One of the imperative requirements for sailors to be advanced to the higher rank, is that they must have undergone the formative training at the level required for the next higher rank.
Enye yezinto ezinyanzelekileyo kwimfuno zabo, kukucebisa ngamathuba omsebenzi ophezulu, kulapho kunyanzeleka babephantsi kuqeqesho oluzakufuneka koku kulandelayo kumsebenzi ophezulu.