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.
- 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.