🔍 Key Concepts

• Relative bearings vs. true bearings from known lights to obtain a fix on a chart • How to determine course made good and speed made good between two fixes using time and distance • The boundary line between Inland Rules and COLREGS (International Rules) in the Block Island/Montauk area

💭 Think About

• From the two true bearings, sketch or plot where you are on the chart at 2038, then think about how that position relates to nearby buoys and to the coastline • Consider what additional information you would need to accurately calculate course made good and speed made good between 1959 and 2038—do you have distance between fixes, or only one of the fixes? • Ask yourself where the demarcation line for Inland vs. International Rules lies in relation to Block Island Sound South Entrance and whether being in the approaches places you inside or outside Inland waters

✅ Before You Answer

• Verify on the chart whether the "BIS" buoy lies ahead/abeam/astern relative to the 2038 fix you plot • Confirm whether you actually know your 1959 position from the question text before accepting any statement about course or speed made good • Check the COLREGS/Inland demarcation line on the chart to see which Rules apply at the plotted 2038 position