What does the acronym "GPU" stand for in ramp operations?

The acronym "GPU" stands for "Ground Power Unit" in ramp operations. A Ground Power Unit is an essential piece of ground support equipment used at airports to provide electrical power to an aircraft while it is on the ground. This equipment is crucial for maintaining the aircraft's systems when the engines are not running, allowing for functions such as lighting, avionics, and cabin climate control to be operational without the need for the aircraft's own power sources.

Understanding the role of a Ground Power Unit is important for ramp operations personnel, as it directly impacts the efficiency and safety of aircraft servicing. Proper use of the GPU allows the crew to perform maintenance and preparations without having to start the aircraft engines, thus conserving fuel and minimizing emissions during ground operations.