Articulated self-propelled boat trailer and tug

An articulated self-propelled boat trailer and tug comprising:

• (a) a trailer, wherein said trailer comprises, a laterally opposed pair of generally parallel spaced apart longitudinally extending hull supporting members having first and second ends,
• a corresponding laterally opposed pair of first translation means mounted to and disposed a first vertical distance beneath said laterally opposed pair of longitudinally extending hull supporting members generally in proximity to said first end, said hull supporting members pivotable about a laterally extending axis through said laterally opposed pair of first translation means,
• independently actuable elevation means, for selectively elevating said longitudinally extending hull supporting members relative to said laterally opposed pair of first translation means, said independently actuable elevation means mounted to said laterally opposed pair of longitudinally extending hull supporting members, whereby said first vertical distance may be selectively varied,
• said laterally opposed pair of generally parallel spaced apart longitudinally extending hull supporting members rigidly mounted at their second ends to cross members, rigidly mounting said second ends to a first side of a universal articulatable joint having three rotational degrees of freedom,
• (b) a self-propelled tug mounted to a second longitudinally opposed side of said universal articulatable joint,
• (c) means for independently and selectively pivoting said trailer and said tug relative to each other about each of said three rotational degrees of freedom, said means for independently and selectively pivoting said trailer and tug relative to each other mounted to said universal articulatable joint.
• wherein said tug further comprises a laterally opposed pair of second translation means for selectively self-propelled translation of said tug and said trailer, said tug pivotable about a laterally extending axis through said laterally opposed pair of second translation means, each of said laterally opposed pair of second translation means selectively pivotable by steering means about a corresponding vertical axis through said second translation means independent of said pivoting of said trailer and said tug relative to each other about each of said three rotational degrees of freedom and independent of said elevation means.