What is the maximum allowable engine temperature during takeoff?

The maximum allowable engine temperature during takeoff for the King Air 350 is set at 900°C for up to 5 minutes. This limitation is based on the engine's design specifications and operational safety standards, ensuring that the engine can perform efficiently while avoiding excessive thermal stress that can lead to engine damage. Operating within this temperature range allows the pilot to maximize performance during the critical phase of takeoff while maintaining the engine's integrity. Exceeding this temperature limit can result in overheating and potential failure of engine components, particularly critical elements such as turbine blades and combustion chambers. Thus, adhering to the 900°C threshold ensures both performance and safety during takeoff.