Parallel Ruler 38cm (15″)
€27.78
The Parallel Ruler 38cm (15″) is a practical marine navigation tool designed for plotting courses and determining bearings on nautical charts.
Its parallel movement allows the ruler to be moved across a chart while maintaining the same direction, making it ideal for navigation work onboard yachts, sailing boats and other vessels.
In stock
The Parallel Ruler 38cm (15″) is designed for traditional nautical chart work, allowing navigators to transfer course lines across a chart while keeping the ruler sections parallel.
The two connected sections move in a controlled parallel action, making it easier to transfer a plotted course toward a meridian of longitude and determine the corresponding bearing.
An integrated degree scale assists with reading directions from 0° to 360°, allowing the ruler to be used for both course plotting and bearing calculations.
Technical Details
- Product Type: Parallel ruler
- Length: 38 cm
- Length in Inches: 15″
- Use: Nautical chart navigation
- Application: Course plotting and bearing measurement
- Degree Scale: Yes
- Suitable for: Nautical charts
- Ideal for: Yachts, sailing boats and marine vessels
- Category: Marine navigation instrument




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