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Holtrop - Form Factor 1+k1

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Form factor 1+k1 for frictional-resistance correction per Holtrop-Mennen regression - the first step in predicting still-water resistance from hull geometry.

Formula

$$ 1 + k_1 = 0.93 + 0.487118 \cdot c_{14} \cdot (B/L)^{1.06806} \cdot (0.95-C_P)^{-0.521448} $$

Symbol legend

SymbolMeaningUnitSource
$C_P$Prismatic coefficient-hydrostatics
$B/L$Breadth-length ratio-ship particulars

Sources

  • Holtrop J. - ISP 1984.