Includes : Breton Plotter, 125mm Square, 7" Single Handed Divider, two 2B pencils and an eraser. Supplied in a plastic wallet.

A simple kit for chart correction.

Kit containts correction stencil and two chart correcting pens in plastic wallet.

Includes the following Weems & Plath plotting tools: two 103 - 45° protractor triangles, one set of the 140 - 12" parallel rulers, the 133 course plotter, one pair of 260 - 6" matt nickel dividers with replaceable points, and one 2 pencil, all in a reusable plastic pouch. Complete with comprehensive instructions. Dims: 7-¼" x 16-5/8".

Weems & Plath Chartwork Kit-
7'' Single Handed Dividers/Weems Plotter/2 Pencils/Sharpener/Sq.Protractor

Weems & Plath
Portable navigation system designed for accurate navigating with any chart, chartkit, or chartbook. The plotter is made of solid wood and an integrated adjustable parallel arm fitted with a moveable compass rose. This permits the direct plotting of magnetic compass courses and firmly supports chart work whether in the cockpit, on deck, or below. Plot a course to a given point by locking the rule at a given bearing. By moving the rule so that the point is on an edge, you quickly determine the correct line of position on a chart for that bearing. A see-through acrylic sheet overlays and protects the chart as you plot and allows for notations using a dry erase marker (included). A tough custom nylon carrying case is included. Dims: 22-5/8" x 20-3/16".

A standard acrylic plotter with moveable compass rose and three scales on both edges. Matt surface to allow pencil marking.

Innovative straight-line action and special pencil guide holes enable latitude and longitude obtained from GPS to be quickly, easily and accurately plotted on paper chart in simple two-step manoeuvre.
Features protractor markings - can also serve as conventional style plotting device and parallel rule.
One size covers all charts.
Has innovative slip and grip feature that helps improve accuracy.
Dimensions: 108mm x 406mm.

A bright green directional arrow prevents accidental reciprocal bearings and the edges are graduated for tide and boat speed. The base has a fixed grid so it is easy to plot latitude and longitude from your GPS system. Comprehensive instructions included.

Portland Course Plotter and 7"" singlehanded dividers

Locking centre disk with single rotating arm.

15"" arm with lock

Centre-rotating disk that has a friction type fitting. Single rotating arm. Disk can be set at different magnetic variations.

15"" arm with friction centre

Weems and Plath

The 8" x 2" plotter, mounted on a marine aluminium roller assembly, contains a semi-circular protractor, distance scales of 1:20,000 and 1:40,000, as well as an inch scale. Dims: 2" x 8".

This 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, as well as an inch scale. Included are a semi-circular protractor 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. Dims: 3.5" x 12.5".

Douglas type square navigational protractor which can also be used as a simple parallel rule and plotter.

Douglas type square pattern.

Weems & Plath
Versatile tool - can be used to lay off a course or a bearing, measure the distance between any two points, plot a position on a chart from a given set of coordinates, or determine the coordinates of a position on a chart. Pencil & sharpener provided.

Strong acrylic, with protractor markings and compass points with reciprocals in red and a scale in mm. Often used in pairs as a parallel rule.

Also available in 230mm

Strong acrylic, with protractor markings and compass points with reciprocals in red and a scale in mm. Often used in pairs as a parallel rule.

If you have been afloat at night and wondered if the lights you see are from an approaching or fleeing vessel, then this is the ideal reference. Identification tool which identifies 60 light configurations.

Identification tool with lights shaps and manoeuvering signals for European Inland Waterways.

Reference tool to identify navigation aids, Rules of the Road and manoeuvering signals for European Inland Waterways.

Reference tool for navigation aids, rules of the road and light characteristics for international waterways

Reference tool with region B buoyage.

A simple-to-use slide rule to calculate the third variable given the other two.

Approx. 7"" long

Simple to use slide for calculating the third variable, given the other two. NATO size.

Approx. 11" long.

Weems & Plath
An immediate solution to all speed - distance problems. Applicable to nautical or statute miles. Speed in knots or m.p.h., time in hours, minutes or seconds.

Weems & Plath
A hand held tool for the racing sailor. Provides a visual depiction of what is happening. Can help - determine start line bias, what your heading will be on the opposite tack, how close you are to the layline, what point of sail the next leg will be. On the reverse side is a racing flag summary. Speed/time/distance table.

The Weems & Plath Compute-A-Course is a compact, multi-purpose-plotting tool. Ideal for general boating or commercial use. The Compute-A-Course can be used for position fixing, course plotting, and distance measurements with the included scales. Using the log scale on the instructions, time/distance calculations are easy. Instructions included. Dims: 7-3/16" w x 8-½" h

Weems and Plath
An advanced navigation tool, the circular slide rule provides for the solution of time, speed and distance, fuel consumption, conversions, multiplication, and division. On the reverse, the face of the Vectormaster permits rapid solution of problems involving vectors, such as those encountered in current sailing, the determination of true wind direction and force, and the apparent wind to be expected on other headings. Given the position of a storm, and the direction and speed of its advance, you may quickly determine the course which will put maximum distance between your vessel and the oncoming storm. Instruction booklet included. Dims: 7" square

225mm

Designed for expanding square pattern and sector pattern searches. Also known as the Search Pattern Slide Rule, or Coast Guard Plotter. Quickly calculate the heading and run time for each leg of either an expanding square pattern or sector pattern search.