Wind and Water Turbine Design: The Horizontal axis logarithic spiral fluid turbine

Because of its aerodynamic profile, the golden spiral turbine is self orienting when tethered or attached to a horizontal pivot point. The shape of the blades and the smaller radius minimize drag while still collecting the kinetic energy efficiently. It is relatively safe for fish. Because of its small radius it can be constructed from cheap recycled plastic, PVC, or similar. It is a design that works for both wind and water. It is very simple comparing to the turbines out there in terms of cost, manufacturing, number of part, and maintenance.