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| PROTRACTOR TRIANGLE BLACK
MARKINGS |
| Mfg. by Weems & Plath. This triangle is inscribed with black markings. Using two 45° triangles provides an easy method of plotting and performing chart work. With its protractor scales, the triangle is easily aligned in any direction with a chart meridian. Direction is maintained as one triangle is slid along the other to the desired position. Durable, clear vinylite. Short sides 7-1/2", .08" thick, (one per pack). |
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wp103
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Price: $17.99 |
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| WEEMS PARALLEL PLOTTER |
| Mfg. by Weems & Plath. Our most popular plotter! 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 to fit the N.O.S. Coast and Harbor Charts, 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". |
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wp120
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Price: $24.99 |
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| COMPACT PARALLEL PLOTTER
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| Mfg. by Weems & Plath. A smaller version of our traditional rolling plotter. The 8" x 2" plotter, mounted on a marine aluminum 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". |
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wp060
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Price: $23.99 |
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| COURSE PLOTTER |
| Mfg. by Weems & Plath. This is a 15" course plotter with a semi-circular protractor scaled from 180° to 360° inside. Lower edge scales 1:80,000 and 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 1 inch equal to 20 miles to accommodate the VPOS Universal Plotting Sheets. Dims: 4.375" x 15". |
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wp133
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Price: $19.99 |
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| VECTA - ROSE (PACK OF 12)
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| Mfg. by Weems & Plath. 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. Dims: 4.5" x 4.5". |
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wp512v12
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Price: $14.99 |
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| THREE ARM PROTRACTOR |
| Mfg. by Weems & Plath. 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. Moveable arms have a vernier scale for even more precise measurements. Dims: 6" x 21". |
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wp116
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Price: $30.00 |
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| WEEMS PROTRACTOR |
| Mfg. by Weems & Plath. This navigation tool is versatile and can be used to lay off a course or a bearing, measure 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. It is an updated version of the Breton and Portland Plotters. Pencil and sharpener included. Dims: 15" x 5". |
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wp255
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Price: $24.99 |
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| BI - ROLA RULE ROLLING PLOTTER
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| Mfg. by Weems & Plath. This rule’s patented vertical and horizontal rolling motion simplifies course and plotting calculations, while the unique radial arm allows you to automatically include compass corrections in your course plotting. Dims: Length 13-7/8", Width 2-5/8", Thickness 1". Features: Patented four-way rolling motion, Roller body has protractor markings and a nautical mile scale, Radial arm has Loran interpolator scales and 200 millimeter rule Automatic compass corrections, When radial arm and body are used jointly, the birola rule becomes a 440 mm (17") divider (approximately), A speed/time/distance table is included, Easy to follow instructions, Packaged in a protective, durable vinyl pouch. |
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wp155
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Price: $72.99 |
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| BI - ROLA RULE P.R. 500 ROLLING
PLOTTER |
| Mfg. by Weems & Plath. Made with the professional in mind, the P.R. 500 has a considerably larger body than the smaller bi-rola™ rule. Built to take rigorous use aboard commercial and blue water vessels, the P.R. 500 provides one of the easiest methods invented for plotting courses. Dims: Length 19-5/8", Width 3-5/8", Thickness 1-1/4". Features: Patented four-way rolling motion, Roller body has protractor markings every 1/2 degree, 1-1/4" magnifying lens for enhancing chart data, Easy to follow instructions, Packaged in a protective, durable vinyl pouch. |
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wp220
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Price: $112.99 |
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| SQUARE COURSE PLOTTER |
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Mfg. by Weems & Plath. This plain edge protractor is suitable for plotting courses and bearings. Notations can be made directly on the matte plastic surface with a pencil. Constructed of durable, transparent plastic. Instructions included. Dims: 7-3/4" x 9-7/16".
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wp555
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Price:
$16.99
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