🔍 Key Concepts

• Course made good is the actual direction over the ground between two known positions • Use latitude/longitude to plot both positions on the chart and draw the track line between them • Measure the true course of that line using the compass rose on the chart

💭 Think About

• How do you convert two positions in latitude/longitude into a line of travel on the chart? • Once that line is drawn, where do you place your parallel rulers on the compass rose to read the true direction? • Does the time interval (1730–1750) change the course made good, or does it affect something else like speed made good?

✅ Before You Answer

• Be sure both positions (1730 and 1750) are accurately plotted before drawing the line of travel • Confirm you are reading true course from the outer ring of the compass rose, not magnetic • Double‑check that you are measuring from the origin position at 1730 toward the 1750 position, not backward