Abstract: A dynamic control system for a marine vessel having two or more waterjet units as the primary propulsion system of the vessel, for maintaining vessel position or velocity when in a dynamic control mode, comprises a position or velocity indicator to indicate vessel position or velocity or deviations in vessel position or velocity; such as a satellite-based positioning system indicator, or accelerometers as a relative position indicator, a heading indicator to indicate vessel heading from position heading or yaw rate or deviations in vessel heading or yaw rate, such as a compass as an absolute heading indicator or a yaw rate sensor as a relative heading indicator, and a controller to control the operation of the waterjet units to substantially maintain the vessel position or velocity, and vessel heading or yaw rate when the dynamic control mode is enabled.

Abstract: A steering system for a marine vessel includes one or more steering devices operable to turn a marine vessel; a steering input device arranged to generate a desired turn rate signal; a rate sensor arranged to generate a turn rate signal indicative of vessel turn rate; and a control system configured to receive the vessel and desired turn rate signals and to control the steering device(s) to turn the marine vessel so as to minimise any difference between the signals.

Abstract: A dynamic control system for a marine vessel having two or more waterjet units as the primary propulsion system of the vessel, for maintaining vessel position or velocity when in a dynamic control mode, comprises a position or velocity indicator to indicate vessel position or velocity or deviations in vessel position or velocity; such as a satellite-based positioning system indicator, or accelerometers as a relative position indicator, a heading indicator to indicate vessel heading from position heading or yaw rate or deviations in vessel heading or yaw rate, such as a compass as an absolute heading indicator or a yaw rate sensor as a relative heading indicator, and a controller to control the operation of the waterjet units to substantially maintain the vessel position or velocity, and vessel heading or yaw rate when the dynamic control mode is enabled.

Abstract: A steering system for a waterjet propelled marine vessel is disclosed that incorporates an intelligent control system interfacing a manually steerable control device with a number integrated propulsion systems. The propulsion systems can be controlled by the control system in isolation or in combination with one another in order to propel and steer the marine vessel.

Abstract: A steering system for a marine vessel includes one or more steering devices operable to turn a marine vessel; a steering input device arranged to generate a desired turn rate signal; a rate sensor arranged to generate a turn rate signal indicative of vessel turn rate; and a control system configured to receive the vessel and desired turn rate signals and to control the steering device(s) to turn the marine vessel so as to minimise any difference between the signals.

Abstract: A dual axis joystick control system is used intuitively for maneuvring a waterborne vessel having two or more waterjets with steering deflectors (13) and reverse ducts (14) mounted independently of the steering deflectors. The joystick (21) is operated to actuate the reverse ducts of the port and starboard waterjets for either common or differential deflections of thrust, and to actuate the steering deflectors of the port and starboard waterjets for common deflections of thrust.

Abstract: A dual axis joystick control system is used intuitively for maneuvring a waterborne vessel having two or more waterjets with steering deflectors (13) and reverse ducts (14) mounted independently of the steering deflectors. The joystick (21) is operated to actuate the reverse ducts of the port and starboard waterjets for either common or differential deflections of thrust, and to actuate the steering deflectors of the port and starboard waterjets for common deflections of thrust.