Plotting on a nautical
Plotting on a nautical chart demands accuracy if you want to achieve the best results. Whether for a Coast Guard exam or for everyday navigation, being more accurate on a chart pays off. This video shares three tips on how to be more accurate when plotting.
0:10 Tip #1: Don't rely on the compass rose.
3:48 Tip #2: Use the dividers correctly.
6:29 Tip #3: Use the most visible portion of the plotting tools.
8:05 Chart Plotting Course Advertisement ($125, take 50% off with code YOUTUBE).
For more on chart plotting, particularly for plotting on USCG license exams, check out my course and use the code YOUTUBE for 50% off.
Here are some links for my favorite plotting tools mentioned in this video:
https://amzn.to/2ob2pxK Extra divider leads
https://amzn.to/2ocNQtz My favorite Weems and Plath dividers
https://amzn.to/2ofW8AE One handed dividers from Weems and Plath
https://amzn.to/2p0HRs7 Rolling parallel plotter
https://amzn.to/2ob8gD6 Parallel Ruler
Music: "The Valley" by Jahzzar, Royalty Free Audio.
One note, using the compass rose you can either use the compass setting or the true-north setting. When using the meridian they will have their course for true north and may forget to correct for variation for a magnetic heading. I use my aviation plotter for both nautical and aviation since it's so easy to use it on latitude and longitude. I like your presentation very much.
Another excellent video. Maybe I am a geek, but I get excited every time one of your videos pops up in my notifications.
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I never knew about the sandpaper trick until today.
Also, I agree that a few pin pricks in the map is a fair price to pay for an accurate measure. I come from aviation, where it's mandatory to replace maps every year: I always did my routes in pen. I did my daily math and notes in soft pencil of course, but my primary track line and my 10° lay lines and any hazards on my route were marked in pen because I'm always going to fly the same routes, so why not: after a year of drawing and erasing pencil lines in exactly the same place every week (small airline, same runs, same altitude, every week) the other pilots maps were barely readable while mine could have been used another year easy! Man did this bother some of the captains though! I can't imagine doing different for sailing since I want to permanently keep a souvenir of my journeys; I do understand it would of course be different for tugs, fishing boats, etc, that wander around more, so depending on the circumstances one has to use some judgement, but there's no need to be a religious zeolite about it! My mom's Bible is marked up with notes all over, and that's how I treat my charts: if I notice a tall tower or a shallow reef I circle it, in pen: just because I noticed it today does not mean I'll notice it when I'm tired some day.
Capt. Jeff Sylvia
Capt. Jeff Sylvia explains the different plotting tools mariners have at their disposal, and weighs their benefits. He then explains how to use plotting triangles on a chart and why they might be easier to use than a roller plotter or parallel ruler.
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At the 8:30 mark you use the second triangle to move the first triangle away from the plotted course to get to the meridian. Might it have been more accurate to hold the second triangle on the plotted course and then slide the first triangle until it's converging lines meet on a meridian. This would allow you to visually check that the first triangle is both directly on the plot line and the converging points line up at the meridian. You could only do it this way if your course is at least somewhat off of due North or south.
Your voice is so soothing.
Very clear explanation. :) Thank-you.
You are awesome, Sir!
Soils is a super important
Soils is a super important topic in permaculture and understanding what is already on the ground is a good starting point. This video shows you how to classify your soil in the different categories used by the United States Department of Agriculture (USDA). Then you can properly categorize and communicate with folks who you may need to bring on site such as earthmovers, engineers, and soil scientists.
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A very informative straightforward lesson sir..You helped me a lot as today is my bio practical...
But how how do you know when to draw the line horizontally and when to draw the line diagonally? (coming from an environmental science class hehe)
Hi, so if it’s between 2, can we write both or any? Will it be correct?