Modular vertical wind turbine blade in NACA9625

This is a stackable wind turbine blade. It can be printed and stacked on a 16mm and 10mm aluminium rod. The parts can be glued or screwed to make them rigid.

The end plug is designed to give a 9 degree pitch into the wind.

I plan to make a three blade unit 500mm tall, with 250mm radius, and mount it on a magnetically levitating bearing, then test it for startup.