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Nexcelle’s innovative nacelle system is certified with CFM International’s LEAP-1C engine for the COMAC C919 jetliner

Cincinnati, Ohio, December 22, 2016 – This week's certification of the LEAP-1C engine and its Nexcelle-developed nacelle system marks a key milestone for the Safran/General Electric joint venture in pioneering a new generation of integrated propulsion systems.


The CFM International LEAP-1C will power China's COMAC C919 jetliner, and includes the first use of Nexcelle's innovative O-Duct thrust reverser system – which reduces weight, increases thrust reverser efficiency and facilitates engine maintenance.

Certification of the LEAP-1C to CS-E/Part 33 airworthiness standards was signed December 21 in Cologne, Germany by the European Aviation Safety Agency (EASA) and the U.S. Federal Aviation Administration (FAA).  

"This certification milestone represents the dedication and professionalism of teams in our two parent companies, GE Aviation's Middle River Aircraft Systems and Safran Nacelles, which have contributed their know-how and excellence in developing the LEAP-1C's nacelle system," said Nexcelle President Kenneth Onderko. "It also marks an aviation industry achievement by providing a truly integrated propulsion system, resulting from the close cooperation of Nexcelle as the nacelle system provider and CFM International as the engine manufacturer."

The LEAP-1C's composite O-Duct thrust reverser was developed by Safran Nacelles, with its unique one-piece configuration contributing to a reduced overall structural weight.  The design also removes the flowpath bifurcation of two-piece D-Duct designs found in traditional thrust reversers, thereby increasing thrust reverser efficiency. 

Other advantages are the use of an electrical thrust reverser actuation system (E-TRAS) that drives the O-Duct aftward to its reverse thrust position, replacing heavier hydraulics; as well as the improved engine maintenance resulting from easier access to the LEAP-1C's engine core and the thrust reverser components.

The twin-engine C919 currently is being readied for its maiden flight in 2017.

About Nexcelle (www.nexcelle.com)
Nexcelle is creating smart nacelle systems for tomorrow's world travel.  Headquartered in Cincinnati, Ohio, USA, the company is a 50/50 joint venture of Safran Nacelles and Middle River Aircraft Systems (MRAS), which are leading suppliers of engine nacelles, thrust reversers and aerostructures.  Through Nexcelle's relationship with CFM International, GE Aviation and Safran, the joint venture brings unparalleled expertise in the design, development, production and support of integrated propulsion systems for a wide range of aircraft.

Safran is a leading international high-technology group with three core businesses: Aerospace (propulsion and equipment), Defence and Security. Operating worldwide, the Group has 70,000 employees and generated sales of 17.4 billion euros in 2015. Safran is listed on Euronext Paris and is part of the CAC40 index, as well as the Euro Stoxx 50 European index.

Safran Nacelles is the world's second leading supplier of aircraft engine nacelles, with more than 17,000 in service, logging over 100,000 flight-hours per day. It supplies nacelles and components for all segments of the aviation market, from business and regional jets to mainline commercial jets.

For more information: http://www.safran-group.com and www.safran-nacelles.com / Follow @Safran and @SafranNacelles on Twitter.

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