Planing-type vessel comprising a front portion and a rear portion in the direction of movement of the structure, the front portion comprising two symmetrical skim hulls (18, 20) and the rear portion having a rear contact area (34) comprising at least one skim hull. The invention is characterized in that the front and rear hulls are disposed on either side of the centre of gravity of the structure along the longitudinal axis thereof. The rear contact area is thereby subjected to a load greater than that of the front hulls. The invention is also characterized in that the angle of attack of the hull body in relation to the water surface is positive regardless of speed.