What is the maximum takeoff/max ITT?

The maximum takeoff maximum ITT (Interstage Turbine Temperature) for the T-6A is indeed 820 degrees Celsius. This value is essential for ensuring that the engine operates within safe thermal limits during takeoff, which is a critical phase of flight where maximum performance is often required. Exceeding this ITT can lead to engine damage or failure, as high temperatures can cause excessive wear or material degradation.

Understanding the engine's limitations, like the maximum ITT, is crucial for pilots to ensure safe operation. This limit reflects the design and engineering of the T-6A's engine, balancing performance with reliability. Operating within these temperature limits helps ensure that the engine provides the necessary thrust while maintaining safety margins established by the manufacturer.

The other temperatures listed exceed the established maximums for takeoff and could lead to operational risks and engine performance issues. This reinforces the importance of adhering strictly to these operational limits during flight.