Patent ID: 7362004

Claim:
A method of achieving maximized wind harvesting for generating electrical power, comprising the steps of: providing a rotatably supported helically twisted blade with a plurality of flexible elongated vane segments, wherein each vane segment has a fixed edge and a free edge, and the free edge of one segment one of at least partially overlaps and substantially abuts the fixed edge of the next adjacent vane segment; and creating separation air slots between the elongated vane segments by allowing the free edge of at least one vane segment to rise up from the fixed edge of the next adjacent vane segment during rotation of the rotatably supported helically twisted blade, wherein during rotational operation, the separation distance between the radially-outermost mounted vane segments is greater than the separation distance between the radially-innermost mounted vane segments; and wherein, when operating at high rotational speeds, the respective separation air slots created between vane segments of the helically twisted blade operate as an air brake to help prevent runaway rotational conditions.