Depth for Freeboard (D)

Depth for freeboard (D)
(a) The depth for freeboard (D) is the moulded depth amidships, plus the freeboard deck thickness at side.
(b) The depth for freeboard (D) in a ship having a rounded gunwale with a radius greater than 4% of the breadth (B) or having topsides of unusual form is the depth for freeboard of a ship having a midship section with vertical topsides and with the same round of beam and area of topside section equal to that provided by the actual midship section.
<Chapter I, regulation 3>.

Source: IMO Resolution MSC.143(77), amendments to Annex B to the 1988 Load Lines Protocol, 5 June 2003, International Maritime Organization. Legislation

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