INFORMATIONALAug 11, 2022How Does an Aircraft APU Work?Modern airplanes are outfitted with auxiliary power units (APUs) to meet the aircraft's large energy requirements while the engines are not running. This self-contained unit represents a constant-speed gas turbine engine located in the airplane's tail cone which is isolated in a titanium fireproof compartment from the rest of the aircraft. But how does it work?Read More →