General Electric is in the midst of its biggest civil engine certification ramp-up for two decades as it prepares the GEnx-1B and -2B for first flights on the Boeing 787 and 747-8, respectively. “We haven’t certificated two engines back-to-back since the CF6-80C2 in the 1980s,” says GEnx program manager Tom Brisken. Delays to the 787 and 747-8 have resulted in “both engine programs being stacked up on top of each other. In terms of certification, manufacturing and first flight on the two ...

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