Multihull stepped planing boat with multiple independent elastic planing surfaces

A multihull stepped planing boat with multiple independent elastic planing surfaces, comprising:

• a main hull (100), X front planing sub-hulls (200) arranged side by side under a front portion of the main hull (100), and Y rear planing sub-hull (300) arranged side by side under a rear portion of the main hull (100);
• wherein X and Y are positive integers, and 3≤X+Y≤8;
• the X front planing sub-hulls (200) are equally spaced, and the Y rear planing sub-hulls (300) are also equally spaced;
• there is a gap between the X front planing sub-hulls (200) and the Y rear planing sub-hulls (300);
• front planing surfaces (210), which are in contact with a water surface, are provided at bottoms of the front planing sub-hulls (200);
• and rear planing surfaces (310), which are in contact with the water surface, are provided at bottoms of the rear planing sub-hulls (300);
• the front planing surfaces (210) and the rear planing surfaces (310) are parallel to each other;
• the X front planing surfaces (210) are set at a same height, and the Y rear planing surfaces (310) are set at another same height;
• there is a height difference H between the front planing surfaces (210) and the rear planing surfaces (310), so as to form a step of the planing boat;
• left and right sides of front portions on top surfaces of the front planing sub-hulls (200) and the rear planing sub-hulls (300) are connected to a bottom of the main hull (100) through hinge structures (400);
• the hinge structures (400) of the front planing sub-hulls (200) are located on a same transverse axis, and the hinge structures (400) of the rear planing sub-hulls (300) are located on another same transverse axis;
• rear portions on the top surfaces of the front planing sub-hulls (200) and the rear planing sub-hulls (300) are connected to the bottom of the main hull (100) through elastic shock absorption structures (500) which are vertically arranged;
• the front planing surfaces (210) and the rear planing surfaces (310) are flat surfaces, which form a longitudinal angle A with a horizontal plane, and the longitudinal angle A ranges from 1-10°.