To: heedm
What you say may be true but you have taken a snapshot in time. The helicopter does not just roll in one direction. As the trough of the wave passes the helicopter will roll in the opposite direction and if the helicopter is at an angle to the trough the helicopter will also pitch as well as roll. Once it rolls and pitches in one direction it will move in the opposite direction. This constant fuselage displacement will cause the rotor system to constantly change in relation to the fuselage. This is not stability.