| 摘要 |
1. Boat equipped with three semi-submersible floats (3-6; 5-8) connected to a deck (1, 2) via strut members (6; 8), one central float (3-6) being provided at the fore part of the boat and two side floats (5-8) being positioned symmetrically with respect to the longitudinal plane (S) of said central float, boat characterized in that a) the ratio of the ordinate (AI) of the curve of the areas (A1) of the boat at the crossing point (I) of the curves of the areas (A5) of the side float, on the one hand, and of the areas (A3) of the central float, on the other hand, to the maximum ordinate (AM1) of said curve of the areas (A1) of the boat is at least equal to 0.45 ; and b) the ratio of the sum of the volumes of the side floats combined, on the one hand, and of the volume of the central float, on the other hand, is between 0.3 and 1.7. |
