🔍 Key Concepts

• Two-bearing visual fix using simultaneous pgc (per gyrocompass) bearings • Using the chart to find sounding/depth at a plotted position • Whether the question wants charted depth vs. depth of water (charted depth ± tide)

💭 Think About

• After plotting 020.5° pgc from Watch Hill Point Light and 269.5° pgc from Race Rock Light, what do you do where the two lines of position cross? • On your exam chart, what is the nearest or covering sounding at that fix, and is it clearly distinct from the other multiple‑choice options? • Have earlier questions or the exam instructions told you to correct depths for tide, or are you using the charted soundings as‑is?

✅ Before You Answer

• Confirm you are plotting reciprocal bearings from each light (bearing to the light vs. line from the light). • Verify that you are reading the correct sounding units (feet vs. fathoms) and converting if needed. • Check whether the exam problem (or exam front page) specifies using chart datum only or correcting for height of tide before choosing among the depth options.