LINE DESIGN AND PROPULSION SYSTEM FOR A DIRECTIONALLY STABLE, SEAGOING BOAT WITH RUDDER PROPELLER DRIVE SYSTEM

摘要

A SEA-GOING SHIP WHICH IS PROPELLED BY AT LEAST TWO STEERING PROPELLERS AND HAS A HULL FOR TRANSPORTING CARGOES OR PASSENGERS, WITH THE STEERING PROPELLERS PREFERABLY BEING IN THE FROM OF ELECTRICAL STEERING PROPELLERS (PODS), AND WITH THE HULL HAVING AN APPROXIMATELY RECTANGULAR RECTANGULAR CROSS SECTION MIDSHIPS, ADJACENT TO WHICH, TOWARD THE STERN, THERE ARE FLOW GUIDE BODIES (SKEGS) BETWEEN WHICH A FLOW CHANNEL IS FORMED, AND IN WHICH THE FLOW CHANNEL IS WEDGE-SHAPED AND WIDENS CONTINUOUSLY, PREFERABLY WITH SLIGHT CURVATURE, TOWARD THE AREA UNDER THE STERN WITH THE SIDE WALLS OF THE FLOW CHANNEL BEING AT LEAST PARTIALLY IN THE FROM OF PLANAR SURFACES AND RUNNING INTO FINLIKE WEBS WHICH HAVE DISPLACEMENT VOLUMES FOR THE WATER, AND WITH THE CHANNEL EFFECT OF THE FLOW CHANNEL PRODUCING LOW SHIP DRAG, AND WHOSE INFLUENCE ON THE WAKE HAS A POSITIVE EFFECT ON THE PROPULSION EFFICIENCY. @@FIG. 1