Hull Resistance Calculator

Calculate hull frictional and wave-making resistance using Holtrop method estimates

Input Parameters

Results

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Total Resistance
lb
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Effective HP
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Froude Number
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Residuary Resistance
lb

Reference

Froude Number Fn = V/√(gL) Frictional: Rf = ½ρV²S×Cf (ITTC 1957) Residuary resistance increases sharply above Fn=0.4