5 Blades + Hub for Mini Wind Turbine. 18in Swept Diameter (Discontinued)

This is a nice, premium product, . Tested in a real engineering wind tunnel, Cutting Edge Power's thick UV resistant 5 blades and hub are designed for any generator with a 1/8 shaft. The hub is press fit and locks to the shaft with 5 stainless steel set screws included. Compatible with Cutting Edge Power Mini Wind Turbine. Specifications: 18 swept diameterSpecially designed brass threads are pre-assembled and heat set into the blades to eliminate vibration. includedBlack stainless steel machine screws provide a long-lasting outdoor finish. included These are not zinc or carbon steel screws, they are stainless.Aerodynamic grooves on the blades create a thin turbulent boundary layer on the surface, which allows the blade to flow smoothly through the wind, similar to golf ball dimples.