What are planing hulls designed to do?

Planing hulls are specifically designed to ride on top of the water at higher speeds. This is achieved through their unique shape and configuration, which allows them to displace water effectively as they gain speed, creating lift that elevates the hull above the water's surface. This feature reduces drag and allows for increased efficiency at speed, making planing hulls ideal for fast-moving boats, such as speedboats and some types of recreational vessels. Consequently, they are well-suited for activities that demand quick acceleration and agility on the water. The other options, while they may describe different hull types or characteristics, do not accurately capture the primary purpose and function of planing hulls.