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Results tagged with apu
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user 3677
Auxiliary Power Unit. A device for providing alternate power to an aircraft, usually located in the aircraft's tail.
28
votes
Accepted
What role did the RAT (Ram Air Turbine) play on US Airways flight 1549?
According to that report Sullunberger did immediately start the APU which did deliver power and they determined they did not need to manually deploy the RAT. … Further, immediately after the loss of
engine thrust, the captain started the APU. …
- 102k
3
votes
How are the services kept running on a plane without an APU?
Generally, aircraft that have no APU or an inop APU will rely on a ground power unit to keep the lights on when parked. …
- 102k
3
votes
Accepted
How much electrical power is available in a Gulfstream G550 and from which power sources?
APU? GPU? Other?)
The engines (while running) are generally the main source of power. … The APU is often used on the ground when the engines are off but the plane needs electronics on and can also serve to help start the engines. It does appear the G550 has an APU. …
- 102k