General Electric conducted the first test of the GEnx-1B on its 747 flying testbed last week in California. The aircraft flew for 3 hr. and climbed to more than 43,000 ft. in order to establish a performance baseline for future testing. "The engine performed extremely well. . .Today's flight puts us another step closer to certification later this year. . .for the Boeing 787," GEnx GM Tom Brisken said. The 747 testbed was modified last month to manage the electrical load from the engine's two ...

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