Search results
The primary formula used to calculate the displacement of a ship is based on its physical dimensions and block coefficient. The block coefficient is a dimensionless number that describes how closely the shape of a ship resembles a rectangular block. Displacement = Length × Breadth × Draft × Block Coefficient. Where:
Calculation. Shipboard stability computer programs can be used to calculate a vessel's displacement. The process of determining a vessel's displacement begins with measuring its draft. [3] . This is accomplished by means of its "draft marks".
DISPLACEMENT: Literally taken, displacement refers to the cubic feet or cubic meters of water that are "displaced" when the vessel floats. For a given weight, the amount of water that is displaced in order to float the vessel will vary according to the salinity or density of the water.
By Archimedes' principle, displacement mass is equal to displacement volume multiplied by the density of the water (nominally 1000 kg/m 3 or 62.4 lb/ft 3 for fresh water, 1025 kg/m 3 or 64 lb/ft 3 for seawater). This is the figure that should be used for all performance ratios and comparisons.
The Capsize Screening Formula. CSF = 3 √(Bm/D) Where Bm is the maximum beam in feet, and D is displacement in cubic feet.
17 paź 2019 · The displacement to length ratio of a boat is a good comparing parameter for most boats. It is usually referred to sailing boats and it is also seen with the symbol D/L. Basically it shows how heavy the boat is in comparison to the waterline length.
It is calculated by dividing a boat's displacement in long tons (2,240 pounds) by the cube of one one-hundredth of the waterline length (in feet): [3] DLR can be used to compare the relative mass of various boats no matter what their length.
