It is of interest to note that if there is a cross current or tidal stream the wakes of the ships in a column do not give a true indication of the tracks made good over the ground.
Oku kungomdla obekiweyo wokuba ukuba apho kukho unqumlo phakathi okanye ukurhoxa kolwandle ukuvuka kwenqanawa kuluhlu akuniki kubonisa kukuko okanye kuyinyani ekulandeleni umkhondo owenziwe walungela ukuphindwa komhlaba.