At 0740, you obtain the following radar data: Branford Reef Light bears 068°T at 3.0 nm What is your position?
• Radar range and bearing to a charted object (how it fixes your position relative to that object) • How to plot a single range and bearing line of position (LOP) from a known aid to navigation • Converting the plotted point on the chart into latitude and longitude
• On your chart, find Branford Reef Light and think about what a true bearing from your vessel to the light looks like when plotted as a line of position. • Consider whether you should draw the bearing to or from the light, and how that affects where your vessel lies relative to the light. • Once you draw the correct LOP and mark the point 3.0 nm from the light along that line, which of the answer choices most closely matches the latitude and longitude of that plotted point?
• Verify whether the given 068°T is the bearing of the light from your vessel or your vessel from the light, and plot accordingly. • Double-check that your 3.0 nm arc or range circle is measured from Branford Reef Light, not from your vessel. • Confirm that you read latitude from the side scale and longitude from the top/bottom scale carefully, paying attention to tenths of minutes (.0, .1, .3, .5, .8, etc.).
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