If you've ever noticed a little exhaust hole at the rear of a large passenger plane and wondered what it was, that's the location of the plane's APU, or auxiliary power unit. The APU is found on ...

It's called the auxiliary power unit, and it's the smallest engine on the plane. But that doesn't mean it serves a small purpose. It provides the necessary power to start the plane's engines and ...

Verdict: False The claim is baseless. It actually shows the result of an auxiliary power unit (APU) fire. Fact Check: Japan ...

Get an exclusive look at TRANSTEX’s new DClimate Lithium Pro™ electric auxiliary power unit. Designed for maximum runtime, lower emissions, and the lowest total cost of ownership, this lithium ...