From your 2129 position you reduce engine speed to 14 knots. What is the course to make good from your 2129 position to arrive 0.3 mile north of Lighted Whistle Buoy "NCA" (LL#375) assuming no set and drift?
• Plotting a course to make good between two charted positions • Using the assumed speed (14 knots) only to check time, not to determine the course line • Carefully reading the question: destination is 0.3 mile north of Lighted Whistle Buoy "NCA"
• On your chart, how do you accurately locate a point that is 0.3 mile north of a buoy—what tool and scale on the chart will you use? • Once you have both the 2129 position and the 0.3 mile north point plotted, what do you physically draw and measure to determine the course to make good? • After you measure a course, how can you use the multiple‑choice options to double‑check that your line visually matches the general direction on the chart?
• Be sure you are using true bearings from the chart, not magnetic or compass, when comparing to the answer choices (all are °T). • Verify that the point 0.3 mile north of the buoy is measured along a meridian (north–south line), not along the slanted course line. • Re‑check that you started your course line exactly from your plotted 2129 position, not from the buoy itself.
No comments yet
Be the first to share your thoughts!