Patent ID: 6539888
Filing Date: 2003-04-01
Classification: B63B

Abstract:
A working ship for transport on a water surface and carrying out of off-shore operations at a working site on a water surface, the working ship comprising a single hull and a deck, said hull forming a floating body and being provided with driving means, said deck being located at all times during transport and at a working site above the water surface, said hull being temporarily submersible during off-shore operations, and said deck being connected to the hull by using connecting means at an adjustable intermediate distance so that the working ship is adjustable between a floating position in which the deck is located above the water surface and near the hull and a semi-submerged position in which the hull is located substantially below the water surface and the deck is located above the water surface at a distance from the hull, wherein the hull is of elongate shape, having a length to width ratio of more than 3:1.