A fin stabilizer is provided for a vessel and includes a fin which is supported by a shaft that extends below the waterline. The shaft is fixed in rotation along its elongate axis relative to the vessel and the fin includes an actuator mechanism which causes the fin to rotate around the shaft to counteract roll of the vessel. In some cases, the actuator may be hydraulic and the shaft may include passages therethrough to transfer hydraulic fluid/pressure from the vessel's interior hydraulic system through the shaft and into the actuator to cause the fin to rotate. The fin may also be able to pivot into a storage position where, for example, the shaft is folded into a cavity in the vessel hull.

A steering cylinder for an outboard engine of a marine vessel. The steering cylinder includes a first cylinder including a first fluid port and a second fluid port. The first cylinder defines a first space. The steering cylinder includes a second cylinder defining a first end and a second end. The second cylinder defines a second space housing a hollow piston. The second cylinder is configured to move with respect to the first cylinder. The steering cylinder includes a hollow piston rod positioned at least partially within the first space and defining a first end and a second end, the first end being fluidly coupled with the first fluid port and the second end being coupled to the hollow piston. The steering cylinder is configured to actuate between an extended position and a retracted position to steer the marine vessel.

A steering system for a marine vessel, the steering system comprises a first steering apparatus having a first steering actuator for steering the first steering apparatus and a second steering apparatus having a second steering actuator for steering the second steering apparatus. There is a mechanical steering linkage operatively connecting the first steering apparatus to the second steering apparatus so the steering apparatuses are steered synchronously. A user input device provides user inputted steering commands. A control apparatus operatively connects to the actuators and to the user input device. The control apparatus controls the steering of the steering apparatuses so both of the steering apparatuses are simultaneously steered the same amount.

A steering system for a marine vessel, the steering system comprises a first steering apparatus having a first steering actuator for steering the first steering apparatus and a second steering apparatus having a second steering actuator for steering the second steering apparatus. There is a mechanical steering linkage operatively connecting the first steering apparatus to the second steering apparatus so the steering apparatuses are steered synchronously. A user input device provides user inputted steering commands. A control apparatus operatively connects to the actuators and to the user input device. The control apparatus controls the steering of the steering apparatuses so both of the steering apparatuses are simultaneously steered the same amount.

A steering system for a vehicle includes a hydraulic steering system configured to, in response to a steering input provided at a steering mechanism of the vehicle, control a pump to control a steering device to steer the vehicle, a sensor configured to sense an angle or position associated with the steering input provided at the steering mechanism, an electric power steering system configured to receive a signal from the sensor and provide powered steering assistance to the hydraulic steering system based on the signal and a pump-slip offset associated with the pump, and a controller configured to determine the pump-slip offset. The pump-slip offset corresponds to a difference between the angle or position associated with the steering input and an actual position of the steering device achieved by the pump.

A steering system for a vehicle includes a hydraulic steering system configured to, in response to a steering input provided at a steering mechanism of the vehicle, control a pump to control a steering device to steer the vehicle, a sensor configured to sense an angle or position associated with the steering input provided at the steering mechanism, an electric power steering system configured to receive a signal from the sensor and provide powered steering assistance to the hydraulic steering system based on the signal and a pump-slip offset associated with the pump, and a controller configured to determine the pump-slip offset. The pump-slip offset corresponds to a difference between the angle or position associated with the steering input and an actual position of the steering device achieved by the pump.