| 摘要 |
PURPOSE: A ship is provided to reduce an effect due to a hub vortex induced by the hub of a propeller. CONSTITUTION: A ship includes a hull (100) and a rudder (300). A propeller (200) is installed at one side of the hull. The rudder adjacent to the propeller controls the heading direction of the hull. The rudder has a rudder main body (310) and a rotary rudder bulb (330). The rudder main body is coupled to the hull, and at least one part of the rudder bulb is rotatably coupled to the rudder main body. |
