Patent ID: 8096252

Claim:
A ship hull structure comprising: a main hull having a stern portion; a movable rearbody having a rear end, and being pivotably connected with said stern portion of said main hull such that said movable rearbody is capable of moving up-and-down freely with respect to said main hull; a lifting device disposed on said stern portion of said main hull, and being configured and arranged to adjust a height of said rear end of said movable rearbody from a waterline and a pivot angle of said movable rearbody relative to said main hull; a power device comprising at least one engine; and a corresponding propeller, said power device and said corresponding propeller being provided on said movable rearbody, wherein a stern portion of said main hull forms a cavity portion extending from a stern to a bow and receiving said movable rearbody, said movable rearbody is connected to said main hull by a hinge coupling device so as to pivot up-and-down freely in said cavity portion with respect to said main hull, and an upper part of said cavity portion includes a deck extending from said main hull to partly or fully cover said movable rearbody.