Portland Course Plotter & Dividers Kit for Navigation

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The Portland Course Plotter with Dividers kit. The Portland Course Plotter with Dividers kit for navigation and Includes a 7" Single Handed Divider. Used worldwide by practical and shore based instructors Bright blue directional arrow prevents accidental reciprocal bearings Edges are graduated for tide and boat speed Base has a fixed grid so it is easy to plot latitude from your GPS system Comprehensive instructions included Includes a 7" Single Handed Divider Show more