Leeway « Back to Glossary IndexSideways action of wind on the vessel Related content: Plotting positions (Trial)Understanding the impact wind and tide will have on your vessel allows you to consider your progress over a chart and make informed decisions. Learn how to plot positions using paper and electronic charts. Approximately 5 hoursPlotting PositionsUnderstanding the impact wind and tide will have on your vessel allows you to consider your progress over a chart and make informed decisions. Learn how to plot positions using paper and electronic charts. Approximately 5 hoursDead Reckoning