The present disclosure relates to a rolling reduction boat, and more particularly, to a rolling reduction boat having a structure that allows a rolling reduction tube, which is formed to surround a boat main body, to be filled with water. The present disclosure has the following advantageous effects. That is, according to the present disclosure, by filling a rolling reduction tube, which surrounds a boat main body, with water, there are advantages that the overall weight of the boat is increased, and the center of mass is moved downward and distributed, thus making it easy to get on the boat even in water, and the degree to which the boat tilts or rolls due to external factors such as a strong wind, a wave, and a change in the position of a passenger is reduced and a restoring force of the boat is increased, thus making it possible to more safely sail the boat.

The present disclosure relates to a rolling reduction boat, and more particularly, to a rolling reduction boat having a structure that allows a rolling reduction tube, which is formed to surround a boat main body, to be filled with water. The present disclosure has the following advantageous effects. That is, according to the present disclosure, by filling a rolling reduction tube, which surrounds a boat main body, with water, there are advantages that the overall weight of the boat is increased, and the center of mass is moved downward and distributed, thus making it easy to get on the boat even in water, and the degree to which the boat tilts or rolls due to external factors such as a strong wind, a wave, and a change in the position of a passenger is reduced and a restoring force of the boat is increased, thus making it possible to more safely sail the boat.

A sailboat is described having a boat hull (1), two flow profiles (2, 3) protruding laterally from the boat hull (1), and at least one underwater hydrofoil (16). To be able to achieve high travel velocities while maintaining the stability of the sailboat and balanced control behavior, it is proposed that the flow profiles (2, 3) protrude outward in a V shape from the boat hull and each have an aerodynamic stabilizer forming an aerodynamic aileron (4, 5), and/or the at least one underwater hydrofoil (16) is provided with a hydrodynamic stabilizer forming a hydrodynamic aileron.

A sailboat is described having a boat hull (1), two flow profiles (2, 3) protruding laterally from the boat hull (1), and at least one underwater hydrofoil (16). To be able to achieve high travel velocities while maintaining the stability of the sailboat and balanced control behavior, it is proposed that the flow profiles (2, 3) protrude outward in a V shape from the boat hull and each have an aerodynamic stabilizer forming an aerodynamic aileron (4, 5), and/or the at least one underwater hydrofoil (16) is provided with a hydrodynamic stabilizer forming a hydrodynamic aileron.

A boat comprises a deck supported by one or more deck floats, and a paddle wheel cockpit comprising a seat proximal to a pedal-driven paddle wheel adapted to engage water and propel the boat; wherein the deck and the paddle wheel cockpit are joined by at least one cockpit hinge that allows the paddle wheel cockpit to fold over the deck, in some embodiments.

Wakeboat ballast compartment fluid level sensing assemblies are provided that can include: a wakeboat having a hull; a ballast compartment associated with the hull; a nonconductive sensor chamber in fluidic communication with the ballast compartment; and at least one conductive electrode associated with the sensor chamber. Methods for sensing a fluid level within a ballast compartment aboard a wakeboat are also provided. The methods can include maintaining fluid communication between the ballast compartment and a sensor chamber; and determining the electrical communication of electrodes operatively associated with the sensor chamber.

An offshore wind turbine system is provided including a wind turbine in combination with a floating platform. The platform includes three buoyancy modules in corners of a triangular configuration. The tower is located off-centered near a baseline of the triangle midway between two buoyancy modules that are located at the ends of the baseline.

An offshore wind turbine system is provided including a wind turbine in combination with a floating platform. The platform includes three buoyancy modules in corners of a triangular configuration. The tower is located off-centered near a baseline of the triangle midway between two buoyancy modules that are located at the ends of the baseline.

Various embodiments of a submerged submersible sailing vessel are disclosed. Such a submerged sailing vessel may comprise a submersible hull assembly, a keel coupled to and extending upwards from hull assembly towards a water surface, and a wind-catching assembly coupled to and extending upwards into the air from the keel for propelling the submerged sailing vessel. The hull assembly and the keel are submerged below the water surface as the vessel is propelled by the wind-catching assembly above the water surface.

Various embodiments of a submerged submersible sailing vessel are disclosed. Such a submerged sailing vessel may comprise a submersible hull assembly, a keel coupled to and extending upwards from hull assembly towards a water surface, and a wind-catching assembly coupled to and extending upwards into the air from the keel for propelling the submerged sailing vessel. The hull assembly and the keel are submerged below the water surface as the vessel is propelled by the wind-catching assembly above the water surface.