not shown combining vs with a tangential velocity component vt gives a relative wind vector 36 at an angle u03c6 relative to the rotation plane 38 of the rotor the angle of attack aoa is the angle between the relative wind vector 36 and the chord line ch the absolute pitch angle u03b8 is the angle between the chord line ch and the rotation plane 38 positive pitch and positive angle of attack are clockwise in this view so increasing pitch by rotation of the leading edge le toward the suction side 22 increases the angle of attack aoa the lift vector l is perpendicular to the relative inflow vector 36 the drag vector d is directed aft parallel to the relative wind vector 36 the resultant load vector r of lift and drag is shown an inboard lift regulator may be embodied as a suction side spoiler 40 that causes flow separation 41 when deployed the spoiler may be a hinged plate as shown and may be actuated by known means such as hydraulics or electric motors flow separation reduces 41 lift fig5 shows a system with a control logic unit 44 and exemplary inputs of wind speed 45 blade pitch 46 and rotor speed 47 which may be used to analyze wind conditions and compare them to one or more limits that determine when to activate a lift regulator for example the lift regulator may be activated when the wind reaches or exceeds a predetermined condition such as a combination of wind speed and variability wind variability may be derived for example from instantaneous changes in wind speed or by derived metrics such as statistical variance or higher order wind speed derivatives alternately secondary indicators.