How to plot a course to steer on a nautical chart Draw your ground track (COG)from start point (A) through and beyond your end point (B). Measure the distance of your ground track from A to B using your dividers, measure this against the scale on your chart to determine the distance.
0:022:49How to plot a course with map and compass - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo first I want to make sure my map is oriented to true north to north here is at three four fiveMoreSo first I want to make sure my map is oriented to true north to north here is at three four five degrees. So I just make sure that when I run my compass along here I'm still at three four five.
The course to steer formula: How to plot a course to steer on a nautical chartDraw your ground track from start point (A) through and beyond your end point (B).Measure the distance of your ground track from A to B using your dividers, measure this against the scale on your chart to determine the distance.More items...
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.
0:141:25Plot Simple Position - YouTubeYouTubeStart of suggested clipEnd of suggested clipBegin by finding the latitude coordinate in the scale at the side of your chart. And mark lightlyMoreBegin by finding the latitude coordinate in the scale at the side of your chart. And mark lightly take the parallel rule and after placing one side on a fixed latitude line on the chart.
If you 'plot a strategy' or 'plot a course of action' it means you are carefully planning ahead for the action, you intend to take. You will hear these phrases use more often in professional contexts.
4:479:22Course to Steer Per Standard Magnetic Compass - YouTubeYouTubeStart of suggested clipEnd of suggested clipThree one three plus nine gives us three two - three - two would be what the true direction is basedMoreThree one three plus nine gives us three two - three - two would be what the true direction is based on magnetic north.
When finding the course made good, when the course steered is given, the current is laid off at the end (the DR POSITION). When finding the course to steer, when the course made good is given, the current is laid off at the beginning (the OBSERVED POSITION).
This can be calculated by using the formula Speed = Distance / Time. Once an advance position has been plotted, then set and drift can be factored in. If there is a known set and drift, then the corrections can be applied to the Dead Reckoning position to then get an Estimated Position on a chart.
3. Calculate the compass course you need to steer to offset leeway. If on port tack, subtract the leeway angle; if on starboard tack, add the leeway angle. Check your leeway angle every so often in case it changes.
Read the chart numbers to figure out the water's lowest depth. The black numbers printed on the chart represent water depth. Each number indicates the "mean lower low water" (MLLW) in an area. This is the average water depth at low tide, so most of the time the water is deeper than what you see on a chart.
On your computer, open Google Earth. Search for a place. On the right is a Knowledge Card that shares information about the place. In the box that appears, find the longitude and latitude coordinates.
Basic NavigationLongitude and Latitude. To be able to describe your position anywhere in the world, you can use Latitude and Longitude. ... Speed & Distance. 1 Nautical Mile = 1852 metres. ... Time. When working out time, it is best to use the 24 hour clock. ... Steering a Course. ... Variation. ... Deviation. ... Relative Bearings. ... Transit Bearing.More items...•