An aquatic vessel, illustratively a pontoon boat including a thruster system is disclosed. The aquatic vessel executes a process to automatically position the aquatic vessel relative to a target location such as a mooring implement. Exemplary mooring implements include a dock, a slip, or a lift.

An aquatic vessel, illustratively a pontoon boat including a thruster system is disclosed. The aquatic vessel executes a process to automatically position the aquatic vessel relative to a target location such as a mooring implement. Exemplary mooring implements include a dock, a slip, or a lift.

A propulsion system for a marine vessel having a first driveline assembly having a first engine and a first motor-generator, a second driveline assembly having a second engine and second motor-generator, and a controller configured to operate of the assemblies in a split mode. The split mode includes the first driveline assembly being driven by the first engine without torque assistance from the first motor-generator and the second driveline assembly being driven by the second motor-generator without torque assistance from the second engine and includes the first motor generator providing electrical power to the marine vessel grid for consumption.

A propulsion system for a marine vessel having a first driveline assembly having a first engine and a first motor-generator, a second driveline assembly having a second engine and second motor-generator, and a controller configured to operate of the assemblies in a split mode. The split mode includes the first driveline assembly being driven by the first engine without torque assistance from the first motor-generator and the second driveline assembly being driven by the second motor-generator without torque assistance from the second engine and includes the first motor generator providing electrical power to the marine vessel grid for consumption.

Maintenance personnel need to be safely transferred to offshore structures from marine vessels in varying sea and weather conditions. Disclosed herein is a control system for a marine vessel (100) having a propulsion and steering system (101) and a fender arrangement (102) at the bow of the marine vessel to provide contact between the marine vessel and an external structure (103). The control system comprises force, pressure, torque or strain sensors and a controller. The force, pressure, torque or strain sensors measure force, pressure, torque or strain that are indicative of forces between the fender arrangement (102) and the external structure (103). The controller controls the operation of the propulsion and steering system (101) to substantially obtain or maintain desired forces between the fender arrangement (102) and the external structure (103) based on the force, pressure, torque or strain measurements from the force, pressure, torque or strain sensors.

Maintenance personnel need to be safely transferred to offshore structures from marine vessels in varying sea and weather conditions. Disclosed herein is a control system for a marine vessel (100) having a propulsion and steering system (101) and a fender arrangement (102) at the bow of the marine vessel to provide contact between the marine vessel and an external structure (103). The control system comprises force, pressure, torque or strain sensors and a controller. The force, pressure, torque or strain sensors measure force, pressure, torque or strain that are indicative of forces between the fender arrangement (102) and the external structure (103). The controller controls the operation of the propulsion and steering system (101) to substantially obtain or maintain desired forces between the fender arrangement (102) and the external structure (103) based on the force, pressure, torque or strain measurements from the force, pressure, torque or strain sensors.

A monolithic attitude control motor frame includes a monolithic structure including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. Adjacent cavities of the plurality of cavities share a side wall or side wall portion therebetween. Each of the cavities is configured to receive an attitude control motor. A monolithic attitude control motor system includes a monolithic frame including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. The system further includes a plurality of attitude control motors corresponding to the plurality of cavities, such that an attitude control motor of the plurality of attitude control motors is disposed in each cavity of the plurality of cavities.

A monolithic attitude control motor frame includes a monolithic structure including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. Adjacent cavities of the plurality of cavities share a side wall or side wall portion therebetween. Each of the cavities is configured to receive an attitude control motor. A monolithic attitude control motor system includes a monolithic frame including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. The system further includes a plurality of attitude control motors corresponding to the plurality of cavities, such that an attitude control motor of the plurality of attitude control motors is disposed in each cavity of the plurality of cavities.

One example provides an electric watercraft including a jet propulsion system to form a water jet to provide thrust to propel the watercraft, an electric motor to drive the jet propulsion system, a battery system to power the motor, an accelerator which can be actuated over an accelerator actuation range to control the motor to adjust an amount of thrust provided by the water jet, and a steering mechanism operable over a steering range to steer the watercraft. A controller receives information indicative of a speed of the watercraft and enables an otherwise disabled off-throttle steering functionality when the speed exceeds a predetermined speed threshold. When the off-throttle steering functionality is enabled, the controller activates the off-throttle steering functionality in response to off-throttle steering conditions being satisfied, and when the off-throttle steering functionality is disabled, prevents activation of the off-throttle steering functionality when the off-throttle steering conditions are satisfied.

One example provides an electric watercraft including a jet propulsion system to form a water jet to provide thrust to propel the watercraft, an electric motor to drive the jet propulsion system, a battery system to power the motor, an accelerator which can be actuated over an accelerator actuation range to control the motor to adjust an amount of thrust provided by the water jet, and a steering mechanism operable over a steering range to steer the watercraft. A controller receives information indicative of a speed of the watercraft and enables an otherwise disabled off-throttle steering functionality when the speed exceeds a predetermined speed threshold. When the off-throttle steering functionality is enabled, the controller activates the off-throttle steering functionality in response to off-throttle steering conditions being satisfied, and when the off-throttle steering functionality is disabled, prevents activation of the off-throttle steering functionality when the off-throttle steering conditions are satisfied.