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Frequently Asked Questions

A 400 Hz Ground Power Unit (GPU) is an external power system that supplies 115/200 V, 400 Hz AC power to aircraft while they are on the ground. Aircraft electrical systems operate at 400 Hz instead of the standard 50/60 Hz utility frequency, allowing lighter electrical components and improved efficiency. A 400 Hz aircraft GPU powers avionics, lighting, cabin systems, and onboard equipment without running the aircraft engines or auxiliary power unit (APU).

Using a 400 Hz aircraft GPU improves airport ground operations by supplying clean and stable electrical power to parked aircraft. This reduces fuel consumption, noise, and exhaust emissions by eliminating the need to run the engines or APU during boarding, maintenance, or servicing. A high-quality aviation GPU also protects sensitive avionics by delivering stable voltage and frequency during ground support operations.

Yes. Our 400HZ GPU lineup is designed to meet the rigorous standards of both civilian and military aviation. Whether you are servicing a private jet or a military transport plane, a ForceStart 400HZ GPU provides the reliable AC current necessary for engine startups, repairs, and installations.

ForceStart 400 Hz GPUs are available in multiple power capacities to support different aircraft types. Typical output ratings range from 30 kVA to 90 kVA, making them suitable for helicopters, business jets, regional aircraft, and narrow-body commercial aircraft used in aviation operations.

Yes. ForceStart aircraft GPUs are engineered for reliable operation in harsh environments. These 400 Hz Ground Power Units operate within a temperature range of −40 °C to +50 °C, ensuring dependable performance in cold climates, desert environments, and demanding airport ramp conditions.

Precision is key in aviation, which is why every 400HZ GPU we offer is equipped with advanced monitoring devices. Most models feature a digital display that allows technicians to track voltage, frequency, and current in real-time, ensuring that the 400HZ GPU is delivering the exact parameters required by the aircraft.

ForceStart has built a reputation for excellence by delivering robust, high-performance ground support equipment. Our 400HZ GPU solutions are favored by ground crews across the UAE for their reliability, ease of use, and ability to streamline the 400HZ GPU servicing process for a diverse fleet of aircraft.