A multihull multiplatform floating vessel with a plurality of longitudinal hulls, a plurality of pin connectors; each pin connector providing one axis motion, a plurality of joints, each joint providing two axis motion, wherein the first joint is mounted on one hull the second joint is mounted on a second hull and wherein one group of pin connectors is mounted on one hull and a second group of pin connectors is mounted on the second hull. A first moveable planar platform is connected to the hulls and a second moveable planar platform is connected to the hulls by the pin connectors and joints, the platforms spaced apart from each other forming a platform void between pairs of platforms, and a hull void between pairs of hulls increasing safety onboard and decreasing motion of the moveable planar platforms as mounted to the longitudinal hulls.

A multihull multiplatform floating vessel with a plurality of longitudinal hulls, a plurality of pin connectors; each pin connector providing one axis motion, a plurality of joints, each joint providing two axis motion, wherein the first joint is mounted on one hull the second joint is mounted on a second hull and wherein one group of pin connectors is mounted on one hull and a second group of pin connectors is mounted on the second hull. A first moveable planar platform is connected to the hulls and a second moveable planar platform is connected to the hulls by the pin connectors and joints, the platforms spaced apart from each other forming a platform void between pairs of platforms, and a hull void between pairs of hulls increasing safety onboard and decreasing motion of the moveable planar platforms as mounted to the longitudinal hulls.

A pontoon boat includes first and second pontoons on the port and starboard sides of the boat and a main deck attached to the top of the pontoons. A front wave deflector extends forwards and upwards from the front of the main deck at an angle. The front wave deflector is held above the water and does not contact the water while the pontoon boat is floating in or moving through calm water. The front wave deflector contacts the tops of waves when the pontoon boat is navigating rough water and pushes the water beneath the pontoon boat deck. This allows the pontoon boat to navigate rough water without loss of momentum and without excessive up and down pitching.

A pontoon boat includes first and second pontoons on the port and starboard sides of the boat and a main deck attached to the top of the pontoons. A front wave deflector extends forwards and upwards from the front of the main deck at an angle. The front wave deflector is held above the water and does not contact the water while the pontoon boat is floating in or moving through calm water. The front wave deflector contacts the tops of waves when the pontoon boat is navigating rough water and pushes the water beneath the pontoon boat deck. This allows the pontoon boat to navigate rough water without loss of momentum and without excessive up and down pitching.

A method and a system for ship stability prediction by weighted fusion of RBFNN and random forest based on GD are provided. Firstly, input characteristics when predicting failure probabilities under different failure modes are determined through prior knowledge. Secondly, a mean square error of k-fold cross-validation is used as performance evaluation criterion of the RBFNN and the RF to search for model capacities of the RBFNN and the RF. Then, network parameters of the RBFNN are updated. Multiple random sample sets are generated using a bootstrap sampling method and are parallelly trained to generate multiple regression trees. A Gini index is used as an attribute division index, and a prediction result of the random forest is obtained. Finally, weight coefficients are introduced for weighted fusion of prediction results of the RBFNN and the RF. The weight coefficient is obtained by solving through iterative optimization of the gradient descent.

Fatalities from hypothermia and exposure are increasing each year due to the vast popularity of paddle sports such as: kayaking, canoeing, paddleboarding, etc. A lightweight inflatable self-rescue raft stored aboard with the present invention attached to the underside, can greatly reduce such fatalities.

The sponge-ballast system is a stabilization system that aids a person in the water to make a quick self-rescue boarding of any lightweight inflatable raft of any size or shape avoiding fatigue and hypothermia.

The system comprised of highly compressed sponge contained in permeable enclosures, which enclosures in turn are secured to the underside of an inflatable raft, which the compressed sponge, upon contact with water, rapidly absorbs water through the openings and quickly expands providing prompt, sufficient weight and ballast for a wet person to climb aboard a raft as light as 5 pounds. The present invention used 20 compressed sponges to achieve such results.

A canoe outrigger with built-in, covered, storage capacity. Unlike a typical pontoon type outrigger, this device is a miniature canoe form that has an open interior. The top of the outrigger has three doors allowing for storage and access within the form that holds many supplies, such as camping and fishing gear, food, water and other items. The outrigger is connected to a canoe, or other small boat, by a pair of telescoping arms. Each arm has clamps that secure the arms the gunwales of the vessel. The other end of each arm is bolted into position on the outrigger. In this way, the outrigger is securely attached for use.

A canoe outrigger with built-in, covered, storage capacity. Unlike a typical pontoon type outrigger, this device is a miniature canoe form that has an open interior. The top of the outrigger has three doors allowing for storage and access within the form that holds many supplies, such as camping and fishing gear, food, water and other items. The outrigger is connected to a canoe, or other small boat, by a pair of telescoping arms. Each arm has clamps that secure the arms the gunwales of the vessel. The other end of each arm is bolted into position on the outrigger. In this way, the outrigger is securely attached for use.

A watercraft with a rigid outer hull having a substantially circular shape in plan view and a rounded bottom surface for contacting a body of liquid, and a rigid top surface disposed opposite said bottom surface and integrally formed with the outer hull, the top surface having an annular stability portion with convex walls in cross-section and a recessed flat-bottomed deck portion adapted to receive a person, and an edge of the recessed deck portion being disposed inwardly from an outermost edge of the top portion by a distance, and a method for using same.

A watercraft with a rigid outer hull having a substantially circular shape in plan view and a rounded bottom surface for contacting a body of liquid, and a rigid top surface disposed opposite said bottom surface and integrally formed with the outer hull, the top surface having an annular stability portion with convex walls in cross-section and a recessed flat-bottomed deck portion adapted to receive a person, and an edge of the recessed deck portion being disposed inwardly from an outermost edge of the top portion by a distance, and a method for using same.