What is the transient ITT range in degrees Celsius, allowed for a maximum of twenty seconds?

The transient ITT (Interstage Turbine Temperature) range for the T-6A is critical for engine performance and to ensure safe operation during transient conditions such as sudden power changes. The correct range for a transient ITT that can be sustained for a maximum of twenty seconds is from 820 to 870 degrees Celsius. This range is specifically defined in the aircraft's operating limits to allow engine operators to respond to specific flight conditions, such as takeoff or climb, where brief temperature spikes may occur without causing damage to the engine. Understanding this transient limit is essential for pilots to ensure they operate within the protective limits designed to maintain engine integrity and reliability.