The Round bottom hull move easily through the water, especially at low speeds. They do, however, tend to roll unless they are outfitted with a deep keel or stabilizers.
The round bottom hull design has a number of advantages, including improved hydrodynamics, reduced frictional drag, and increased speed and maneuverability in the water. However, it also has some drawbacks, such as reduced stability in rough seas and a tendency to roll in strong winds.
Many trawlers, canoes and sailboats have round bottoms.
