Translations:Configuration/111/en
From Spirit System Manual
In order to find out which part of the model is causing the unwanted vibrations, move cursor to the peak and check the head speed (RPM). The speed of the main rotor is usually in the range of 1500 to 3500 RPM. Therefore, if the speed is within this range, it is likely that there is a problem with the main gear, main shaft, main shaft bearings or rotor head itself.
