Day Skipper training module 10 of 17
Course to steer, position fixing, waypoints, dead reckoning, and estimated position.
You are preparing a real trip where your understanding of course to steer shapes the decision. Use this module to explain the cue, the risk, and the next safe action before you move on.
7 lesson sections · 15 quiz questions · 12 flashcards
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Chartwork is the practical skill of plotting courses, fixing positions, and working out navigational problems on a nautical chart. It is the core of Day Skipper navigation and forms the b...
Dead Reckoning (DR) is the process of estimating your position based solely on your course steered and distance run through the water — without accounting for tidal stream or leeway. It g...
A fix is a position determined from observations — it is more reliable than a DR or EP. Common methods include: visual bearings (take compass bearings of two or three charted objects and...
The course to steer is the compass course you need to follow to make good a desired ground track, after allowing for tidal stream, leeway, and compass errors. It involves constructing a v...
Worked EP example: start from a fix at 1000. You steer 090 degrees true for one hour at 5 knots, so the DR is 5.0 M due east of the fix. The tidal stream during the hour sets 180 degrees...
A waypoint is a position defined by latitude and longitude, used to mark turning points or destinations on a passage. Modern GPS and chart plotters navigate between waypoints and display...
Leeway is the sideways drift caused by wind pushing the boat off course. A yacht sailing in strong winds will make leeway — the boat slides sideways to leeward. The amount depends on wind...
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