What is the maximum ITT at idle?

The maximum Interstage Turbine Temperature (ITT) at idle is indeed 750 degrees Celsius. This specification is crucial for ensuring the engine operates within safe thermal limits, preventing damage associated with overheating. The idle ITT limit is established to protect the integrity of the engine components and maintain optimal performance.

When the engine is at idle, it is expected that the ITT remains below this threshold to ensure that the components do not experience undue thermal stress, which can lead to accelerated wear or failure. Maintaining the ITT within specified limits is vital for preventing damage and prolonging the engine’s operational lifespan.

The other temperature values presented reflect higher operating conditions that are typically associated with different phases of engine operation, such as transient, takeoff, or maximum continuous operations, where tolerances for ITT are adjusted accordingly to accommodate increased power demands. These limits are not relevant during the idle phase, emphasizing that operating within the 750-degree limit is imperative during idle to safeguard the engine.