Where is the Interstage Turbine Temperature (ITT) measured?

The Interstage Turbine Temperature (ITT) is measured between the compressor and power turbines. This measurement is crucial as it provides engineers and pilots with data about the thermal conditions inside the engine, ensuring it operates within safe limits during various phases of flight.

The ITT is particularly important because it reflects the temperature of the gases as they exit the combustion chamber and enter the turbine section of the engine. Monitoring this temperature allows for the assessment of engine performance and efficiency, enabling corrective actions to be taken if necessary.

Measuring ITT at this specific point helps in understanding the overall health of the engine and is vital for adherence to operational limitations, especially in Part 135 operations where safety and performance are paramount. This knowledge assists in avoiding engine damage and ensuring safety during flights.