How does Aircraft function its Electrical system and ACU when the main engines are off?
Posted by Manish Patil - Pilot Administrator at IndiGo (InterGlobe Aviation Ltd) on 25th Oct 2023
The airplane’s electric system and ACU (Air Conditioning Unit) run either on GPU - Ground Power Unit or APU - Auxiliary Power Unit.A Ground Power Unit (GPU) can be either a fixed (connected to Aerobridge) or mobile unit. These power units usually consist of a generator powered by a diesel engine.APU
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