23 curved and straight sections 24 and 25 in practice the combination of which curved and straight sections 24 and 25 promotes a non turbulent separation of the combined wind flow off of the blade trailing edge which wind air flow exhaust because of the trailing edge 23 configuration is smooth and does not create turbulence as it travels off of the blade trailing edge 23 and this non turbulent wind air flow off the blade 11 at trailing edge separation promotes an efficient translation of the wind flow energy into blade turning with minimum wind energy losses along with the shape of the blade 11 the trailing edge 23 as discussed above to maximize wind flow energy conversion into blade 11 turning the bent blade 11 is curved in a uniform arc of from seventy to seventy eight degrees from its leading to trailing edges 19 and 23 respectively this smooth curved surface maximizes wind energy conversion to blade turning and provides for a non turbulent wind air flow travel over the blade from leading to trailing edges as set out above this preferred uniform arc is formed in the bending of blade 11 from its mounting at blade arc section 15 end connection at holes 15.