You can see technicial drawing of blade here --> 

Very quiet due to the curvature of the tips in the opposite wind direction, robust and high speed replacement repeller blades for the small wind power wind generators.

Made of fiberglass, the rotor blades are very durable and stable, yet at the same time unusually light for low starting torque. A set of 3 wings.

Nose for 3 blade for 500w wind turbines.

Flange for 3 blade for 500w wind turbines blades.

Screw Set