This is the moulded depth, as measured amidships, from the top of the keel to the top of the freeboard deck beams at side, plus the thickness of the stringer plate if no wooden deck is fitted. If a wooden deck is fitted: D = Moulded depth + (T(L - S)) L where T = the mean thickness of the exposed deck clear of deck openings L = the freeboard length S = total length of superstructures.
Obu bubunzulu obulinganisiweyo, njengoko kulinganiswe ezinqanaweni, ukusuka kwisiseko senqanawe ukuya kumhla okanye umphezulu imiqadi yomgangatho ophezulu ecaleni, kunye nobubanzi bepleyiti yokuxhoma ukuba akusetyenziswanga mgangatho wamaplanga. Ukuba ufakelwe umgangatho weplanga: D = ubunzulu obulinganisiweyo + (T(L - S)) L Apho T = ukutyeba komgangatho ovelisiweyo okanye iindawo ezivulekileyo zomgangatho L = ubude bomgangatho S = bubonke ubude besakhiwo