Ray's Apu

Ray's APU (Auxiliary Power Unit) is a small, self-contained engine system used in aircraft to generate electricity and provide compressed air when the main engines are off, such as on the ground or during startup. It ensures the aircraft's systems, like lighting, climate control, and avionics, operate smoothly without relying on external power sources. Essentially, it's a portable power and air supply for the aircraft, enhancing efficiency and independence during ground operations or emergency situations.