🔍 Key Concepts

• COLREGS vs Inland Rules boundary in Long Island Sound and approaches to New London • Charted position and description of Race Rock Light relative to Fishers Island • Definition and charted limits of light sectors (red, white, green) for South Dumpling Light

💭 Think About

• Think about where the demarcation line between Inland Rules and COLREGS lies in relation to Race Rock and the approaches to New London. Are you inside or outside that line when Race Rock bears 000°T at 0.5 nm? • Consider the actual geographic feature Race Rock Light is on. Is it itself the southwest extremity of Fishers Island, or is it located off that extremity? • Ask yourself what information you would need from the light list or chart to know whether you are in the red sector of South Dumpling Light at this bearing and distance from Race Rock.

✅ Before You Answer

• Check the Navigation Rules demarcation lines for New London / Long Island Sound area in 33 CFR Part 80 to decide which rules apply at this position. • Verify on the appropriate NOAA chart how Race Rock Light is labeled and how it relates to the shoreline and extremities of Fishers Island. • Confirm the sector limits and ranges for South Dumpling Light (bearings for red sector and its geographic coverage) and see whether a position 0.5 nm due south of Race Rock would fall within that sector.