Patent ID: 7325505

Claim:
A system for controlling steering of a plurality of outboard motors each adapted to be mounted on a stern of a boat by a shaft to be movable by an actuator relative to the boat and each having an internal combustion engine and a propeller powered by the engine to propel the boat, comprising: a crank angle sensor detecting a speed of at least one of the engines installed in the outboard motors; a rotation angle sensor detecting a rotation angle of a steering wheel installed at a cockpit of the boat; a desired steering angle determining mechanism determining a desired steering angle of each outboard motor individually based on the detected engine speed and the detected rotation angle of the steering wheel; and a controller controlling operation of the actuator based on the determined desired steering angle; wherein the desired steering angle determining mechanism determines the desired steering angle of each outboard motor individually such that extensions of axes of rotation of the propellers of the outboard motors are adjustable according to the engine speed.