Flexible Wind Turbine Apparatus

A wind turbine apparatus comprising:

• a central shaft mounted on a base;
• at least one support arm connected to the central shaft, wherein the at least one support arm includes an outer end distal to the central shaft;
• and
• an airfoil comprising:
• an airfoil body having an arcuate shape extending between a first end and a second end, the airfoil body including a first portion adjacent to the first end and a second portion adjacent to the second end, wherein the first end and the second end are secured to the support arm, wherein the body of the airfoil is comprised of material capable of flexing in response to wind pressure;
• and
• an airfoil support secured to a midpoint on the airfoil body, and is connected to the outer end of the support arm;
• wherein the airfoil moves between an expanded position and a collapsed position;
• wherein the first and second portions of the airfoil body extend away from each other in the extended position and collapse together in the collapsed position;
• and
• wherein the orientation of the airfoil relative to the direction of the wind causes the airfoil to move between the open and closed positions.

A wind turbine apparatus comprising:

• a shaft mounted on a base;
• a disc support structure including an aperture that receives the shaft;
• a plurality of support arms extending perpendicularly from the shaft;
• and
• a plurality of airfoils, each airfoil secured to one of the plurality of support arms.