The selection of the main scale and hull parameters of FRP fishing boats generally focuses on the best performance, low construction cost, maximum payload, low cost of use, comfort, etc.
If you want to design a FRP fishing boat with excellent performance and comfort, the general customer has their own ideas, and even has their own design sketches, on the one hand, they hope to increase the usable area as much as possible, on the other hand, they do not want to increase the cost, this kind of fish and bear's paw want to have both the mood can be understood, but the design space is relatively small, if you can choose the design parameters according to the best performance is of course the most ideal, but in fact, the customer's needs are often not the best match for the aspect ratio, but no matter what, It is a must for designers to have a good understanding of the impact of the main dimensions and parameters of the fishing vessel on performance.
1. Main scale and displacementOverall length of hull (m);
Hull length (m);
The stationary waterline length of a fishing vessel at full load displacement is often regarded as the design waterline length (m);
Side projection line length (m);
Longitudinal position of the ship's center of gravity, maximum width of the hull (m);
Hull Width (m);
Maximum width of the portion(m);
Draught of the hull with full load displacement (m);
Maximum draft (m);
Depth of hull (excluding medium keel) (m);
Freeboard height, vertical height from the design waterline to the broadside line (m);
Maximum width of the stationary waterline of the fishing vessel at full load displacement (m);
Light load displacement (kg);
Full load displacement, often regarded as design displacement (kg);
Full load displacement volume (m);
Maximum underwater profile area (m);
Draft of amidships (m);
Stern width (m);
Longitudinal position of the center of the projected area of the chamfered line and the stern line (from the stern) (m);
2. Scale coefficient and ship type parametersHull length-to-width ratio；
The aspect ratio of the waterline；
Minister width ratio；
Relative position coefficient of the center of gravity；
The oblique rise angle of the abandonment；
The oblique rise angle of the stern plate；
Lean length factor；
Area load factor；
Underwater area coefficient of the stern；
Longitudinal prismatic coefficient.
