Auxiliary power units (APU) provide vehicles with energy for functions other than propulsion. They are employed in aircraft, ships, and some land vehicles to perform tasks such as starting main ...

But there's another engine hidden int he back of the tail. Called the auxiliary power unit (APU) It's the smallest engine on a plane. But you could say it's the most important one of all.

these external power systems are preferred over using the aircraft's on-board auxiliary power unit (APU). Standard aircraft power requirements include 28VDC and 110VAC at 400Hz. GPU power is used for ...

The second flight of Europe’s Ariane 6 rocket, and its first commercial mission, has slipped from December to no earlier than mid-February, Arianespace announced Nov. 8.

CNW/ - As part of its continued commitment to a strong aerospace sector in Canada, the Government of Canada is making investments that will foster innovation and bolster competitiveness in the ...