What is one characteristic of a flat plate keel?

A flat plate keel is designed to be perpendicular to the centerline of the hull, providing a broad, stable surface that enhances the vessel's lateral stability. This orientation minimizes the potential for rolling and contributes to the vessel’s overall balance and performance in the water.

This characteristic is crucial for various types of boats, especially those that need a solid foundation for maneuverability and stability. By being perpendicular, the flat plate keel effectively increases the resistance against lateral forces, allowing for improved control and safety while operating.

The other characteristics listed do not accurately describe a flat plate keel's primary function or design. For instance, an angled keel might be found on different hull types intended for specific hydrodynamic advantages, while flexibility under pressure is not a property of a flat plate keel; such a structure generally is rigid and designed to provide stability rather than flexibility. Lastly, a keel's purpose is functional, supporting the boat's structural integrity and performance rather than serving as a decorative feature.