be thus the pitch angle of the propeller 50 can be set directly to maneuver the ship by means of the main drive ha by way of a so called travel lever or also machine telegraphs for example in the first harbor mode in the second maneuver mode the pitch of the propeller 50 can be directly predetermined by way of the travel lever in that way when the main drive ha is rotating at a constant speed and direction the propulsion force and the direction of travel of the ship that is to say forwards or backwards can directly predetermined by the change in propeller pitch by way of the operating unit be in the third river mode the power of the main drive ha or the propeller 50 which is to be maintained by the control can be predetermined directly by way of the travel lever of the operating unit be in that respect the way in which that power can be achieved that is to say which power is produced by the magnus rotors 10 and which remaining power has to be additionally produced by the diesel drive da or the multiplicity thereof can be left to the control thus for example a power output from the main drive ha or the propeller 50 of 2 000 kw can be predetermined in the fourth sea mode the speed of the ship can be predetermined as an absolute value or also relative to the maximum.