15" Brushed Aluminum Arms Parallel Rule (Weems & Plath 141) T3 - Honduras - Nicaragua - Costa Rica - Panama - Columbia Edition Date: 2013-06-01

Edition Date: 2013-06-01

17 Damage Report/Form

This log book meets rigorous national standards

is an essential tool for mariners and navigators committed to maintaining the integrity of their voyaging charts

although the ratio as it is now seen was accepted in November of 2009

15" Brushed Aluminum Arms Parallel Rule (Weems & Plath 141) T3 - Honduras - Nicaragua - Costa Rica - Panama - Columbia Edition Date: 2013-06-01Of all our traditional parallel rulers, the 15 inch (38. 1cm) Brushed Aluminum Arm Parallel Rule is a best seller. This sturdy acrylic parallel rule includes a protractor scale, is easy to use, and is a necessary tool for every seagoing navigator. 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. 15 inches (38.