LIGHT OFF: Sikorsky’s CH-53K Heavy-Lift helicopter has conducted the first test of its Auxiliary Power Unit (APU) engine, signaling the program is ready to begin formal integration testing early next ...

LYON, France—A system designed to enhance the performance of the Ariane 6 that has contributed to the launcher’s development delays has now completed qualification testing. The evaluation campaign for ...

DENTON, Texas — Delphi and Peterbilt recently demonstrated a solid oxide fuel cell APU, which was able to successfully power a Peterbilt 386’s electrical system while providing air-conditioning ...

H3 Dynamics has developed a hydrogen fuel cell-based auxiliary power unit for non-propulsive power needed by aircraft. The VH-4T-RD hardware is a pre-cursor to the VH-4T-415 production powertrain ...

Hamilton Sundstrand, manufacturer of the APS5000 auxiliary power unit (APU) has completed extended twin engine operations (ETOPS) ground tests in preparation for the entry into service of the Boeing ...