A retractable-airfoil vessel has surface-effect wings (1) that are hinged
or otherwise attached extendedly to a vessel (3). The surface-effect wings
are extendable to a use mode in proximity to a surface of water (5) at sides
(2) of the vessel for surface-effect lift of the vessel at elevated speeds.
At low speeds when pleasure cruising or fishing, when stopped for water activities
or when adjusting to rough waters and storm conditions, the surface-effect wings
can provide wide-area buoyance on water at sides of a center of gravity of the
vessel. The best of all worlds, it can be made to ride-out a storm as safely and
securely as an anchored buoy and yet have high-speed efficiency, low-speed pleasure
cruising and stopping for swimming and marine exploration. Then for docking in
vessel slips and for maneuvering in close proximity to docks and harbor structures,
the surface-effect wings can be retracted onto the vessel in a non-use mode for
non-interference storage and for docked-living shelter.