The smart fan system functions automatically to provide Total Airflow Control (TAC). Flexxaire TACfans and TACcontrols offer infinitely variable pitch. Fan blades move between 0° and 40° based on inputs from a control system that is continuously monitoring engine fluid temperatures.
Regulate engine fluid temperatures within a narrow range while ensuring the cooling package never draws more power than ambient conditions dictate.
Reduce parasitic losses (the fan is the largest contributor to parasitic loss).
Eliminate power surges found with clutches and other reversing fans.