GE Aviation and NASA will begin wind tunnel evaluations of a counter rotating fan-blade system for an open rotor engine at the Glenn Research Center in Cleveland this summer. GE is investigating open rotors as part of CFM International’s LEAP advanced development program for a 25,000-35,000-pound thrust engine to power a 737/A320 replacement. Bench tests of the LEAP-X core engine are just getting underway at GE’s Evendale, Ohio, headquarters. LEAP-X is expected to be ready for launch by ...

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