What mode is a planing hull in when it glides at high speeds?

A planing hull operates in planing mode when it glides at high speeds. In this mode, the hull rises up and skims along the surface of the water, minimizing resistance and allowing the boat to achieve greater speeds. This is made possible by the design of planing hulls, which are shaped to lift out of the water as they accelerate.

In contrast, displacement mode refers to a hull's ability to push through the water, where the boat moves along the water surface at lower speeds without rising up. Plowing mode describes a situation where the bow of the boat is pushed down into the water, often associated with slower speeds and can create more drag. Stability mode generally refers to the boat's ability to remain balanced and upright in the water, which is different from its speed or performance characteristics. Thus, planing mode is specifically tied to the efficient and fast movement of a planing hull over the water's surface.