What is the maximum allowable ITT during T-6 engine start?

The maximum allowable Interstage Turbine Temperature (ITT) during a T-6 engine start is indeed 1,000°C. Understanding this limit is crucial for maintaining engine health and preventing damage during the critical phase of starting the engine.

During engine start, the ITT rises rapidly and reaching or exceeding the maximum allowable temperature can lead to thermal stresses and potential failure of engine components. This figure is specified in the T-6 operating limits to ensure that pilots operate the engine within safe parameters.

Limiting the ITT to 1,000°C helps ensure that the engine operates efficiently and reliably, contributing to the overall safety and longevity of the aircraft's powerplant. Exceeding this temperature can compromise engine integrity and reduce its service life, making it essential for pilots to monitor this parameter carefully.