High-Performance Composites

NOV 2014

High-Performance Composites is read by qualified composites industry professionals in the fields of continuous carbon fiber and other high-performance composites as well as the associated end-markets of aerospace, military, and automotive.

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N O V E M B E R 2 0 1 4 | 2 1 he Boeing Co. (Chicago, Ill.) report- ed on Sept. 5 that it has success- fully fight tested an innovative jet engine nozzle made of a ceramic matrix composite (CMC). Designed to reduce noise, weight and reduce fuel use, the CMC nozzle was taken through a series of tests aboard Boeing's ecoDemonstrator 787 Flight Test Airplane. The regime included community noise testing, during which the plane was fown over a large acoustic array in Moses Lake, Wash. Boeing engi- neers have been working on the technol- ogy during the past fve years, says Mitch Petervary, the technology's principal investigator. Seeing all their hard work come to fruition, he noted, was gratifying. "This program began years ago with small samples in labs, and now we have fight- tested the largest oxide CMC structure in the world, and it performed at a very high level," Petervary says. "Our innovative team has worked so hard to get to this point. Seeing our technology in the sky is remarkable and is a testament to what we can achieve." This fight demonstration is part of the fve -year U.S. Federal Aviation Admin. (FAA) Continuous Lower Energy, Emissions and Noise (CLEEN) program. Boeing is one of fve industry contractors participating in CLEEN, an open, com- petitively bid, cost-sharing program fo- cused on speeding development of new technologies that improve airplane fuel effciency and decrease volatile emis- sions and noise. "The FAA CLEEN Program is very excit- ed to see Boeing's ceramic matrix com- posite exhaust nozzle fy," says Arthur Or- ton, FAA CLEEN program engineer. "The fight test of the CMC nozzle is a major milestone for this technology. Innovative technologies such as this are needed to help meet FAA's NextGen environmental goals, and represents excellent progress for the CLEEN Program." Modern en- gines have higher operating tempera- tures to achieve improved fuel effciency and reduce emissions. However, these Boeing fight tests CMC engine nozzle T THE POWER OF PEEL PLY 1-888-PEEL-PLY (733-5759) | Fax 336-510-8003 | precisionfabrics.com Precision Fabrics is an ISO 9001 certified company It takes both imagination and engineering to achieve fl ight. Today, aircraft manufacturers trust Precision Fabrics Group to help them think beyond existing material and processing limits. Working together, we can help you develop products for your specifi c applications. For more information about PFG Peel Ply that meets aerospace specifi cations, call John Houston at 1-888-PEEL-PLY, or contact one of our distributors. Technology Marketing, Inc. 801-265-0111, UT Gregory Young Sales & Service, Inc. 903-878-7291, TX Cytec Process Materials 562-906-3300, CA 44-1274-550-500, UK 33-5-6137-7791, FR 39-039-6892987, IT Northern Composites 603-926-1910, NH Flugzeug Union SUD 49-896-072-5393, Germany (continued on p. 22) Source: The Boeing Co.

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