Hello, I would like to implement negative pitch control on a down-wind, wind turbine generator, typically positive pitch control is used to control power output. I understand that some rotorcraft may use negative pitch control methods. My questions is mainly regarding concern for stall hysterisis, torque and thrust loads. This would not be viable at all if the blades charachteristics become absolutely unpredictable. Could someone with a knoweledgable opinion comment?

Thank you, Jason