An auxiliary power unit (APU), is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft and naval ships as well as some large land vehicles.

2022年9月25日 · It is for a second, much smaller, turbine engine that all commercial jets have. This auxiliary power unit (APU) provides important electric power for aircraft systems and bleed air to start the main engines.

2021年1月27日 · The APU (Auxiliary Power Unit) is the power unit contained on an aircraft which can provide electrical and pneumatic (air) power. The GPU (Ground Power Unit) is connected by the ground crew when the aircraft arrives at the gate an provides electrical power only.

2024年8月19日 · The Auxiliary Power Unit (APU) is a small gas turbine engine located typically at the tail of the aircraft. It’s responsible for providing energy to various systems when the main engines are not operational. Essentially, the APU allows an aircraft to function independently of ground power and can start the main engines without external ...

2022年6月7日 · APU stands for ‘auxiliary power unit’. It is a small engine, often mounted in the tail, providing electrical power and compressed air on the ground and occasionally in flight. Unlike regular jet engines, it isn’t used to provide thrust.

2023年7月1日 · The APU is a self-contained engine-like device located at the rear of an aircraft. In most commercial airliners, the APU is situated in the tail cone area, near the empennage of the aircraft. This positioning allows for efficient exhaust and minimizes the impact of noise and vibration on the cabin and cockpit areas.

2018年3月10日 · An aircraft auxiliary power unit serves as an additional energy source normally used to start one of the main engines on an airliner or business jet. The APU is equipped with an extra...

2023年12月10日 · The APU is a small turbine engine located in the tailcone of most commercial and civil aircraft. The APU is used for non-propulsion functions, such as pressuring air for starting engines, providing electrical power, powering the environmental control …

2009年5月4日 · Often found in the tails of larger jets and turboprops, APUs serve several useful purposes. APU generators provide auxiliary electrical power for running aircraft systems on the ground when the main engines aren’t running and no ground electrical power is available.

2024年7月9日 · The Auxiliary Power Unit (APU) is a small, independent engine that plays a crucial role in modern aircraft. Its primary function is to start the main engines and power essential onboard systems while the aircraft is parked at the airport.