Honeywell’s Variable-Speed APU Debuts on A350

The A350 is equipped with the most powerful auxiliary power unit (APU) ever built by Honeywell (Chalet 106), 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...

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