Navigation triangles
Navigation triangles are a specialized subcategory of navigation accessories. Here you’ll find course and mooring triangles for traditional chart work—ideal for boat license training (e.g., SBF See), exam preparation, and practical onboard use in recreational and commercial boating. Navigation triangles help plot courses, transfer bearings, determine position, and ensure precise work on paper nautical charts.
Our selection (subject to availability) includes brands such as L’Ocean and Ecobra. Brand names remain unchanged—important for consistent scales, material quality, and familiar handling in both training and practice.
Choose the size and model that best suits your chart format, working style, and application: On the chart table, flatness and readability are key; while underway on board, sturdy edges and a stable surface are important. This helps you avoid measurement errors and work faster—especially with training charts, exam tasks, and in everyday navigation.
- Size & Handling: 25 cm is compact and ideal for training/on the go; 32 cm offers more surface area and often allows for more comfortable work at the chart table.
- Readability: Clear degree scales, clean lines, non-slip material, and sharp edges help prevent the chart from “slipping.”
- Practical use: stable positioning, quick parallel shifting (with two triangles), sturdy storage in a folder or bag.
- Add-on: Combined with a compass and pencil, this creates a complete set for navigation and training.
Examples from the range: Ecobra large protractor 32 cm; Ecobra small protractor 25 cm; Ecobra large course triangle 32 cm; Ecobra small course triangle 25 cm.
FAQ
Which navigation triangles do I need for training (e.g., SBF Lake) and onboard use?
For training and exam preparation, a pair of triangles (e.g., two course triangles or a course and approach triangle) plus a compass is usually sufficient. With these, you can plot courses, shift lines parallel to each other, and construct positions accurately. For onboard use, sturdy triangles with a clearly legible scale and stable edges are particularly practical.
25 cm or 32 cm – which size is better?
25 cm is compact, easy to store, and ideal for training folders, small chart tables, or on the go. 32 cm offers more contact surface, often lies more securely on the chart, and can be more comfortable for plotting or parallel shifting—especially with larger nautical charts and during extended work sessions.
Course triangle vs. bearing triangle – what’s the difference?
Both are triangles with degree scales, but differ in shape and scale layout depending on the model. Course triangles are designed for plotting and transferring courses and bearings; drawing triangles are frequently used for neatly drawing, tracing, and transferring lines. In practice, many sailors work with a pair of triangles because they allow lines to be shifted parallel quickly and cleanly.
How can I tell if a set square is of good quality (readability, flatness, precision)?
Look for clearly printed scales, clean edges, a surface that isn’t too slippery, and a triangle shape that lies flat. The less the triangle “wobbles” or slips, the more precise course and position constructions will be. For night or low-light situations, high-contrast scales and clean line markings are helpful.
What kind of “compatibility” is important for navigation triangles?
With triangles, it’s not about connections, but about working compatibility: a size that fits your map format and folder, scales (degrees) that are easy to read, and ideally a set that matches your compass and your working style. If you use specific models during training, it makes sense to stick with the same logic/scale for exams and onboard use.
How do I care for and store navigation triangles so they stay clean for a long time?
Remove salt/dirt with a soft, slightly damp cloth and then store them in a dry place—preferably in a folder or pouch so the edges aren’t damaged. Avoid intense heat (warping) and heavy objects on top of them. This keeps the scales easy to read and the edges precise.
Common mistakes when working with triangles—and how do I avoid them?
Common mistakes include the triangles slipping during surveying, misreading the scale, or working on an uneven surface. Use a smooth surface, secure the map if necessary, and quickly check that the zero/degree orientation is correct before drawing lines. A pair of triangles helps to align courses neatly without having to slide them back and forth.
Kontor: 034322 44257 (Mo.- Fr. 7h - 13h)
Whats App: 0151 72348288
E-Mail: info@js-maritimshop.de
JS Maritimshop & Bootsservice © 2026 | Template © 2009-2026 by modified eCommerce Shopsoftware
