What does G.P.U. stand for in ground support equipment?

In the context of ground support equipment, G.P.U. stands for Ground Power Unit. This unit is essential for providing electrical power to an aircraft while it is on the ground, especially when the engines are not running. The Ground Power Unit typically supplies the necessary voltage and amperage to support various systems within the aircraft, including avionics and cabin power. It allows for pre-flight checks and operations that require electrical power without needing to start the aircraft's engines, which can save fuel, reduce engine wear, and minimize emissions.

Understanding the purpose and function of the Ground Power Unit is crucial for anyone involved in ground operations, as it plays a vital role in the efficiency and safety of aircraft management on the ramp.