auxiliary power unit


auxiliary power unit
A power generation unit for operation of systems like hydraulic, air conditioning, electrical, and avionics. It may provide AC (alternate current) or DC (direct current) supply. The APU is normally used prior to starting the aircraft and for testing systems on the ground. In rare cases, it can provide some thrust in an emergency. Ground auxiliary power units provide current for starting engines. See airborne/auxiliary power unit.

Aviation dictionary. 2014.

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  • Auxiliary power unit — Saltar a navegación, búsqueda APU situado al final de la cola de un Airbus A380 El APU o Unidad de Energía Auxiliar (Auxiliary Power Unit, en inglés) de un avión es un dispositivo, con estructura idéntica a la de un motor, pero con la… …   Wikipedia Español

  • Auxiliary Power Unit — Auxiliary Power International Corporation (APIC) APU APS3200 für die Airbus A320 Familie Ein Hilfstriebwerk (engl. auxiliary power unit, APU) ist ein Hilfskrafterzeuger, der hauptsächlich in Flugzeugen verwendet wird. Luftfahrttechnik Das… …   Deutsch Wikipedia

  • Auxiliary power unit — Auxiliary Power International Corporation (APIC) APU APS3200 für die Airbus A320 Familie Ein Hilfstriebwerk (engl. auxiliary power unit, APU) ist ein Hilfskrafterzeuger, der hauptsächlich in Flugzeugen verwendet wird. Luftfahrttechnik Das… …   Deutsch Wikipedia

  • Auxiliary power unit — An auxiliary power unit (APU) is a device on a vehicle whose purpose is to provide energy for functions other than propulsion. Different types of APU are found on aircraft, as well as on some large ground vehicles.AircraftFunctions of APU The… …   Wikipedia

  • Auxiliary Power Unit — Groupe auxiliaire de puissance Pour les articles homonymes, voir APU. Le groupe auxiliaire de puissance (GAP), ou en anglais Auxiliary Power Unit (APU), désigne un groupe turbogénérateur auxiliaire destiné à produire de l énergie à bord des… …   Wikipédia en Français

  • Auxiliary power unit — Groupe auxiliaire de puissance Pour les articles homonymes, voir APU. Le groupe auxiliaire de puissance (GAP), ou en anglais Auxiliary Power Unit (APU), désigne un groupe turbogénérateur auxiliaire destiné à produire de l énergie à bord des… …   Wikipédia en Français

  • airborne/auxiliary power unit — A unit designed to provide pneumatic, hydraulic, and electrical power for main engine starting and aircraft services on the ground and as an emergency source during the flight. It consists of a small gas turbine engine, designed so that the… …   Aviation dictionary

  • Emergency Power Unit — Eine Emergency Power Unit bzw. Notstromeinheit ist ein reines Notaggregat und unterscheidet sich so deutlich von einer APU (Auxiliary Power Unit) wie sie z. B. bei der Panavia Tornado eingesetzt wird. Der Begriff wird im militärischen… …   Deutsch Wikipedia

  • Systems Nuclear Auxiliary Power Program — The Systems Nuclear Auxiliary Power Program (SNAP) was a program of experimental radioisotope thermoelectric generators (RTGs) and space nuclear reactors flown during the 1960s by NASA. Odd numbered SNAPs were RTG tests and even numbered SNAPs… …   Wikipedia

  • auxiliary — I UK [ɔːɡˈzɪlɪərɪ] / US [ɔɡˈzɪljərɪ] noun [countable] Word forms auxiliary : singular auxiliary plural auxiliaries * 1) a worker who helps more senior or permanent workers 2) an auxiliary verb II UK [ɔːɡˈzɪlɪərɪ] / US [ɔɡˈzɪljərɪ] adjective 1)… …   English dictionary


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