Westcott Course Protractor Plotter Ruler, 15", Transparent (P-72)

whenever we're plotting on a chart we want to be as accurate as possible whether that's for a Coast Guard exam or just if we're navigating our boat along here's three tips to be a little bit more accurate using the tools of chart plotting the first tip I would say is don't necessarily think you have to always use the compass rose when you're measuring directions right so for example I have this track line from Coast Guard Station Castle Hill / - mackerel Cove here in Newport Rhode Island and this is the track line that I want to follow it's what I want to measure I need to know what the bearing is a lot of people are going to use the compass rose for that they may take a parallel plotter like this measure it bring it down to the compass rose and read out a value and that's fine the only problem with that is the compass roses are not always conveniently placed around the chart right and