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Understanding and calculating marine displacement is essential for the design and operation of ships. This tutorial delves into the formulas and calculations associated with marine displacement, focusing on length, breadth, draft, and block coefficient.
2 wrz 2019 · A rough estimate of horsepower for displacement type hulls is fairly simple: 1. Maximum "hull speed", in knots, is equal to about 1.3 X the square root of the waterline length of the hull in feet.
17 mar 2022 · Quick and very approximate numbers for displacement craft. Displacement speed (knots) = 1.2 * SQRT( Length Waterline (Feet)) At that speed normal propulsion is about one horsepower per ton of displacement. The power number here can be +/- 50%, but clearly far less power than your calculation.
19 cze 2011 · The range of 3 to 4hp per ton is a (very) rough starting point - if you have more details I'll run them through the calculator for you. (need displacement, o/l, wll, hull shape, number of shafts etc.)
14 lis 2006 · The usual calculation for displacement is determined by the areas of underwater sections (normally divided into 10 equal sections along the waterline length.) These numbers are punched into a formula called Simpsons Rule (just google it) which has long been the method for displacement calculation.
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.
This calculator is free to use as often as you wish. The calculations and results are based on imperical data and formulas. The results are only as acurate as the data you enter. The calculated propeller sizes are based on standard propeller designs; 2 blade = 30% blade area ratio. 3 blade = 50% blade area ratio. 4 blade = 69% blade area ratio.
