If the dredging craft are held at too fine an angle, the flow of water will be deflected along the side and bilges of the ship instead of scouring in underneath her bottom.
Ukuba inqwelo ehamba elwandle egutyulayo ingakwimibhobho, ukuhamba kwamanzi kuya kuphambukiselwa ngasecaleni nangakwimiphantsi yenqanawa endaweni yokuba akhuhle ngaphantsi komzantsi wayo.