Abstract: A ship control system that includes a ship and an input device, in which the ship includes an actuator having a function of generating thrust for the ship and a function of generating a moment in the ship, a first operation unit configured to receive an input operation from a ship operator, and a ship control device configured to activate the actuator, the input device includes a second operation unit configured to receive an input operation from the ship operator, the ship control device includes a first operation mode and a second operation mode, a moment is generated in the ship on the basis of the input operation received by the first operation unit in the first operation mode, the actuator is activated on the basis of the input operation received by the second operation unit in the second operation mode, and the ship control device executes bow direction feedback control of the ship on the basis of a deviation between a target bow direction and an actual bow direction of the ship in the second operation

Abstract: A ship launching support system configured to support launching work of a ship of disengaging the ship from a trailer on which the ship is loaded, the ship including an actuator having a function of generating propulsion power of the ship and a function of generating a moment on the ship, and a ship control device configured to actuate the actuator, during the launching work of the ship, the ship control device causing the actuator to generate backward propulsion power of the ship, and executing feedback control of a bow azimuth of the ship on the basis of a deviation between an actual bow azimuth that is a bow azimuth of the ship in actuality and a target bow azimuth.

Abstract: A ship including an engine, a jet propulsion device, a ship controller, and a ship position detection unit, in which the jet propulsion device includes a nozzle that ejects a jet stream generated by the driving force output from the engine, and a bucket that changes a direction of the jet stream, the position of the bucket includes at least a forward-side intermediate position between the forward position and the neutral position, the ship controller has a ship fixed point holding mode in which feedback control of the engine and the jet propulsion device is performed based on a deviation between a preset target ship position and the actual ship position, and both control of the position of the bucket including the forward-side intermediate position and control of a rotational speed of the engine are performed in the ship fixed point holding mode.