At 2142, you take the following bearings:
Stratford Point Light: 331°T Stratford Shoal Middle Ground Light: 280°T Old Field Point Light: 223°T
What is your 2142 position?
• 3-bearing position fix using visual bearings to lights • Plotting lines of position (LOPs) by converting bearings to reciprocal bearings on the chart • Checking which plotted intersection best matches the Lat/Long answer choices
• How do you convert a true bearing from an object into the line you plot toward the object on the chart? Think in terms of adding or subtracting 180°. • After plotting three LOPs, is the intersection point inside a small triangle of error? Where is the most reasonable fix in that triangle? • Once you have the approximate fix on the chart, which of the given Lat/Long choices most closely matches that point’s position relative to nearby landmarks and depth contours?
• Make sure you are using true bearings (not magnetic) and plotting them correctly from each light. • Verify each bearing’s reciprocal is plotted from the correct light symbol on the chart. • Double-check that your final plotted fix lines up logically with nearby buoys, depth soundings, and coastline shape before matching it to the best Lat/Long choice.
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