A pontoon boat including a thruster system is disclosed.

The invention relates to a watercraft, in particular a swimming and/or diving aid with a hull (10) having a stern (12) and a bow (11), wherein two flow channels (27) are provided in the hull (10) or on the hull (10), which flow channels extend from a water inlet (22) to a water outlet (24), wherein a water acceleration device (52), in particular a propeller or a propelling screw, is arranged in each of the two flow channels (27), wherein each water acceleration device (52) is driven by a motor (50), wherein handles (31) a user can hold on to are arranged in the midship area between the bow (11) and the stern (12) or in the bow area, wherein a support surface (40) is provided adjoining the handles (31) in the direction of the stern (12), on which support surface the user can at least partially rest, and wherein two spaced-apart bulges extending in the longitudinal direction of the hull (10) are provided on the underside of the hull (10), between which bulges at least one water-sliding surface (14, 15) is arranged. To be able to implement a low flow resistance with a compact structure in such a watercraft, provision is made according to the invention that the flow channels (27) extend at least sectionally in the area of the bulges.

A wind-water machine set is an evolving jet machine that moves the internal engine to the outside of the sleeve to work, instead of using a water jet as the main and air-jet as the auxiliary. When a ship uses multiple groups of wind-water machine set, there is a master control center for overall control and coordinated operation. Controlling the propulsion system makes the ship move forward and backward in an orderly manner. Control the surfing system to eliminate the bow water resistance and cooperate with the propulsion system. The steering control system is controlled to make the ship easy to operate the steering. Control the balance system to keep the ship balanced without swaying the roll angle. Control the draught system so that ships do not need ballast water. So that the ship can sail at super high speed, super fuel-efficient and safe.

A pontoon boat including a thruster system is disclosed.

A watercraft includes a vessel body, a marine propulsion device and a guide. The marine propulsion device is attached to the vessel body and includes a water stream generator that propels the vessel body. The guide is provided on the vessel body and extends astern of the vessel body and toward a center of the vessel body in a width direction of the vessel body from a position located sideward of the water stream generator. The guide inwardly directs water flowing on one lateral side of the vessel body such that confluent timing of the water flowing on the one lateral side of the vessel body and water flowing on the other lateral side of the vessel body is caused to occur earlier than when the guide is not provided on the vessel body.

A system for manoeuvring a boat with fenders is described. A plurality of water nozzles is provided on the boat. Further, a plurality of pumps is operated by an artificial intelligence module and/or control unit and powered by the power source 130 of the boat. The plurality of pumps is primed continuously to reduce response time to control the plurality of pumps and each of the plurality of pumps is connected to one water nozzle. A plurality of sensors is configured to monitor the state of motion of the boat. Further, an artificial intelligence module is in communication with the plurality of water nozzles, the plurality of pumps, and the plurality of sensors. The artificial intelligence module is configured to keep the boat in a stationary standstill or on a chosen course of motion.

An integrated thruster and ballast system in accordance with some examples herein may include a conduit disposed within a hull of the boat. The conduit includes a first opening in fluid communication with a body of water, a second opening in selective fluid communication with the body of water, and an outlet disposed within the boat. The integrated thruster and ballast system includes a ballast tank in selective fluid communication with the conduit via the outlet, a thruster disposed within the conduit and configured to move water through the conduit, a first valve disposed in the conduit and configured to selectively divide or establish the fluid communication between the conduit and the ballast tank; and a second valve disposed in the conduit and configured to selectively divide or establish the fluid communication between the second opening and the body of water.

An electric underwater jet motor designed for vehicles traveling above or below the sea. The electric underwater jet motor includes a plurality of stators for marine crafts; at least one radial stator, at least one rotor, at least two impeller blades, a magnetic bearing; at least one permanent magnet bar; at least one axial stator, hydrodynamic bearing components, a motor housing and an engine fastener; a hydrodynamic jet motor housing; and a control unit including a microprocessor, a software, magnetic bearing distance sensors, counter and speed measurement sensors, gyroscopic balance sensors to provide comfortable travel by collected data to reduce an effect of sea currents and wave movements which are the consequences of seasickness on the passengers at sea, heat and humidity sensors, pressure measurement sensors, voltage and ampere measurement sensors, a motor drive circuitry, software algorithms, an energy management system, a control panel, batteries and battery charging components.

The present invention discloses a mobile operating platform for a paddy field, including a body, a power generating device, a movement control system, a draft control system and an automatic leveling system, where the power generating device, the movement control system, the draft control system and the automatic leveling system are all mounted on the body. The present invention has a compact overall structure, and utilizes the pressure of a water flow to realize the movement of the platform, and can fully utilize the characteristics of the water flow to reduce power consumption, and avoid the use of a heavy and complicated traditional walking device, the entire mobile operating platform for a paddy field does not contact the ground, saving mechanical power and avoiding damage to an aquatic crop; the draft control system adjusts a draft by the amount of water filled in a closed cavity in the body.

The present invention discloses a mobile operating platform for a paddy field, including a body, a power generating device, a movement control system, a draft control system and an automatic leveling system, where the power generating device, the movement control system, the draft control system and the automatic leveling system are all mounted on the body. The present invention has a compact overall structure, and utilizes the pressure of a water flow to realize the movement of the platform, and can fully utilize the characteristics of the water flow to reduce power consumption, and avoid the use of a heavy and complicated traditional walking device, the entire mobile operating platform for a paddy field does not contact the ground, saving mechanical power and avoiding damage to an aquatic crop; the draft control system adjusts a draft by the amount of water filled in a closed cavity in the body.