What is the range for maximum ITT during a restart attempt?

The maximum Interturbine Temperature (ITT) during a restart attempt is typically set within the range of 871 to 1,000 degrees Celsius. This range is critical for ensuring that the engine can restart safely without exceeding temperature limitations that could lead to engine damage. During a restart, the engine goes through various thermal stresses, and monitoring ITT is vital in preventing excessive heat exposure that could compromise engine integrity.

The specific range of 871 to 1,000 degrees is established based on manufacturer specifications and is crucial for maintaining not only performance but also the longevity of the engine components during the restart process. This reflects the operational limits that are designed to avoid thermal shock or degradation of materials, which is particularly important when engines are operating under varying conditions in flight scenarios.

Understanding these limits is essential for pilots and technicians to ensure compliance with safety procedures and to retain full operational capacity of the aircraft's propulsion system.