When looking at these figures it is, of course, necessary to bear in mind that a normal displacement ship, no matter how large, does not have to expend a single kilowatt in lift or buoyancy, which it obtains free of charge.
Xa sijonge lamanani ngenene, kuyimfuneko ukuba sibeke ezingqondweni ukuba ushenxiso lwenqanawa oluqhelekileyo,nokuba lukhulu kangakanani na alunakho ukuchitha umlinganiso wamandla ombane omnye ngomnye ngenxa yonyuso okanye ukudlamka,ekufumana mahala.