The present invention relates to a winged boat comprising a main body including a passenger space and a closed space at an edge, buoyant wing parts protruding from both sides of the main body, disposed in a front and a rear area of the main body, and each including a wing body protruded from a side of the main body; a buoyant space formed inside the wing body in a closed state; a water storage part disposed in an opposite direction to the main body with respect to the buoyant space and having an opening and closing part at a lower portion and an inlet formed at an upper portion, and a buoyancy control part provided in an opposite direction to the buoyant space with respect to the water storage part and adjusting buoyancy of the wing body by controlling an amount of water stored therein.

A flat-bottom fluvial transport boat comprising inflatable buoyancy tanks consisting of at least one pair of port side and starboard inflatable volumes. The paired inflatable volumes are connected to each other by means of one or more pressure balancing means.

A flat-bottom fluvial transport boat comprising inflatable buoyancy tanks consisting of at least one pair of port side and starboard inflatable volumes. The paired inflatable volumes are connected to each other by means of one or more pressure balancing means.

A damping system is presented for damping an oscillation of a load on a fluctuant water surface. The damping system may include four buoyancy systems, two on each side of the load. Each buoyancy system may include two buoys, a lower frame and an upper frame.

A transportation device for an offshore platform, including a vessel and a floating structure which are fixedly connected. The floating structure is placed on a sea surface and is configured to assist the vessel to sail. The floating structure is provided with an adjustment mechanism which is configured to adjust the floating structure to rise and fall relative to the sea surface. A rail is arranged on the vessel and is in sliding connection with the topside module, so that the topside module slides onto the vessel from land. During the transportation of the topside module, the buoyancy of the floating structure is adjusted through the adjustment mechanism, so that the floating structure provides sufficient anti-rolling moments beside the vessel, thereby reducing the vibration of the topside module caused by the winds and waves during the sailing and reducing the potential damage to the topside module.

The present invention provides a novel floating and renewable energy-powered desalination vessel, which also functions as a wind turbine generator and wave energy generator platform. With energy derived from the wind and waves, the vessel performs reverse osmosis within a vertically positioned cylindrical section extending below a buoyancy chamber. The cylindrical section contains reverse osmosis membranes located above a seawater screening and filtration system, which serve as ballast. The entire vessel and power systems are configured to have the center of mass below the center of buoyancy, forming a vertically stable floating structure with minimum pitch, roll, and wave heave in high sea states. The electric power generated is utilized internally to produce desalinated water or hydrogen from the desalinated water's electrolysis, power an onboard data center, or power delivery to a shoreside power grid. In addition to a wind turbine generator and a wave energy generator, a photovoltaic array or a marine current generator may be utilized to power these applications. Alternatively, the desalination vessel operates with the assistance of shore-based power provided by cable.

An extraction vessel is provided that includes two pontoons forming parallel hulls, a cargo hold located between the pontoons, and a retractable extraction conveyor belt located between the pontoons and mounted on tracks so as to be movable between retracted and deployed positions. In the retracted position, a lower end of the conveyor belt is above the waterline of the vessel. In the deployed position, the lower end of the conveyor belt is below the waterline for extracting the floating debris, and an upper end of the conveyer belt is above the cargo hold to discharge the floating debris into the cargo hold. Also provided is an extraction vessel that includes variable buoyancy floats attached to the pontoons and movable between a raised position in which the lowest surface of the float is above the waterline, and a lowered position in which part of the float is submerged.

An extraction vessel is provided that includes two pontoons forming parallel hulls, a cargo hold located between the pontoons, and a retractable extraction conveyor belt located between the pontoons and mounted on tracks so as to be movable between retracted and deployed positions. In the retracted position, a lower end of the conveyor belt is above the waterline of the vessel. In the deployed position, the lower end of the conveyor belt is below the waterline for extracting the floating debris, and an upper end of the conveyer belt is above the cargo hold to discharge the floating debris into the cargo hold. Also provided is an extraction vessel that includes variable buoyancy floats attached to the pontoons and movable between a raised position in which the lowest surface of the float is above the waterline, and a lowered position in which part of the float is submerged.

A sponson attachment for an airboat allows the airboat to increase its safety and stability very quickly. A method for attaching a sponson to an airboat hull includes attaching first and second flexible tethers to a side of the sponson. The method also includes removably securing the first flexible tether to an exterior of the airboat hull adjacent a gunnel, and removably securing the second flexible tether below the first flexible tether on the exterior of the hull.

A sponson attachment for an airboat allows the airboat to increase its safety and stability very quickly. A method for attaching a sponson to an airboat hull includes attaching first and second flexible tethers to a side of the sponson. The method also includes removably securing the first flexible tether to an exterior of the airboat hull adjacent a gunnel, and removably securing the second flexible tether below the first flexible tether on the exterior of the hull.