to maintain the wind turbine assembly in its upright attitude and facing the oncoming atmospheric wind the connection of the anchor line 57 to the axle structure is at the upper end portion of the tower assembly 32 opposes and resists the longitudinal forces applied by the oncoming wind forces that are being applied to the wind turbine wheel 22 thus the force applied by the anchor line resists the tipping of the tower 32 and allows the tower structure to be less strong less expensive and lighter than would be required without the anchor 59 and anchor line 57 fig6 shows a modified form of the turbine wheel turbine wheel 64 includes an outer rim 66 and an intermediate rim 68 both rims being circular and concentric with the axis of rotation of the turbine wheel a plurality of inner sail wings 70 extends between the axle structure and the intermediate rim 68 and a plurality of outer sail wings 72 extends between the intermediate circular rim 68 and the outer circular rim 66 the pitch of the outer sail wings 72 typically will be different from the pitch of the inner sail wings 70 since the circular velocity of the outer sail wings is greater than the circular velocity of the inner sail wings also the use of the intermediate circular rim 68 stabilizes the inner and outer sail wings so that the total length.