Patent ID: 7234409

Claim:
A combination of a vessel and at least a wind turbine base transportable by the vessel, wherein the vessel has a loading space sized for receiving said wind turbine base, which wind turbine base is in an upright position corresponding to an upright operating position of said wind turbine base during placement on said loading space, said vessel having means for displacing said wind turbine base from the loading space to an unloading position, said vessel having winches with at least three flexible lines with associated fastening means arranged for mounting on at least three lifting points on said wind turbine base, which flexible lines are arranged at the unloading position so that their sections, when extending down to said lifting points on said wind turbine base at said unloading position, are spaced apart in the horizontal direction, and wherein a ballast condition of the wind turbine base is variable for adjustment at said unloading position.