In-depth stories about aviation technology, engineering, development and production. Inside Aviation takes a closer look at the technologies, processes and companies behind modern aircraft and aerospace systems.
Inside Aviation
APU on an Aircraft: What the Auxiliary Power Unit Does on the Ground and in Flight
On modern commercial aircraft, the Auxiliary Power Unit (APU) is generally a small gas turbine, but it is not a miniature main engine. Its purpose is not propulsion but the supply of secondary energy – […]
