| 摘要 |
The invention aims at ensuring that a catamaran reaches as early as possible a gliding phase. Therefor, the hulls (1) of the inventive catamaran are characterized by a planar bottom surface. Moreover, they are placed at the corners of trapezoid side-members (2) by being inclined inwards by about 10 degrees so that they penetrate the water obliquely through their narrow internal sides when moving at low speed thereby offering little resistance to the water (fig. 1). On the other hand, when there is a stronger wind and the catamaran is listing, the leeward hull is located horizontally on the surface of the water, while the windward hull is up in the air like in standard listing catamarans (fig. 2). In said horizontal position, the leeward hull produces the maximum hydrodynamic vertical thrust, which allows it, as from a certain basic speed, to shift rapidly to a gliding phase. The shocks generated when the catamaran glides at high speed, produced upon impact of the hulls on the surface of the waves, are dampened by shock absorbers (3) located beneath the corners of the trapezoid side-members, allowing the catamaran to glide without bumping. |
