6.8 Ft Diameter. High Efficient Wind Generator Blades w/ HUB, 3 Rotors

• Power – Applicable for 200-300 watt generators
• Start-up Wind Speed – 6.7 mph or 3m/s
• Nominal Wind Speed – 17.9mph or 8m/s
• TSR – 6:1 at heavy load, 8:1 at light load, and 10:1 without load
• Diameter – 81.5 Inches

Product Description
Designed and made to pick up the wind power as much as possible. The efficiency is graded as 0.48 in converting wind power to the mechanical power, which is at the very top end (the highest is 0.5). The exact same blades are widely used in commercial wind generators. The performance of the blades is much better than home brewed ones…. More >>

6.8 Ft Diameter. High Efficient Wind Generator Blades w/ HUB, 3 Rotors