Holtrop - Wave Resistance Estimate

Approximate wave-making resistance R_W at low Froude (Fn < 0.4) using Holtrop's regression simplification - the dominant resistance contribution in the hump region.

HoltropWave resistanceFroude

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

R_W \approx c_W(F_n, C_B) \cdot \Delta \cdot g

Symbol	Meaning	Unit
$F_n$	Froude number
$c_W$	Wave resistance coefficient

Source: Holtrop & Mennen - Int. Shipbuilding 1982

In short

Approximate wave-making resistance R_W at low Froude (Fn < 0.

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