What is the maximum ITT permissible on takeoff?

The maximum Interstage Turbine Temperature (ITT) permissible on takeoff is critical for ensuring the safe and efficient operation of the engine. An ITT that exceeds the specified limit can lead to engine damage or reduced performance, potentially compromising flight safety.

The value of 820 degrees Celsius is established based on engine design specifications and safety margins that account for the stresses placed on engine components during takeoff. This temperature represents the maximum threshold that allows the engine to operate effectively while minimizing the risk of overheating or component failure.

Understanding this limit is essential for pilots and maintenance personnel as it influences operational decisions during takeoff procedures. Being aware of engine parameters and adhering to operational limits ensures that aircraft can perform optimally while maintaining safety standards.