Patent ID: 8550948

Claim:
A ship propulsion ( 3 ) comprising a transmission unit ( 4 , 204 ) being fixed in position within a hull ( 6 ) of a ship, a control device ( 200 , 300 ) communicating with a portion of the ship propulsion ( 3 ) to pivot the portion of the ship propulsion around a control axis ( 10 , 110 , 210 , 310 ); a propulsion unit ( 5 , 205 ) being located outside the hull and connected to the transmission unit; the control device having a control motor ( 120 , 220 , 320 ) and at least one control transmission ( 130 , 230 , 330 ); the control transmission ( 230 , 330 ) being a reduced planetary transmission comprising first and second central gears ( 231 , 232 , 331 , 332 ) and only one planetary gear carrier ( 233 , 333 ) comprising at least first and second planetary gears ( 238 , 338 ); and the planetary gear carrier ( 233 , 333 ) comprising the first and the second planetary gears ( 238 , 338 ) being coaxial with the control axis.