From your 0530 position, you set a course of...

Question 1 of 2707066636eea28f7522a1c51a852

From your 0530 position, you set a course of 271° psc with an engine speed of 9 knots. At 0645, Cornfield Safe-Water Buoy is abeam to starboard. What speed have you averaged since 0530?

Back

Question 1 of 27070

From your 0530 position, you set a course of 271° psc with an engine speed of 9 knots. At 0645, Cornfield Safe-Water Buoy is abeam to starboard. What speed have you averaged since 0530?

🔍 Key Concepts

• Speed = Distance / Time relationship in navigation problems • Converting the time between 0530 and 0645 into hours (decimal form) • Using the chart to measure the distance traveled along the 271° psc course until the buoy is abeam to starboard

💭 Think About

• How do you convert the elapsed time from 0530 to 0645 into hours expressed as a decimal? • Once you plot your course and mark where the buoy is abeam to starboard, how can you use the latitude scale to find the distance run? • After you find the distance in nautical miles and the elapsed time in hours, what simple formula lets you compare your average speed made good with the engine speed of 9 knots?

✅ Before You Answer

• Be sure you are using elapsed time (difference between 0530 and 0645), not clock times directly. • Verify that the distance you measure on the chart is in nautical miles, not minutes of longitude or another unit. • Confirm you plug values correctly into Speed = Distance / Time and see which of the multiple-choice options is closest to your computed speed.