Electro-mechanical steering device, especially for boats

In an electro-mechanical steering device, comprising a manual steering means, mechanical transmission means acting between the steering means and steered element, said transmission means being in the form of a control cable consisting of a cable jacket and an operating cable displaceable in the jacket, an electrical servo motor coupled to the steered element, and means cooperating with the manual steering means arranged to send a steering signal to the servo motor upon actuation of the manual steering means, the improvement wherein the manual steering means (5) is coupled to a command value sender (8), arranged to send a signal dependent on the position of the steering means relative to a predetermined position to an electronic control unit (10), the steered element (12) is coupled to an actual value sensor (15), disposed to send a signal, dependent on the position of the steered element relative to a predetermined position, to the control unit, said control unit being disposed to compare said signals and send a control signal dependent on the difference to the servo motor (14), and the jacket and the operating cable are so joined to the steering means and the steered element that an initial operating movement of the steering means does not cause a relative displacement between the cable and the jacket.