A pontoon boat including a thruster system is disclosed. The pontoon boat executes various operations relating to a speed and heading of the pontoon boat.

A stowable propulsion system for a marine vessel. A base is configured to be coupled to the marine vessel. A propulsion device is configured to propel the marine vessel in water. A shaft extends along a length axis and pivotably couples the propulsion device to the base. The propulsion device is pivotable into and between a stowed position and a deployed position, wherein pivoting the propulsion device causes the shaft to rotate about the length axis.

A boat may have a deck and a plurality of pontoons or hulls supporting the deck of the boat. The boat may include a starboard side pontoon, a port side pontoon, and possibly a middle pontoon. A positioning assembly may be provided with one or more of the foregoing pontoons. Each of the positioning assemblies may comprise a link assembly and an actuator provided to position the toon between the retracted position and the extended position. The boat may further include a leveling control system having a controller and a level sensor configured to detect an attitude of the deck, the controller in communication with the actuators and cause actuation of either or both of the actuators to extend or retract the port side toon and/or the starboard side toon based on data received from the level sensor indicative of the deck attitude.

A vessel (10) comprising a plurality of hulls (15, 15c, 15o) on which is mounted a support (35) with a plurality of solar cells (30) mounted on the support (35) and connected to a plurality of batteries (40) is disclosed. A plurality of osmosis desalination devices (50) is connected electrically to the plurality of batteries (40) and have an input connected to a water supply and an output (54) connected to at least one water storage tank (60).

An unmanned sailing vehicle comprising: a primary hull; a rigid wing rotationally coupled with said primary hull that freely rotates about a rotational axis of said rigid wing; a boom comprising a first end extending from a leading edge of said rigid wing and a second end extending from a trailing edge of said rigid wing, said first end of said boom comprising a counterweight configured to dynamically balance a wing system comprising said rigid wing, said boom, and said tail with respect to said rotational axis of said rigid wing; a tail coupled to said second end of said boom; a control surface element disposed on said tail and configured to aerodynamically control a wing angle of said rigid wing based on a position of said control surface element; and a controller configured to determine a control surface angle and generate a signal to position said control surface element.

The invention discloses an intelligent detection method for multiple types of faults for near-water bridges and an unmanned surface vehicle. The method includes an infrastructure fault target detection network CenWholeNet and a bionics-based parallel attention module PAM. CenWholeNet is a deep learning-based Anchor-free target detection network, which mainly comprises a primary network and a detector, used to automatically detect faults in acquired images with high precision. Wherein, the PAM introduces an attention mechanism into the neural network, including spatial attention and channel attention, which is used to enhance the expressive power of the neural network. The unmanned surface vehicle includes hull module, video acquisition module, lidar navigation module and ground station module, which supports lidar navigation without GPS information, long-range real-time video transmission and highly robust real-time control, used for automated acquisition of information from bridge underside.

A pontoon boat has a planing panel located between pontoons and configured such that a substantial portion of the planing panel planes or rides on top of the water while the boat is traveling at planing speeds, thus reducing friction and increasing efficiency and maneuverability. The boat may be a “tritoon” boat having three laterally spaced pontoons, in which case at least two planing panels are provided in the spaces or gaps between each pair of adjacent pontoons. Each planing panel may be segmented from front to rear, with the rear segment(s) being higher than the front segment to enhance the ability of the bow of the boat to ride out of the water while preventing water from impinging against the rear of the boat's underdeck. An inclined panel may be provided in front of the planing panel to reduce wave impact energy.

A watercraft includes: a watercraft body; a pontoon frame system coupled with the watercraft body, the pontoon frame system including: a plurality of pontoons spaced apart from one another; and a chassis coupled with and at least partially supporting the watercraft body, the chassis supported by and coupling together the plurality of pontoons, the chassis including a cross-hatched assembly.

A watercraft includes: a watercraft body; and a pontoon frame system coupled with the watercraft body, the pontoon frame system including: a plurality of pontoons spaced apart from one another and including a forward end, a rearward end, a first outboard pontoon, and a second outboard pontoon; and a chassis coupled with and at least partially supporting the watercraft body, the chassis supported by and coupling together the plurality of pontoons, the chassis including a composite body coupled with the first outboard pontoon and the second outboard pontoon at the forward end and the rearward end.

A method for assembling an electricity production structure including a plurality of floating modules, each having a frame and at least one photovoltaic panel, the structure further including at least one tarpaulin stretched under the panels of the modules, the method includes the steps of: supplying a first module with at least one tarpaulin having a main direction and being fixed to said frame in an initial folded or rolled-up configuration enabling deployment of a length of the tarpaulin in the main direction starting from said initial configuration, positioning at least one additional module adjacent to the first module in the main direction of the tarpaulin, assembling the modules, and deploying, tensioning, and fixing each tarpaulin of the first module to the frame of a module other than the first module.