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STCW - Minimum Safe Manning

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Minimum safe-manning guidance per IMO Res. A.1047(27) - screening check against typical number of officers, ratings, and deck/engine department.

Formula

$$ n_{crew} = f(GT, P_{ME}, \text{trade}) $$

Symbol legend

SymbolMeaningUnitSource
$GT$Gross Tonnage-tonnage certificate
$P_{ME}$Main engine powerkWnameplate

Sources

  • IMO A.1047(27).