Abstract: A ship's propeller is mounted so its blades will rotate closer to the shell plating of the adjacent hull, than is generally considered advantageous. A recess is formed inside the shell plating in the region of the propeller, the recess having a depth locating its inward wall at a distance from the tips of the rotating propeller blades corresponding to about 25% of the propeller diameter. The recess can be provided with a number of spaced-apart, transverse bars having a height less than the maximum depth of the recess.

Abstract: A seagoing vessel is provided with a bow bulb composed of a main body, integral with the vessel's hull and a covering cowl member, which is swingable about horizontal hinges at its rear end. In fully loaded/stationary condition the top ridge of the cowl member just touches the water level. Remotely controlled power motors between the main body and the cowl will raise the forward end of the cowl, so it maintains contact with the occasional water level caused by damming due to the speed of the ship in motion.

Abstract: A seagoing vessel comprises a hull having a forwardly projecting bulb at its bow. The bulb includes an upper periphery oriented substantially horizontally and exposed above the water surface when the vessel is stationary and in a fully loaded condition. A pair of side skegs extend rearwardly from an underside of the vessel at the stern end. Propeller shafts extend through the side skegs. The side skegs and propeller shafts converge in a rearward direction. Each side skeg includes a planar outboard surface and a bulbous inboard surface, the latter inducing an outboard flow of water through a top segment of the associated propeller in a direction opposite the direction of propeller rotation. A center skeg extends between the side skeg and includes downwardly converging and rearwardly diverging sides which induce an outboard flow of water through a top segment of a respective propeller in a direction opposite the direction of propeller rotation.

Abstract: A ship's docking plant includes a floating platform, partly enclosing a vertically displaceable docking member, providing large working areas around the same, when in raised position. The docking member is retained in relation to the platform by a vertical guide means at the inward, transverse side of the docking member, said guide means permitting the docking member to obtain various angular positions with respect to a horizontal plane, in the longitudinal, as well as in the transverse direction. The docking member is, along its longitudinal sides, connected to the platform by means of reversible chain winches, permitting an adjustment of the position of the docking member in relation to a horizontal plane, when lowered down.