Rudder

Rudder arrangement on a ship, comprising a rudder blade which is fastened via a rudder stock to an aft end of the ship

• the rudder blade is a rudder blade of suspension type, comprising a first rudder blade part and a second rudder blade part, arranged above and below each other, respectively,
• the rudder stock is mounted in and fastened to the rudder blade and extends up into the aft end of the ship, where the rudder stock is coupled at an upper end to a steering gear arranged at the aft end of the ship;
• and
• an outer tube is arranged about the rudder stock, where the outer tube is fastened in the first, upper rudder blade part and the aft end of the ship, respectively, and that the rudder stock extends through the outer tube and down into the second, lower rudder blade part, and
• a lower radial bearing is arranged about the outer tube in the upper rudder blade part, and that an upper radial bearing is arranged about the outer tube and to the aft end of a hull
• wherein two rudder blade parts are coupled together in a bolt connection that lies in an area above a central axis which corresponds to a shaft of a propeller,
• wherein said central axis makes up a divide between two corresponding, twisted rudder blade profiles, and
• wherein the lower rudder blade part comprises a whole of the lower rudder blade profile and also parts of an upper rudder blade profile, and that an upper rudder blade part comprises a rest of the upper rudder blade profile.