The A350 XWB will feature a 1,700 shp HGT1700 auxiliary power unit by Honeywell, which has 10% greater power density than the previous generation of the Honeywell's 331 APU family. Honeywell will also supply the air management system which comprise the bleed air, environmental control, cabin pressure control and supplemental cooling systems. The ram-air turbine will be now localized on the belly and the generator requirement is 100 kVA compared to 150 kVA for the A380. The selection of US-based Honeywell supplier is part of Airbus strategy to select complete work packages to a smaller number of major suppliers who are becoming system integrators on the programme.
