Flex-Blade Fan: Description

This unit is a fixed blade assembly designed to flex the blades as the engine RPM increases. As RPM increases, blade pitch decreases, saving power and decreasing noise level. No adjustment or test is required beyond keeping fan belt adjusted to proper tension and ensuring that unit is not damaged.

Fig 1: Flex-Blade Fan

Courtesy of NOT AVAILABLE

Blades should flex as engine RPM increases.