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Vertical-axis Wind Turbine with Rotable Sail Blades - Sail-blade Frontal View

Turbină eoliană cu ax verical cu palete de tip velă rotitoare - Vedere în plan orizontal a unui subansamblu cu palete tip velă

The wind turbine uses a dedicated set of sail blades coupled to the rotatable shaft. Part of the patent - Vertical-axis Wind Turbine with Rotable Sail Blades.