What is the continuous APU EGT limit?

The continuous APU EGT (Exhaust Gas Temperature) limit is significant as it helps ensure the safe and efficient operation of the Auxiliary Power Unit. The correct limit of 717°C allows the APU to operate within a temperature range that prevents damage while providing sufficient thrust and power output. Exceeding this temperature can lead to increased wear or potential failure of the APU, affecting aircraft operations.

The other options are either lower or higher than the established continuous EGT limit. While 590°C and 700°C are below the correct threshold, indicating they are not suitable for continuous operation, 720°C exceeds the safe limit, indicating a risk of operational failures and potential damage. Understanding these limits is essential for pilots and maintenance personnel to ensure the APU functions properly without compromising safety.