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Broaching Risk in Following Seas

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Broaching-to risk rises when wave celerity c exceeds 1.8·V_ship AND wave length is 1–3 × LBP.

Formula

$$ c = \sqrt{\tfrac{g \lambda}{2\pi}} $$

Symbol legend

SymbolMeaningUnitSource
$c$Deep-water wave celeritym/sderived
$λ$Wave lengthminput
$V$Ship speedm/sderived

Sources

  • IMO MSC.1/Circ.1228.