Patent ID: 7854595

Claim:
A blade for a wind turbine, comprising a chord of length “c” positioned with a leading edge tip chord angle and trailing edge tip chord angle of between approximately 45 and 75 degrees; a tip having a shear web plane radii distribution in the ranges of L/c (%) R/c (%) 0-10% 1.03-3.68% 30-40% 2.91-5.79% 60-70% 1.77-2.5% 90-100% 0.229-.350% wherein “L/c” is a range of an approximate normalized location along the chord length expressed as a percentage of the chord length from a leading edge of the blade; and wherein “R/c” is a range of an approximate normalized shear web plane tip radius, expressed as a percentage of the chord line length, for each normalized location L/c.