The resulting delays could then be looked up on a navigational chart.

If you love messing about on water, but dislike cramped conditions, locks and complex navigational charts, consider hiring a houseboat.

Nautical charting may take the form of charts printed on paper or computerised electronic navigational charts.

She plotted backup navigational charts for astronauts in case of electronic failures.

This provided the expeditionary commanders with the necessary navigational charts for their voyages.