Patent ID: 7070468

Claim:
A watercraft comprising: a first hull that is buoyant in water; a second hull that is buoyant in water; a third hull that is buoyant in water; a fourth hull that is buoyant in water; a first propeller shaft that extends from a first end of said first hull towards said second hull, wherein said first end of said first hull is the only end of said first hull from which any propeller shaft extends; a second propeller shaft that extends from a first end of said second hull towards said first hull, wherein said first end of said second hull is the only end of said second hull from which any propeller shaft extends; a third propeller shaft that extends from said a first end of said third hull towards said fourth hull, wherein said first end of said third hull is the only end of said third hull from which any propeller shaft extends; a fourth propeller shaft that extends from a first end of said fourth hull towards said third hull, wherein said first end of said fourth hull is the only end of said fourth hull from which any propeller shaft extends; and a superstructure connected to said first hull, said second hull, said third hull, and said fourth hull; wherein said first hull, said second hull, said third hull, and said fourth hull provide substantially all of the buoyancy of said watercraft.