The essential feature of the manoeuvre is that the ship should pass exactly through the pre-determined turning-point on approximately the course for which that turning-point has been calculated.
Xa isiseko sesimo somphambo kangangokuba inqanawa kufuneka igqithe phakathi kochazelo lwenqanaba lojiko oluqikelelwa kwindlela ethi ibenenqanaba lojiko oluthi lube lubaliwe.