OFFSHORE CRANE WITH A SELF-PROPULSION DEVICE AND AN ARRANGEMENT STRUCTURE OF THE SELF-PROPULSION DEVICE CAPABLE OF ARRANGING A POD OR AN AZIMUTH PROPELLER AT THE OPTIMAL POSITION

摘要

PURPOSE: An offshore crane with a self-propulsion device and an arrangement structure of the self-propulsion device are provided to overcome the limit of draft or the loss of buoyancy that an offshore crane hull has.;CONSTITUTION: An arrangement structure of self-propulsion devices(200) for an offshore crane(100) arranges the self-propulsion devices. The offshore crane comprises a hull(110) floating on the sea and a boom lifting weight with a wire rope(130). The self-propulsion devices are arranged at four or more edge parts of the hull.;COPYRIGHT KIPO 2013