For how long can the transient maximum ITT of 870 degrees Celsius be sustained during specific operations?

The transient maximum ITT (Interstage Turbine Temperature) of 870 degrees Celsius can be sustained for a duration of 20 seconds during specific operations such as takeoff or go-around phases. This limitation is crucial for ensuring the engine's safety and longevity, as exceeding temperature limits can cause significant thermal stress and potentially lead to engine damage.

Understanding that this temperature limit is only applicable for transient conditions and not for continuous operation is essential. The 20-second duration is specifically defined in the operating limitations to provide guidance to pilots on the maximum allowable ITT during critical phases of flight while ensuring that the engine operates within safe parameters. This transient limit allows for necessary performance during high-demand situations without compromising long-term engine health.