Through analyzing on the reason of large tilt Angle face roadway destruction, corresponding efficient support measures are provided, and good technology economic results are made.

But if that ground is, indeed, sloping, it means that the wind (which tends to follow the ground when it is close to the surface) hits the blades of the turbines at an Angle instead of face on.

For instance, an a-line Bob is styled in an Angle that frames the face.