🔍 Key Concepts

• Plotting a position on a chart using latitude/longitude or bearing and distance • How to determine whether a plotted point is east or west of a channel centerline • Using the chart scale to measure distance in nautical miles from a reference line (like a channel)

💭 Think About

• After plotting the 1752 position, what fixed reference line or feature on the chart represents the York Spit Channel? • When you draw a perpendicular from your plotted position to the channel centerline, does that point fall to the east or west side, and by how much? • How do you convert the chart measurement (in inches or millimeters) into nautical miles using the latitude scale?

✅ Before You Answer

• Verify you have correctly plotted the 1752 position from the earlier parts of the problem • Carefully check whether the plotted point lies east or west of the York Spit Channel centerline, not just ‘near’ it • Use the latitude scale to confirm whether the distance from the channel to your position is greater than or less than 0.5 NM before choosing an answer