Patent ID: 7814854

Claim:
Device ( 1 ) for transforming a monohull vessel ( 2 ) into a multihull vessel, comprising: a support structure ( 3 ) that is provided to be attached in a removable manner to the vessel ( 2 ), whereby the support structure ( 3 ) has a geometric axis AA′ which, when the structure ( 3 ) is in a multihull configuration position, is horizontal or approximately horizontal, and when projected in the horizontal plane, has an angle of more than 30 degrees with a horizontal geometric axis that is secant to the support structure and that is contained in the longitudinal vertical geometric plane (PP′) that contains a keel line of the vessel ( 2 ), and at least one lateral float ( 4 ) that has a longitudinal axis (FF′) that is contained in the geometric plane that contains the keel line, whereby said float ( 4 ) is made integral with this support structure in an articulated manner around at least one geometric axis (BB′) that is secant and oblique to the axis (AA′), and whereby, by the longitudinal geometric axis (FF′), said float ( 4 ) can occupy a first deployed stable position along which the float is parallel to the geometric plane (PP′) of the vessel ( 2 ), and, by the lowest point of the keel line, the float is placed under the geometric axis (BB′), and a second folded stable position that is separated from the preceding position at an angle, wherein the axis (AA′) is perpendicular to the geometric plane (PP′) of the vessel ( 2 ) and, when projected into the horizontal plane, the geometric axis (BB′) and the geometric axis (AA′) form an angle that is equal or approximately equal to 45 degrees, and the geometric axis (BB′) and the geometric axis (FF′) in the deployed position of the float ( 4 ) form an angle that is equal or approximately equal to 45 degrees.