Honeywell’s Variable-Speed APU Debuts On Airbus A350

The A350 is equipped with the most powerful auxiliary power unit (APU) ever built by Honeywell, producing 200 shp more than the 331-600, the previous top-of-the-line model, but with virtually no additional weight. A redesigned reduction gearbox accommodates the more-powerful 230-volt AC, 150-kVA...
Fred George

Fred formerly was senior editor and chief pilot with Business & Commercial Aviation and Aviation Week's chief aircraft evaluation pilot. He has flown left seat in virtually every turbine-powered business jet produced in the past three decades.

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