You are turning for 7.5 knots and a westerly...

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Question 1 of 2066636eea28f7522a1c51b6f2

You are turning for 7.5 knots and a westerly wind is causing 2° of leeway. There is a current of 047°T at 1.2 knots. What course should you steer between the entrance to Quonochontaug Pond (LAT 41°19.8'N, LONG 71°43.2'W) and the entrance to Great Salt Pond (LAT 41°12.0'N, LONG 71°35.6'W)?

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Question 1 of 20

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🔍 Key Concepts

• Use a mercator sailing / plotting-sheet solution between the two given positions to find the initial true course and distance from Quonochontaug Pond to Great Salt Pond. • Think about how to apply current set and drift (047°T at 1.2 kn) when your speed through the water is 7.5 kn – this is a standard current triangle problem. • A westerly wind means the wind is coming from the west; decide which way the 2° of leeway will push your track and how to adjust your course to steer to compensate.

💭 Think About

• First, from the two positions, what is the rhumb-line true course from departure to destination before any wind or current correction? And what is the distance? • When you build the current triangle, which vector is your ship’s speed through the water, which is the current, and which is the course made good / track you want between the two entrances? • If the wind is from the west, is your vessel being pushed to the east or west of your intended track? Should you steer into or away from the wind to cancel 2° of leeway?

✅ Before You Answer

• Be sure your initial true course from the positions is reasonable: does the line from 41°19.8'N, 71°43.2'W to 41°12.0'N, 71°35.6'W trend generally southeast or southwest on the chart? • Check that your current correction angle is small: current 1.2 kn vs. ship 7.5 kn should not produce a huge change in course – just several degrees. • After applying current, apply the 2° leeway in the correct direction. Confirm that your final course to steer is slightly adjusted from the current-corrected course, not radically different.

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