These two aims appear to be in conflict, since the primary way of reducing costs in shipbuilding is to build large numbers of similar ships instead of ships of individual and very differing designs.
Ezi njongo zimbini ziye zabonakala zingavumelani, ngenxa yokuba indlela yokuqala yokwehlisa amaxabiso ekwakhiweni kwenqanawa kukhwakha amanani amakhulu eenqanawa ezifanayo endaweni yeenqanawa zabantu kwakunye nokwakhiwa okwahlukileyo kakhulu.