IMPROVEMENTS RELATED TO SHIP PROPULSION PROVIDED WITH MAIN AND SECONDARY PROPULSION DEVICES

摘要

The present invention relates to a ship providing a hull (2) having a bow (201) and a stern (202), the bow comprising:-at least one main propulsion device (3) At least two secondary propulsion devices (4) positioned against each other-the propulsion capability of each secondary propulsion device (4) is less than 30% of the propulsion capability of any of the at least one primary propulsion device (3)-the propulsion devices (3, 4), when projected on a plane perpendicular to the hull center line (CL), each of the secondary propulsion devices (4) At least two secondary propulsion devices 4 are arranged so as not to overlap with the horizontal extension (HEM) of any of the main propulsion devices 3 of the propulsion devices 4, When the regions 7 leaving the secondary propulsion devices 4 of the hull 2 travel straight ahead at full speed or flank speed within the boundary layer 6 of the hull 2, At least partially.;