🔍 Key Concepts

• Speed = Distance / Time for speed made good along a track line • Converting minutes of time to hours when using knots (nm per hour) • Difference between distance run through the water vs. distance made good over ground

💭 Think About

• What is the elapsed time between 2200 and 2236, and how do you express that time in hours? • Once you know the distance made good along the track line, how do you use it with the elapsed time to compute speed in knots? • Are you using the straight-line distance between the two fixes on the chart, or just the bearing and range to the light?

✅ Before You Answer

• Be sure the elapsed time is correctly converted into hours before dividing distance by time • Confirm you are measuring distance along the intended track line, not along the bearing to the light • After computing speed, compare your result to the choices and check for rounding differences that might separate close answers