- Airfoil shaped blades >> 3 different airfoil shaped blades
- 15º blades (arc) >> 20º blades (arc)
- Short blades
- 3 blades attached >> 6 blades attached
- Curved blades
- Light weight (thin thickness)
- Same length, weight an sized blades (balanced blades)
- Quiet turbine so that people can live around it
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