how to use course plotter 133 weems & plath

How do you use a Weems plotter?

0:000:26How to use Weems & Plath Parallel Plotter - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe tool up to the edge. And then do a fine tuning by using the transparent line on the chart on theMoreThe tool up to the edge. And then do a fine tuning by using the transparent line on the chart on the tool which is more accurate than you roll to the nearest Meridian.

How do you plot a course chart?

How to plot a course on a chart:Draw a line from point A to B - using parallel rules, from starting mark to next mark.Check the line for safety - if not, move end mark until you get a safe leg.Measure and mark the heading - transfer the leg to compass.Measure and mark the distance - measure the legs.More items...

How do you calculate course to steer?

One method requires you to divide 60 by your boat speed, and then multiply this by the rate of tide in order to calculate a course to steer.

How do you use a nautical plotter?

1:285:36Using the Navigational Plotter - Example 1 - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd you want to use your plotter. And remember you want to use the nautical scale. That is on theMoreAnd you want to use your plotter. And remember you want to use the nautical scale. That is on the sectional kanui that the sectional scale this is the sectional.

What is the scale of a 15" course plotter?

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.

What is the scale of a rolling plotter?

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.

What is VP-OS sheet?

These are also known as VP-OS sheets. A graduated circle printed at the center allows meridians of longitude to be constructed for any latitude, thus creating a custom-made chart for any geographical position. Available as a 50-page Plotting Sheet Pad.

What is the Coast Guard Plotter?

Also known as the Search Pattern Slide Rule or Coast Guard Plotter, this tool is a “must have” for active duty Coast Guard, Auxiliarists, or anyone else who might have to run a search pattern. The Course & Leg Identifier quickly calculates the heading and run time for each leg of either an expanding square pattern or sector pattern search, giving you more time to focus on the search.

Is the P.R. 500 bigger than the bi-rola rule?

Made with the professional in mind, the P.R. 500 has aconsiderably 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.