🔍 Key Concepts

• Standard magnetic compass (psc) vs true bearings and why they matter in plotting • How to plot bearing lines of position (LOPs) from known lights on the chart • The need to use the reciprocal of a bearing when plotting from the aid toward your vessel

💭 Think About

• Are all three bearings given in the same reference system as the chart you are using, or do you need to convert them first? If so, how? • When you draw each LOP from Saybrook Breakwater Light, Little Gull Island Light, and Horton Point Light, where does their intersection fall relative to nearby charted features? • Does your plotted position make sense with a course of 262° psc and the general location of these three lights in Long Island Sound?

✅ Before You Answer

• Make sure you apply any needed deviation and variation correctly and in the right direction when converting from compass to true, if required by the exam setup. • Verify you are plotting the reciprocal bearings from the charted lights (from the light to the vessel), not from the vessel to the light. • After you get an approximate fix, compare both latitude AND longitude (including N/W designations) carefully with the answer choices; rule out any that are geographically inconsistent with your plot.