Patent ID: 8226368

Claim:
A plurality of airfoils for a wind turbine blade, the wind turbine associated with a wind turbine hub, each airfoil comprising: a leading edge; a blunt trailing edge; a chord line extending from the leading edge to the blunt trailing edge; a substantially oval shaped suction side; and a substantially S-shaped pressure side, wherein the plurality of airfoils decrease in cross-sectional area along the turbine blade in a direction extending away from the wind turbine hub; wherein the substantially oval shaped suction sides comprise non-dimensional coordinate values of x/c and positive y/c within the ranges set forth in Tables 2, 4, 6, and 8, the x/c values representing locations on the chord lines in relation to the trailing edges and the positive y/c values representing distances from the chord lines to points on the suction sides; wherein the substantially S-shaped pressure sides comprise non-dimensional coordinate values of x/c and negative y/c within the ranges set forth in Tables 2, 4, 6, and 8, the x/c values representing locations on the chord lines in relation to the trailing edges and the negative y/c values representing distances from the chord lines to points on the pressure sides.