Navigation sets

For training and the exam, a complete training set with a compass and parallel ruler or protractors and a clear case—such as the L’Ocean SBF Sea Training Set—has proven effective. Look for clean scales, precise tips, and a smooth, wobble-free joint. 25 cm sets are often a good standard because they are easy to handle on training charts.

Important factors include accuracy (no play in the joint, precise tips), readability (clear scales, good contrast), and flatness (rulers/triangles must not wobble). For intensive training and professional use, a more robust model is worth the investment, one that won’t “wear out” even after many navigation exercises.

Both work. A parallel ruler or plotter is very convenient if it glides smoothly and lies flat. Course triangles are compact, easy to store, and widely used in many courses and schools. The key factor is what you use during your training: If you practice with triangles in class, you’ll often feel most confident using them during the exam.

On board, durability and organization are key: a pouch or folder protects against moisture and ensures that the compass and ruler are quickly at hand. Look for non-slip handling and materials that can withstand occasional moisture and salt spray. For commercial shipping and frequent use, durable hinges, one-handed operation, and sturdy edges are particularly useful.

After contact with salt or moisture: wipe with a soft cloth, store in a dry place, and ideally transport in a folder or bag. Do not clean the hinges with harsh chemicals; if necessary, clean gently and keep them moving. This keeps scales legible and the mechanics precise.

Common causes include wobbly rulers or set squares, misaligned compass points, or imprecise placement. Work on a smooth surface, check the flatness of the paper before each task, and ensure the compass is set firmly. For clean results, it’s worth regularly practicing and automating the most important techniques (plotting a course, marking a distance).