Lynnmor wrote:
I think you will find that it is not a true pendulum, in that there is spring pressure applied whenever the trailer is off the center line. This causes a self centering effect and the "pendulum" energy is dissipated with that spring compression....
When a trailer on a simple ball starts to sway, there is pressure (from the pull of the ball and the sideways friction of the tires) to swing back toward a straight line. But that pressure causes the TT to overshoot to the opposite direction. The compression of the springs works on the chains to give an even greater push. It seems like this greater push could enhance sway rather than dampen it.
The push in either scenario (on ball or with SwayPro) is weak if the TT is off by a small angle, and it grow stronger in either scenario as the angle increases. When the TT shoots back toward straight, what in either scenario is operating to slow the TT so it does not overshoot to the other side? Is a big pushback somehow going to stop the pendulum better than a small pushback? If we push an object harder, it should go farther... the opposite of what is desired in towing.
