Patent ID: 7789030

Claim:
A vessel ( 1 ), comprising: a hull ( 2 ) with a stern ( 5 ), bow ( 7 ) and bottom ( 3 ) and a longitudinal axis ( 20 ); an air cavity ( 6 ) formed at the bottom ( 3 ) of the hull ( 2 ), the air cavity ( 6 ) comprising a cavity top surface ( 27 ), a front wall ( 28 ) and a front section ( 10 ) located nearest to the bow ( 7 ); a mechanical air supply means ( 35 ); an air inlet ( 8 ) located in the air cavity ( 6 ) connected to the air supply means ( 35 ) to mechanically provide air to the air cavity; and a wave deflector ( 9 ) defining a lower surface ( 12 ) and a water side ( 11 ), the wave deflector ( 9 ) situated in the front section ( 10 ) of the air cavity ( 6 ) and at a distance from the cavity top surface ( 27 ) and extending from the front wall ( 28 ) to a side ( 14 ) substantially in the direction of the stern ( 5 ), wherein, the front wall ( 28 ) comprises a height (H 1 ) measured from the cavity top surface ( 27 ) in a direction perpendicular to said top surface, the wave deflector comprises a thickness (H 2 ) between the lower surface ( 12 ) and the water side ( 11 ) measured in the direction perpendicular to said top surface ( 27 ), the wave deflector thickness (H 2 ) is substantially between 0.2-0.5 the front wall height (H 1 ), and cross sections of the wave deflector ( 9 ) in the direction of the longitudinal axis ( 20 ) of the vessel ( 1 ) are substantially box-shaped, the wave deflector ( 9 ) being with a connection side connected to the front wall ( 28 ), the side ( 14 ) being a free side, and the water side ( 11 ) of the wave deflector ( 9 ) is situated substantially at the height of the bottom ( 3 ).