NON-BALLAST SHIP WITH A SUBMERGED BOTTOM, CAPABLE OF CLOSING UP A BALLAST WATER TANK TO SECURE PROPER DRAFT

摘要

PURPOSE: A non-ballast ship with a submerged bottom is provided to reduce ship construction cost by removing the need of a facility for treatment of ballast water.;CONSTITUTION: A non-ballast ship with a submerged bottom comprises a hull(10), a stern protrusion(12), and an open structure(14). The hull has a plurality of cargo spaces. The stern protrusion is projected downward from the bottom of the stern of the hull. The open structure is extended from the stern protrusion in order to allow or block the passage of sea water to the bottom of the hull.;COPYRIGHT KIPO 2010