Deck General · Freeboard & Load Lines

On the load line (Plimsoll) mark, the letters 'W' and 'S' indicate the maximum loading drafts for:

Explanation

The load line marks denote seasonal/zone limits: S (Summer), W (Winter), WNA (Winter North Atlantic), T (Tropical), F (Fresh), and TF (Tropical Fresh). Each sets the maximum allowable draft.

Authority: International Convention on Load Lines 1966

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