The invention relates to a ship of the displacement type with a Ramform™ hull that has a transom stern (100), a longitudinal length L in the design waterline plane (300), a base plane (400) parallel with the design waterline plane at a distance T corresponding to the design draught of the hull and including essentially sinusoidal waterlines (602), a sloping plane (200) that comprises the bottom of the after end of the ship and which extends from the transom stern (100) at the design waterline plane (300) to the base plane (400) at approximately L/2 and a bulge on each side along a considerable part of the length of the hull, terminating at the forward end of the hull ahead of the length L in a tongue-like bulb member (900). The relationship between the maximum beam B and the design draught T is considerably more than 7, preferably between 10 and 12, and where the bulges (901) form the bulb member (900) and aft towards L/2 have a transversal horizontal orientation from the surface of the hull and which from about L/2 rotate gradually downward 90 degrees into a vertical orientation so that the bulge (902) at the transom stern (100) lies below the sloping plane (200) and along the outer edges of the sloping plane, but within the maximum beam B and above the base plane (400).