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Weems & Plath® Course Plotters & Protractors

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Weems & Plath® Parallel Plotter
Weems & Plath's® most popular plotter!
The instrument consists of a plotter mounted on a roller.  The plotter contains distance scales at 1:20,000,1:40,000 and 1:80,000 to fit the N.O.S. Coast and Harbor Charts and also an inch scale.  A semi-circular protractor is included for measuring courses and bearings against a meridian on the chart, and two quarter circle protractors for measuring courses and bearings against a parallel of latitude.  Courses and parallel lines are transferred and kept parallel by means of two rollers which are mounted on a slide axis.  Used for measuring or laying off courses and distances on a nautical chart.  Instructions included.  Wt. 5 oz.
Weems Parallel Plotter
Mfg. Part Number 120
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Compact Weems Parallel Plotter
A smaller version of our traditional rolling plotter.  Great for use on coastal strip charts, chart books or on small chart boards and tables.  The 8" x 2" plotter, mounted on a marine aluminum roller assembly, contains a semicircular protractor, distance scales of 1:20,000 and 1:40,000, as well as an inch scale.  Recommended for use in conjunction with the Weems & Plath7 Vecta-Rose for folded charts.  Wt. 3 oz.
Compact Weems Parallel Plotter
Mfg. Part Number 60
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Weems & Plath® Vecta-Rose
The Vecta-Rose is a pressure sensitive compass rose that can be applied directly to your charts when the printed rose is not in a convenient location.  Can be oriented to either true or magnetic north for handy reference.  Perfect for folded charts and recommended for use with our Compact Weems Parallel Plotter.
Vecta-Rose (pack of 12)
Mfg. Part Number 512V-12
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Vecta-Rose (pack of 6)
Mfg. Part Number 512V-6

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Weems & Plath® Course Plotter
Used by navigators for over 50 years.This is a 15" course plotter with a semi-circular protractor scaled from 180º to 360º inside.  Lower edge scales 1:80,000and 1:40,000 to accommodate National Ocean Survey charts.  For north and south courses, a small auxiliary protractor scale is printed inside the larger one and is used against a parallel latitude.  The upper edge is scaled one inch equal to 2O miles to accommodatethe VP-OS Universal Plotting Sheets.  Wt. 3 oz.
Weems & Plath® Course Plotter
Mfg. Part Number 133
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Weems & Plath® Three Arm Protractor
Heavy duty, crystal clear acrylic construction is the foundation for this simple to use, professional plotting aid.  Arms are rigid enough to trace a bearing line.  Can be used to position and chart from three identifiable shore, landmark or buoy locations.  Just measure the angles on the protractor and locate your position on the chart.  Wt. 5 oz.
Weems & Plath®  Three Arm Protractor
Mfg. Part Number 116
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