Motorhome sway
My 40 Foot Class A after a long sweeping right turn and an immediate left turn at 20 mph almost rolled over. I've made many left turns at a greater speed without that reaction.
Forum Discussion
jackgilliat wrote:
Most buses and motor homes have side to side rear height control valves and one front center height control valve ( tripod air suspension). The left rear air bag pumps to a maximum of 135 pounds in a sweeping right turn while air transfers through a one millimeter opening from the left front air bag to the right front air bag. An immediate left turn allows the motor home to shift its weight onto an empty right rear air bag. The dangerous situation is further increased by acceleration and the fact that the right front air bag greatly increases the height of the center of gravity.
These facts have been confirmed by a study of :-
Highway and Urban Air Suspension Accidents
1. Exiting long sweeping curves.
2. Negotiating the second curve of close alternate turn.
3. Negotiating a curve either during or immediately port torque application.
"MOST buses and motorhomes..."
There is that over-worked word again!
Mine doesn't have air suspension, I guess it isn't part of that "most".
Given the responses to the posts that have been made, and the lack of information about the coach in question, I have nothing more to add to this thread.
