Hello IFC I thought about this request for sometime and I’ve tried looking for a topic the same but they where closed. So what’s an APU (Auxiliary Power Unit)? It is a sort of generator used on the ground once the engines are off to supply power and air conditioning to the aircraft. Quite often when exiting the aircraft down the steps outside you’ll hear a sort of winning noise that’s the APU found on an A320 where the cone is (APU is in most aircraft). So in Infinite Flight I’d love to see a button to turn APU on when the engines are off. Just to let you all know that whilst the planes up at 30,000 ft engine one is in control of the power.