🔍 Key Concepts

• Speed–time–distance relationship and converting knots to nautical miles per minute • Using the lat/long positions on the chart to measure distance along the track line to Great Salt Pond entrance • Rounding/handling minutes and seconds of time when adding travel time to a given time (0943)

💭 Think About

• First, use your chart to measure the distance in nautical miles from your 0943 position to the entrance of Great Salt Pond. What is that distance? • Given a speed of 12.2 knots, how many nautical miles do you travel in 60 minutes, and therefore in 1 minute? • Once you know distance and speed, how do you compute the travel time in minutes, and then correctly add those minutes to 0943 to find the ETA?

✅ Before You Answer

• Be sure your distance measurement is in nautical miles, not statute miles or cable lengths • Double-check your unit conversion: knots are nautical miles per hour, so convert to minutes carefully • When adding minutes to 0943, confirm whether you cross the hour and adjust the hour and minutes correctly before choosing among the options