What is the prohibited RPM range for the engine?

The prohibited RPM range for the engine on the Pilatus PC-12 NG is established to ensure safe operation and to prevent potential damage to the engine. When the engine operates within this specific range of 350 to 950 RPM, it can lead to excessive vibrations, overheating, or undue stress on engine components. Operating outside of the recommended RPM ranges helps to maintain the integrity of the engine's mechanical systems, ensuring reliable performance and longevity.

This RPM range is critical for pilots to be aware of during both normal and emergency operations, as exceeding this threshold could compromise engine function. Therefore, understanding and adhering to the RPM limits is key to safe flight operations.