Patent ID: 6345584
Filing Date: 2002-02-12
Classification: B63B

Abstract:
Hull for shipping with a mono-three-catamaran architecture comprising:a bow point (11; 110) connected to hull sides (14, 15; 140, 150) lying in vertical parallel planes symmetrically opposed to a center line (Xâ€”X) that ends at a stern (12; 120); a pair of chines (17, 18; 170, 180) disposed laterally to the center line (Xâ€”X), each chine (17, 18; 170, 180) defining a lower edge of said hull sides (14, 15; 140, 150), that begins at a desired cross section plane near the bow point (11; 110) under a waterline (19; 190) and thereafter defines a longitudinal line extending continually aftward to said stern (12; 120); a keel (13; 130), beginning near the bow point (11; 110) and extending along the center line (Xâ€”X) on the underside of the hull aftward for a length less than the distance between the bow point (11; 110) and the midship section (5; 05); a bottom (16; 160) extending laterally between said chines (17, 18; 170, 180), and between every chine (17, 18; 170, 180) and said keel (13; 130) where the keel (13; 130) is present; a surface of the bottom (16; 160) having cross section planes at right angles with the center line (Xâ€”X) forming convex bottom structures bridging a pair of inverted longitudinal bottom channels (26, 27; 260, 270) which extend laterally to said keel (13; 130); said pair of channels (26, 27; 260, 270) merging aft from said keel (13; 130) with a single bottom channel (28; 280) having a profile with channel sides which are increasingly slanted in the stern cross sections and become parallel to the hull sides in the stern (12; 120).