Module 8 - Drawing Instruments

Essential Plotting Instruments

Accurate chartwork requires proper instruments. The three essentials are: parallel rulers (or a proprietary plotter like a Breton plotter or Portland plotter), dividers, and a sharp pencil with a rubber. Everything plotted on the chart should be in pencil so it can be erased and the chart reused.

  • Parallel rulers or proprietary plotter (Breton/Portland)
  • Dividers for measuring distance
  • Sharp pencil (2B or HB) and rubber
  • Always plot in pencil — charts are reusable

Continue studying Drawing Instruments

This public lesson is part of Revision Module 8. Full revision access adds the guided Learn, Practise and Test flow, flashcards and revision progress.