An increase in the length of a ship from 300 metres to 400 metres will enable the maximum speed to be increased by 6 knots, for example, but at the same time, in the case of container ships, would result in an increase in deadweight from about 40,000 tons to 70,000 tons.
Ukunyuka kubude benqanawa ukusuka kumakhulu amathathu eemitha ukuya kwamane amakhulu eemitha kuya kunceda isantya esiqingqiweyo ukuba sinyuswe ngesithandathu somlinganiselo wesantya senqanawa, umzekelo, kodwa ngaxeshanye, kwinqanawa ezizizikhongozeli, inganeziphumo zokuba kunyuswe ubunzima ukusuka kumawaka angamashumi amane eetoni ukuya kumashumi asixhenxe eetoni.