Chartwork on ships - DR and fix position, effects of wind and current, set and drift

This video explains the basic terms used in chartwork on ships. The focus is on the terms of dead reckoning, fix, leeway, set, drft, and rate. The symbols and what they stand for is explained as well. Previous video on chartwork explained the information available from a paper chart. The link is provided: https://www.youtube.com/watch?v=L4L6wihfaIc&t=19s