What is the role of an aircraft pushback vehicle?

The role of an aircraft pushback vehicle is primarily to safely push the aircraft away from the gate. This function is crucial in airport operations as it ensures that the aircraft can be moved from its parked position to the taxiway without any risk of collision or damage. The pushback vehicle is designed to provide the necessary force and maneuverability to guide the aircraft, which may not be able to move on its own while parked.

While the other options outline important functions related to aircraft operations, they do not accurately describe the specific role of the pushback vehicle. Transporting luggage is typically handled by specialized vehicles designed for that purpose, and providing electricity while parked is a task for ground power units (GPUs). Towing the aircraft to a maintenance area is done by different towing equipment, typically referred to as tow tractors, which are distinct from pushback vehicles. Thus, the focus of the pushback vehicle is exclusively on the safe departure of the aircraft from the gate.