auxiliary power unit 1
noundomain: artefact
EnWordnet [ver.5.0]
'%3e%3cpath%20d='M0,0%20v30%20h60%20v-30%20z'%20fill='%23012169'/%3e%3cpath%20d='M0,0%20L60,30%20M60,0%20L0,30'%20stroke='%23fff'%20stroke-width='6'/%3e%3cpath%20d='M0,0%20L60,30%20M60,0%20L0,30'%20clip-path='url(%23t)'%20stroke='%23C8102E'%20stroke-width='4'/%3e%3cpath%20d='M30,0%20v30%20M0,15%20h60'%20stroke='%23fff'%20stroke-width='10'/%3e%3cpath%20d='M30,0%20v30%20M0,15%20h60'%20stroke='%23C8102E'%20stroke-width='6'/%3e%3c/g%3e%3c/svg%3e)
EnglishDefinition
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
- APU 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.
