🔍 Key Concepts

• Radar ranges for position fixing using two known objects • How to plot range arcs (circles) from fixed aids to navigation on the chart • The effect of small changes in range on latitude and longitude near the coast

💭 Think About

• On your chart, how would you use the 2.5 nm range from Branford Reef Light and the 3.9 nm range from New Haven Light to find a single point? • Once you imagine (or actually draw) those two range arcs, does their intersection lie slightly north/south and east/west compared to the listed answer choices? • Compare the relative positions of Branford Reef Light and New Haven Light: is your vessel closer to one than the other, and how should that be reflected in the latitude and longitude direction?

✅ Before You Answer

• Confirm you are using nautical miles (nm) on the correct latitude scale for distance on the chart. • Check which answer choice best matches being closer to Branford Reef Light (2.5 nm) and farther from New Haven Light (3.9 nm) based on their charted positions. • Verify that the chosen latitude and longitude place you between the two lights in a way that makes sense with those two distances.