The invention relates to marine construction technology, in particular to the production of marine hulls and to a high-speed marine hull, comprising a main central float (1) and two lateral floats (2) of shorter length, arranged towards the rear of the central float (1) and connected thereto by means of connecting arms (5). The undersides of the three floats (1, 2) are always immersed, whatever the speed. The connecting arms (5) are streamlined with the form of aeroplane wings, such as to form two channels (6) with a ground effect between the exposed lateral internal surfaces of the central float (1) and the lateral floats (2) and the surface of the liquid (71) across which said hull is moving. According to the invention, the upper surfaces of said arms comprise perforations (20) and a means (21) for intake of air, which permits an intake of air through said perforations from the outside to the inside of said connecting arms (5).
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