Even before the first container ships of the fourth generation - that is to say ships for the carriage of more than 3,000 containers - have entered service research and development work aimed at still larger container ships has been started.
Nangaphambili kwezikhongozeli nqanawa zesizukulwana sesine, oko kukuthi iinqanawa zokuthatha ngaphezu kwamawaka amathathu ezikhongozeli ziqale umsebenzi wokuphenya kwakunye nomsebenzi wokuphuhlisa obhekiselele kwakhona kwinqanawa zikhongozeli ezinkulu uqalile.