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GR & Boeing Demo. Quiet Technology

On August 10, 2005, in Glasgow, Montana, a variety of systems and technology from Goodrich Corporation flew onboard a Boeing 777-300ER production aircraft. The aircraft flew as part of Boeing's "Quiet Technology Demonstrator 2" program, which focuses on advancing the technology of noise reduction for future commercial aircraft applications such as the 787 Dreamliner. The three-week program represents a collaboration between Goodrich's Aerostructures division, Boeing and other major, international, aerospace giants: General Electric; All Nippon Airways of Japan; and the National Aeronautics and Space Administration (NASA).

According to Colin Cramp, Vice President, Goodrich Aerostructures division, "We are excited to have this opportunity to demonstrate innovative technologies we have been developing for the 787 Dreamliner and future commercial aircraft programs. By designing and testing a one-piece acoustic inlet liner for the 777-300ER nacelle, we have developed the expertise and capability to implement this technology into future production products such as the 787. We hope to demonstrate how both the improved one-piece inlet liner and an acoustically treated, inlet lip will nearly eliminate the fan tone noise heard by those onboard and those on the ground. We are confident our airline partners, as well as the flying public, will reap the benefits of our noise reduction efforts for years to come."

In addition to the inlet liner technologies to be demonstrated, Goodrich's Aerostructures, Landing Gear and Wheels and Brakes divisions, under contract to NASA, have designed and fabricated noise reducing aerodynamic fairings for the 777-300ER main landing gear. "As we steadily reduce the noise level of the propulsion system, we find the noise generated by the landing gear and high lift surfaces can be significant during approach and landing. One goal of this program is to demonstrate how future landing gear designs can incorporate noise reduction devices simply and safely," continued Cramp.

Boeing's Walt Gillette, Vice President, 787 Airplane Development, added, "Once we have demonstrated the success of these noise reducing technologies, we will be in a position to implement them not only on the 787 but on other Boeing airplanes as well, ultimately benefiting our customers and the communities in which they fly."

Goodrich Corporation, a Fortune 500 company, is a global supplier of systems and services to aerospace, defense and homeland security markets. With one of the most strategically diversified portfolio of products in the industry, Goodrich serves a global customer base with significant worldwide manufacturing and service facilities. For more information visit http://www.goodrich.com.



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