![]() ![]() In short, if the jet engines are kept on, many of the ground support activities would not remain possible. Requirement of Aircraft Ground Power Unit falls between landing and takeoff You can read more about all of the different ground handling activities performed on an aircraft at an aircraft stand here. ![]() When an aircraft is parked at an aircraft stand, there is tremendous movement all around it. Moreover, many electrical and electronic systems are required to be kept on for allowing pilots and aircraft technicians to conduct post flight technical checks.Īt this stage, pilots cannot keep the jet engines on because it is a safety hazard for ground staff that gets busy with different tasks around the aircraft. The aircraft still requires electrical power during passenger disembarkation, aircraft servicing and passenger embarkation for the next flight.Īircraft lights are required to be kept on for allowing the airline staff to undertake cleaning of passenger cabin to make it ready for the next flight. When the aircraft reaches and stops at the aircraft stand, requirements of thrust remain no more, however, requirement of electrical power remains. The pilot may turn on the Auxiliary Power Unit (APU) if needed to fulfill aircraft’s power requirements. When an aircraft lands, pilots generally keep at last one jet engine on for providing the aircraft enough thrust to taxi to the allotted aircraft stand as well as keep all of the electrical systems energized. These systems include all control systems, flight instruments, navigational aid and communication equipment and devices, electrical motor driven mechanisms cockpit and cabin lighting system appliances in onboard kitchen like ovens and refrigerators, passenger address (PA) or announcement system and entertainment systems such as display screens and mobile or laptop chargers. the jet engines on an aircraft not only generate thrust to make the aircraft fly but also act as electrical power plants to supply power to all critical and auxiliary systems during flight. When an aircraft is in air, all of its electrical power requirements are fulfilled by jet engines i.e. Why Aircraft Ground Power Unit (AGPU) is Needed? Comparison of AGPU Types – How to choose?.Basic Operation of Aircraft Ground Power Unit (AGPU).History of 400 Hz Standardization & Aircraft Ground Power Units (AGPU).Why do aircrafts need 400 Hz power supply?.Why Aircraft Ground Power Unit (AGPU) is Needed?. ![]()
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