A vessel gathers way when she begins to move through the water, and she has steerage way when her speed is sufficient for steering (i.e. the rudder is effective).
Kuthiwe isikhitshane siqokelela amanella xa sihamba phezu kwamanzi kwaye sihambe nejesentye esifunekayo ukuze sibe nokulawuleka coko kukuthi iphini lokusiqhuba liyasebenza.