CMC exhaust cone sees first commercial flight

The ceramic matrix composite (CMC) exhaust cone demonstrator was certified on April 22, 2015 by the European Aviation Safety Agency for use on commercial flights.

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The ceramic matrix composite (CMC) exhaust cone designed by Safran (Paris, France) made its first commercial flight on June 16, 2015, on a CFM56-5B engine powering an Air France Airbus A320 jetliner. Safran designed, built and ground-tested the exhaust cone demonstrator through two of its companies, Herakles and Snecma.

After carrying out its initial tests on an A320 in 2012, the ceramic matrix composite exhaust cone demonstrator was certified on April 22, 2015 by the European Aviation Safety Agency (AESA) for use on commercial flights. Safran believes the certification confirms its ability to develop advanced CMC parts that meet aviation requirements going forward. 

For more than 30 years now, Herakles has developed, produced and marketed high-temperature-resistant composite materials at its Bordeaux plant, for a wide range of aerospace, defense and industrial applications These materials are based on carbon fibers and matrices, making them both strong and light. They stand up to very high temperatures and extreme environments. They are most notably used on the nozzle of the Rafale fighter and several rocket engines.

The CMC exhaust cone project was supported by the French government and the Aquitaine Regional Council.