A support system for outboard marine motors at the transom of a boat includes a support device having a first part that is integral with the transom and a second part that is integral with the outboard motor. The second part is translatable with respect to the first part, so that the second part moves according to an orientation in the distancing or approaching direction of the water line of the boat. A control unit is configured to set the position of the second part with respect to the first part and to generate control signals, so as to move the second part in the direction of immersion of the propeller of the outboard motor.

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 coupling the deck to the starboard side toon, wherein the link assembly is configured to permit pivoting of the starboard side toon relative to the deck from a retracted position, where the starboard side toon is proximate to an underside of the deck, to an extended position, where the starboard side toon is moved further from the underside, and an actuator provided to position the starboard side 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 floating device having active stabilization and a method for actively stabilizing a floating device employs a floating device that operates underwater and which may be tethered to the floor of the body of water. The floating device having active stabilization includes an internal sensor assembly which measures angular velocity and generates a real time output corresponding to a measured angular velocity and a counter-rotation assembly which generates in real time mechanical energy in the form of rotation in response to the real time output of the sensor assembly that causes a counter-rotation torque on the device body that opposes the measured angular velocity. The counter-rotation torque may be imparted by accelerating a flywheel as a reaction wheel in the opposite direction of the desired counter-rotation torque, thereby achieving stability of the device body in the form of minimizing rotation.

A floating device having active stabilization and a method for actively stabilizing a floating device employs a floating device that operates underwater and which may be tethered to the floor of the body of water. The floating device having active stabilization includes an internal sensor assembly which measures angular velocity and generates a real time output corresponding to a measured angular velocity and a counter-rotation assembly which generates in real time mechanical energy in the form of rotation in response to the real time output of the sensor assembly that causes a counter-rotation torque on the device body that opposes the measured angular velocity. The counter-rotation torque may be imparted by accelerating a flywheel as a reaction wheel in the opposite direction of the desired counter-rotation torque, thereby achieving stability of the device body in the form of minimizing rotation.

A system for maintaining a predetermined roll angle of a hull of a marine vessel, the system comprising: a stabilisation element arranged below the waterline on an outer surface of the hull, a sensor unit providing a first sensor data providing information relating to the movement and/or positioning of the marine vessel, a processing unit 5 receiving the first sensor data and providing a first control output, a control unit receiving the first control output and providing a first control input to the stabilisation element to counteract a rolling movement and/or positioning of the marine vessel.

A system for maintaining a predetermined roll angle of a hull of a marine vessel, the system comprising: a stabilisation element arranged below the waterline on an outer surface of the hull, a sensor unit providing a first sensor data providing information relating to the movement and/or positioning of the marine vessel, a processing unit 5 receiving the first sensor data and providing a first control output, a control unit receiving the first control output and providing a first control input to the stabilisation element to counteract a rolling movement and/or positioning of the marine vessel.

Systems and methods and described herein that can enable accurate forecasting of ship motions and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with graphical indication of ship motion forecasts in the form of operational period indicators. These operational period indicators are generated such that the ship motion forecasts under at least one motion threshold for a time period exceeding a time threshold are indicated in a first way, while ship motion forecasts not under the at least one motion threshold for the time period exceeding the time threshold are indicated in a second way, different from the first way. This can facilitate the quick determination of operational status by a user and thus allow a user to quickly ascertain when conditions are likely to be such that certain ship operations can be safely performed.

Systems and methods and described herein that can enable accurate forecasting of ship motions and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with graphical indication of ship motion forecasts in the form of operational period indicators. These operational period indicators are generated such that the ship motion forecasts under at least one motion threshold for a time period exceeding a time threshold are indicated in a first way, while ship motion forecasts not under the at least one motion threshold for the time period exceeding the time threshold are indicated in a second way, different from the first way. This can facilitate the quick determination of operational status by a user and thus allow a user to quickly ascertain when conditions are likely to be such that certain ship operations can be safely performed.

A floating device having active stabilization and a method for actively stabilizing a floating device employs a floating device that operates underwater and which may be tethered to the floor of the body of water. The floating device having active stabilization includes an internal sensor assembly which measures angular velocity and generates a real time output corresponding to a measured angular velocity and a counter-rotation assembly which generates in real time mechanical energy in the form of rotation in response to the real time output of the sensor assembly that causes a counter-rotation torque on the device body that opposes the measured angular velocity. The counter-rotation torque may be imparted by accelerating a flywheel as a reaction wheel in the opposite direction of the desired counter-rotation torque, thereby achieving stability of the device body in the form of minimizing rotation.

A floating device having active stabilization and a method for actively stabilizing a floating device employs a floating device that operates underwater and which may be tethered to the floor of the body of water. The floating device having active stabilization includes an internal sensor assembly which measures angular velocity and generates a real time output corresponding to a measured angular velocity and a counter-rotation assembly which generates in real time mechanical energy in the form of rotation in response to the real time output of the sensor assembly that causes a counter-rotation torque on the device body that opposes the measured angular velocity. The counter-rotation torque may be imparted by accelerating a flywheel as a reaction wheel in the opposite direction of the desired counter-rotation torque, thereby achieving stability of the device body in the form of minimizing rotation.