Division 2.2.1 Navigation, medium-term ahead

Navigation, medium-term ahead, is the navigation phase in which the skipper observes and analyses the traffic situation looking some minutes up to an hour ahead and considers the possibilities of where to meet, pass or overtake other vessels.

The traffic image needed is the typical ‘looking around the corner’ feature and is mainly outside the scope of the on-board radar range.

The update rate is depending on the task and differs from the situation in which the vessel is involved.