Skip to main content Skip to search Skip to main navigation

The three-arm transporter, also called a double protractor, has a degree scale with one fixed and two movable arms. It is used to determine positions in coastal navigation. Two angles are measured between three landmarks. From these angles, the searched location follows by moving the three-arm transporter with the measured angles on the map until the arms intersect the landmarks. The searched position appears in the centre of the degree disc.

Skip product gallery

Similar Items

Rulers
Rulers

Regular price: From €8.70
Protractor triangles
Protractor triangles

Regular price: From €11.00
Parallel rulers
Parallel rulers

Regular price: From €30.50
Square course plotter
Square course plotter

Regular price: From €27.00
Clear triangles
Clear triangles

Regular price: From €8.70
One-arm protractor
One-arm protractor

Regular price: €57.12

Cassens & Plath Newsletter

Stay up-to-date with our newsletter: New products, exclusive specials and trends.

Privacy
By selecting continue you confirm that you have read our and accepted our .

You can unsubscribe from the newsletter at any time free of charge.

Loading...
Upload in progress, please be patient ...