The terra hydroplaning describes a condition occurring in certain circumstances of pneumatic tire operation on wet roads, when the load carried by the tire becomes entirely supported upon a water layer retained within the region of ground contact. The paper discusses the phenomena which are primarily responsible for hydroplaning and includes results from studies of the effects due to individual tire parameter such as tread pattern design, tread material, and the construction and sectional shape of the casing.
It is shown that the most important of these tire factors is the geometric design of the tread pattern. Some results relating to the effect of wear of the tread pattern are discussed.
