Module 10 - Chartwork
What Is Chartwork?
Day Skipper chartwork combines a suitable current chart with bearings, positions, speed, time, tidal stream and depth information. The RYA course scope includes chartwork, position fixing and plotting a course to steer because these skills support decisions aboard a small vessel in familiar waters.
Begin with source control: confirm the chart or display covers the area at a useful scale, read its datum and notes, and check the edition or update status. Then define the question before drawing. Work in true directions on the chart unless the exercise explicitly asks for magnetic or compass, keep units visible, and label every position or vector with its time and meaning.
Finish by asking whether the answer is operationally safe. Check the route against hazards, depth, clearance, traffic and the assumptions behind the plot. A precise-looking line can still be wrong because the source, feature, time, unit or correction was wrong. Training-chart examples in this module are fictional and must never be used for navigation.
- Check chart, scale, datum, notes and update status before plotting
- State whether each direction is true, magnetic or compass
- Label positions, vectors, times and units
- Separate observed evidence from estimated movement
- Check the result against hazards and another source of information where available
Optional quick check
Section 1 of 7
Which feature makes a chartwork answer most useful to the skipper?
Continue studying Chartwork
This public lesson is part of Revision Module 10. Full revision access adds the guided Learn, Practise and Test flow, flashcards and revision progress.