TIRE-GROUND forces during cornering have been studied with the aid of an experimental device, and tire tread buffing patterns are correlated with tire position and use.
Tire characteristic curves are introduced and are shown to be helpful in interpreting the interrelations between cornering force, aligning torque, slip angle, and caster. An example is given of the use of characteristic curves to study an application of power steering.
A photo of a standing wave on a tire running at 100 mph is included as a matter of general interest.