| 摘要 |
PURPOSE: A rudder for ship is provided to improve durability by the prevention of erosion and corrosion and by satisfying the ship construction reference value with its strength. CONSTITUTION: A rudder for ship(10) includes a rudder wing part(11) and a rib part(15). The rudder wing part made of integrated cast steel has a streamline-shaped section and a longitudinal hollow hole at the center. The rib part is arranged in the hollow hole to connect the rudder wings each other. The rudder wing part has a twist shape, wherein the upper part and lower parts go cross each other to the left or the right from the center. |
