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Parallel Ruler with Protractor Scale

Lalizas
71.0004
Out-of-Stock
€28.50
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The sturdy, acrylic, brass arms Parallel Ruler includes a protractor scale, is easy to use, and is a necessary tool for every seagoing navigator.

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The sturdy, acrylic, brass arms Parallel Ruler includes a protractor scale, is easy to use, and is a necessary tool for every seagoing navigator.

With two straight edged hinges, a parallel ruler allows you to maintain the same angle along the chart by alternating the moving edge and holding down the non-moving edge.

The two straight-edged rulers are connected to maintain the same angle. By walking the rules across the chart and securely holding down the non-moving ruler, you can effectively plot a course.

To work out the direction between two points on your chart, line up the rulers with the two points then step the ruler to the nearest compass rose.

Available in 30cm & 38cm

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