Thread: center of gravity

Roll centres are based on suspension geometry and are different between the front and rear - it's different to the CofG.

Roll Center Height:

REAR Any rover running a A frame rear end, roll center height is the center of the ball in the ball joint.

FRONT Any rover running radius arms with panhard rod the roll center height is the height of the panhard rod (middle of the rod itself) at the intersection of the center of track width.

Vehicle Roll Axis angle: If a line is drawn from the front roll center height to the rear roll center height, this represents the vehicle roll axis angle.

These can be obtained with a simple tape measure.

What I do need for my Calculations is the COG.

Regarding the method discribed in the attached link, the reason they require the lift of 24 inches or greater on the front end, is to get enough of a differential in wheigts etc to create a more accurate outcome.

Serg