The aero-acoustic geometry fan blades, fan case and several other parts of CFM International’s Leap engine series will be the first major engine application of a new technology, 3-D woven composites. The process was pioneered by Albany Engineering Composites (AEC), a U.S. company that has teamed with CFM parent company Snecma and has granted the French engine maker exclusivity for its process (for propulsion applications) for the life of the Leap program.
Big Ass Fans is here at NBAA (Booth No. 8061) displaying two of its most popular aviation application fans: the Powerfoil X Plus and the AirGo.
“The Powerfoil X Plus fans range in size from ten to twenty-four feet in diameter,” said a spokesperson for the Lexington, Ky.-based company.
Bombardier Learjet 60, Palm Springs, Calif., March 31, 2007–N244X, operated by Jet Solutions, suffered a loss of power in its left engine while cruising at 41,000 feet msl. The pilots told investigators they heard a loud bang and the twinjet began to vibrate. They shut down the left engine, declared an emergency and diverted to Palm Springs Airport. No one was injured.
Technofan is demonstrating its new cooling fans here at the Paris Air Show (Hall 2B Stand D13). The Safran group subsidiary’s design engineers are working to further improve ventilation systems for passenger cabins, avionics bays and wheel brakes. On the new A380 airliner, for instance, a series of innovations is already making cooling fans smarter.
GKN Aerospace has won approval from Snecma Services to repair and overhaul CFM56-5B fan blades. The authorization covers the restoration of the blades’ overall length and midspan shrouds. Critical to the engine’s efficient operation, the blade length and midspan shroud dimensions erode over time.