Wind Turbine Blades

This is the blade of a small Vertical Axis Wind Turbine.

It is designed to be stacked in sets of 2+.

It is a helical Darrieus constant torque design. It is not self starting. The airfoil is a NACA 0015 with zero angle of attack.

Still needs a stand and end cap.

There is a high and low polygon model if you are in to that sort of thing.