Rotating Hydrofoil Mast Layout for Shallow-Water Docking

The patent applies the dynamics principle by making the hydrofoil system rotatable relative to the hull. The foil can rotate between a horizontal position (providing maximum lift capability for low-speed operation) and a vertical or intermediate position (reducing width to fit within the hull beam for docking). This dynamic reconfiguration allows the same foil structure to satisfy both contradictory requirements under different operational conditions.

The rotatable hydrofoil system enables dynamic adjustment of the underwater appendage configuration. During high-speed transit, the foils are positioned horizontally to maximize propulsion efficiency. When approaching shallow areas, marinas, or restricted waters, the system rotates the foils to a vertical or retracted position, minimizing exposure and snagging risk while maintaining the ability to generate lift when needed.

The patent resolves this contradiction through dynamic reconfiguration of the hydrofoil system. The rotatable foils can be positioned at different angles and orientations depending on operational needs. For shallow-water maneuvering, the system reduces draft by rotating foils to minimize water depth requirements. When sustained lift generation is needed, the foils are rotated to optimal hydrodynamic angles, ensuring both shallow-water capability and adequate lift production are achieved through the same adaptable structure.