What is the maximum engine ITT during a ground start?

The maximum engine ITT (Interstage Turbine Temperature) during a ground start for the Dassault Falcon 7X is 950°C. This temperature limit is critical during the starting phase of the engine to ensure it operates within safe parameters and to prevent potential damage. Engine manufacturers set these limits based on extensive testing and operational experience to safeguard the engine components from thermal stress.

When the engine is started on the ground, various factors such as ambient temperature, engine condition, and configuration can affect the ITT. Therefore, adhering to the specified ITT limits is essential for maintaining engine health and reliability. The specification of 950°C as the maximum threshold is in line with operational best practices and the technical design of the engine, ensuring safety and performance standards are met.

In contrast, the other temperature options are not set as maximums for ground starts. The limits below or above 950°C would either not provide sufficient safety margins or reflect non-standard operational practices.