What is the maximum electrical output of the APU generator at altitudes up to FL410?

The maximum electrical output of the APU generator at altitudes up to FL410 is 40 kVA. This specification is crucial for understanding the aircraft's auxiliary power capabilities, especially when the main engines are not operational or while on the ground. The APU (Auxiliary Power Unit) is designed to provide electrical power for avionics, lighting, and other ground support services when the aircraft is not connected to ground power.

The 40 kVA output allows for sufficient power to support essential systems during critical flight phases and on the ground, ensuring that the aircraft operates effectively without relying solely on the engine generators. This capability is particularly important during high-altitude operations, as the load on electrical systems may increase due to varied demands.

Knowing this limit is essential for pilots and flight crews to prevent overloading the APU generator, which could result in reduced reliability or failure to provide necessary power, affecting safety and operational efficiency. Understanding the limitations of the APU generator helps ensure smooth and safe aircraft operations.