... blade,tail system,Controller and Tower kits. Blue-Sky 1000W Wind Turbine system includes Turbine Head,yaw body,blade ... kits. Turbine Head and Yaw body is all Aluminum,light weitht and good heat dissipation,with stainless steel hardware ... computer system,blade still move in low wind speed,light weight 2.2KG 3pieces but same hard as steel, ... is not expensive and it is very fast 1000W Wind Turbine Generator