of technologies that will help reduce fuel burn by an additional two percent.