Auxiliary Power Units (APU)

Our PW980 is the largest APU in commercial airline service. This APU is a two-shaft gas turbine engine, specifically designed for the Airbus A380 wide-body jet liner. During on-ground operation, it provides bleed air for cabin conditioning from a low spool-driven load compressor, main engine start capability, and electrical power from two gearbox-mounted, 120kVA generators. The APU is also designed to deliver in-flight backup power.

Pratt & Whitney’s APS3200 is the Airbus baseline APU of choice for the Airbus A320 family of aircraft. It is designed to meet performance and environmental requirements for modern day, single-aisle aircraft. The APU comprises a single-shaft, fixed-speed, high-pressure ratio core driving a load compressor that provides bleed air for cabin conditioning and main engine starting, concurrent with 90kVA of electrical power. The APU is also certified for a 180-minute Extended range Twin Operations (ETOPs) operation.

The Pratt & Whitney APS2300 APU was designed for the rigorous utilization of 60- to 110-passenger regional jet aircraft, namely the Embraer 170/195-series aircraft. The APS2300 is generally accepted as the industry’s most reliable APU available today. The APS2300 APU is installed in Embraer's fleet of E170/175/190/195 regional jets as well as Embraer's Lineage 1000 business jets. The APS2300 APU is an integral bleed, constant speed, continuous cycle gas turbine engine that incorporates a single-stage centrifugal compressor, a reverse flow annular combustor, and a two-stage axial turbine. The APS2600 APU is the latest generation regional aircraft APU system available today. Derived from the APS2300, it has been designed to match today's regional market requirements.