🔍 Key Concepts

• Use the given position of Watch Hill Radiobeacon and your relative position (due north, 4.7 nm) to plot your own DR/fix on the chart • Compare each answer choice against what you can actually see/measure from that plotted vessel position (distances, bearings, charted notes) • Understand how ranges, bearings (true vs. gyro vs. compass), and depth curves (fathom curve) are shown and labeled on the chart

💭 Think About

• If Watch Hill Radiobeacon is due north at 4.7 nm, where exactly are you on the chart (lat/long or visual reference)? • From that plotted point, what are the approximate range and bearing to Fishers Island, Montauk Point Light, and Stonington Breakwater lights? • Which choice depends on specific charted relationships (like two aids on the same bearing, a precise depth contour, or a specified range line)?

✅ Before You Answer

• Make sure your plotted position places you south of Watch Hill Radiobeacon by 4.7 nm along the same meridian (same longitude) • Verify the scale of the chart and measure ranges with dividers to check 4.7–4.8 nm distances accurately • Check how gyro/compass bearings (pgc) relate to true bearings on the chart and whether any chart note shows two aids in line or on the same bearing from a given area