APU 1
noundomain: artefact
EnWordnet [ver.5.0]
Definition
a device on a vehicle that provides energy for functions other than propulsion, found on large aircraft, naval ships, as well as some large land vehicles.
Examples
- 1.APUs fitted to extended-range twin-engine operations (ETOPS) aircraft are a critical safety device, as they supply backup electricity and compressed air in place of the dead engine or failed main engine generator.
Synonyms
- auxiliary power unit 1
a device on a vehicle that provides energy for functions other than propulsion, found on large aircraft, naval ships, as well as some large land vehicles.


