5 Blades + Hub for Mini Wind Turbine. 18" Swept Diameter

This is a nice, premium product, Made in USA. 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 diameter
• Specially designed brass threads are pre-assembled and heat set into the blades to eliminate vibration. (included)
• Black 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.