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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:
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight.
28 kwi 2015 · 1. The Displacement/Length ratio. The equation for working this out is: D / L = Displacement in lb/ (0.01 x Waterline length in ft) 3. Alternatively, you can search online for a ‘displacement length calculator’ and input your yacht’s stats – use imperial or metric, whichever is specified, and be consistent.
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.
The sail area-displacement ratio ( SA/D) is a calculation used to express how much sail a boat carries relative to its weight. [1] In the first equation, the denominator in pounds is divided by 64 to convert it to cubic feet (because 1 cubic foot of salt water weights 64 pounds).
30 sie 2022 · This article will discuss the methods of calculating the sail area-displacement ratio, what it tells us about a boat’s performance, how it can be used to compare and categorize different boats, and some of its potential shortcomings.
The prismatic coefficient is the ratio of actual underbody volume to the volume of a prism having a length equal to the DWL, and a section equal to the boat's maximum sectional area. The prismatic coefficient provides an indication of the distribution of displacement.
