Product
Photo: Honeywell
The Honeywell 131-9A APU.
Auxiliary Power Units with two-stage axial turbine and single starter/generator, offering longer engine life and greater fuel-efficiency (with HEM upgrade - redesigned diffuser and autonomous airflow regulation). Includes 131-9A APU (primarily for Airbus, offered with ignition exciter upgrade), 131-9B APU (primarily for Boeing, with 331-500 Series oil cooling eductor), 131-9C APU, and 131-9D APU. Also known as GTCP131-9 APU with GTCP: Gas Turbine Compressor Power.
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