According to the Coastwise Distance Tables, what is the approximate distance to New Bedford, MA, from your 0530 DR position, if your 0352 position was 7 miles from Bridgeport, CT (LAT 41°10.3'N, LONG 73°10.8'W)?
• Coastwise Distance Tables usage and how to enter using a known position near a listed point such as Bridgeport, CT • How to estimate distance run between 0352 and 0530 using DR (dead reckoning) course and speed made good from the problem setup/chart • Relating your DR position at 0530 to the nearest table entry for New Bedford, MA, and combining that with your distance off the reference port
• From the 0352 position 7 miles from Bridgeport, what information do you have (or can you find on the exam chart) about your course and speed toward New Bedford? • How far would you reasonably travel between 0352 and 0530 given that course and speed, and how would that change your distance to New Bedford compared with the distance from Bridgeport to New Bedford in the tables? • Which multiple‑choice options can you rule out as being too short or too long, based on a realistic run in a little over 1.5 hours at typical coastal vessel speeds?
• Make sure you know the distance Bridgeport–New Bedford from the Coastwise Distance Tables before adjusting for your DR run. • Confirm the elapsed time between 0352 and 0530 in hours and tenths of an hour before multiplying by speed. • Check whether the problem expects you to be closer to or farther from New Bedford at 0530 than the pure table distance from Bridgeport.
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