Product Description
The 18-inch (45.72cm) Aluminum Arms Parallel Rule feature aluminum arms that join two clear acrylic rulers inscribed with a protractor scale. An essential item in any proper navigation kit, these rules are used to plot direction on a nautical chart from any convenient meridian or compass rose. The two straight-edged rules are connected to maintain the same angle. By walking the rules across the chart and securely holding down the non-moving rule, you can effectively plot a course.
- 18-inches (45.72cm) long
- Protractor scale
- Sturdy clear acrylic with aluminum arms
- Protective plastic sleeve
- Lifetime warranty
Product Videos
Custom Field
ISBN 721002001382
Dimensions (IN) 18 x 2.6
Date Added April 2021
Supplier/Publisher Weems & Plath
Product Navigation Tool
Availability available for order
Condition new
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