At 0615 you change course to 078°T. If there...

Question 1 of 29218fork_f6334a79e2744db4b5c

At 0615 you change course to 078°T. If there is no current, when will Falkner Island Light be abeam?

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Question 1 of 29218

At 0615 you change course to 078°T. If there is no current, when will Falkner Island Light be abeam?

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🔍 Key Concepts

• Use the time-speed-distance relationship to find how long it takes to reach the abeam position • Determine the distance from your 0615 position to the abeam point of Falkner Island Light along your new course 078°T • Remember that "abeam" means when the light is 90° on your beam (directly off your side), not when you are closest to it on the chart

💭 Think About

• From your DR track, identify your 0615 position and the position of Falkner Island Light on the chart, then sketch or visualize the geometry of when the light will be abeam on course 078°T • Figure out what distance along the 078°T course line corresponds to the point where a line drawn from your track to the light makes a 90° angle • Once you know that distance, use your vessels speed (from the earlier parts of the problem) to compute how many minutes after 0615 you will reach that point

✅ Before You Answer

• Confirm your speed in knots from the previous part of the problem before calculating time • Be sure you are measuring the distance along your track, not straight-line distance to the light • Double-check that the bearing from the vessel to the light at the abeam moment is exactly 90° from your course of 078°T (either 168°T or 348°T relative bearing)