Patent ID: 7849809

Claim:
A mono-hull yacht having a hull and an adjustable ballast assembly, said ballast assembly comprising a ballast, said ballast being mounted to said hull below the waterline thereof for movement transversely of and through said hull and between opposite end positions in which at least part of said ballast is located laterally outwardly of said hull respectively, the center of gravity of said ballast in said opposite end positions being located outwardly of opposite sides of said hull, and elongated ballast guide means for guiding said transverse movement of the ballast, said elongated guide means comprising a first inner elongated hollow guide member and a second outer elongated hollow guide member, said second outer elongated guide member being located at least partly within said hull and extending transversely thereof, said ballast being located within said first inner elongated hollow guide member, said first inner elongated hollow guide member extending longitudinally of and being located within the second guide member for longitudinal movement relative thereto, and a first adjustment mechanism for selectively moving said first inner elongated hollow guide member in opposite directions longitudinally of said second guide member whereby said first inner elongated hollow guide member can project telescopically outwardly of opposite ends of the second guide member and a second adjustment mechanism for selectively moving said ballast in said first inner elongated hollow guide member between said opposite end positions.