The initial high degree of specialisation has been followed by an increasing trend towards combination ships suitable for the carriage of several different types of cargo, this even though the cost of carrying cargoes in the more universal ship is higher than in the specialised ship.
Iqondo eliphezulu lwencutshe lulandelwe kukunyuka kwentsingiselo ukuya kudityaniso lweenqawa ezilungele ukuthwala iindidi eziliqela zemithwalo eyahlukileyo, nangona ixabiso lokuthwala imithwalo kuwonke-wonke wenqanawa lingaphezulu kuneencutshe zeenqanawa.