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post #15 of Old 02-27-2010
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You do not need the chart.

This an example that I use to teach set and drift, CMG, SMG, CTS, Speed.

On November 18, 2003 we plan on leaving Thieves Bay Marina, Mouat Point Light (Lat 4846.5N Long 12318.75W) for Isabella Island (Lat 4843.75N Long 12325.75W). We will use the current information for Swanson Channel. The chart shows the flood direction to be 360. Using our current prediction tables, we determine that that the drift is 1 knot. Our boat speed is 5 knots. Our course to make good is 242T. We need to gauge our speed made good and our course to steer.

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