You depart LAT 32° 16.6' N, LONG 68° 28.0'...

Question 1 / 2066636eea28f7522a1c51b06e

Question 1 of 2066636eea28f7522a1c51b06e

You depart LAT 32° 16.6' N, LONG 68° 28.0' W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43° 12.2' N, LONG 55° 39.0' W?

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Question 1 of 20

66636eea28f7522a1c51b06e

You depart LAT 32° 16.6' N, LONG 68° 28.0' W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43° 12.2' N, LONG 55° 39.0' W?

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🔍 Key Concepts

• Use Mercator sailing: work in a right triangle formed by difference of meridional parts and departure, not just plain difference of latitude. • Determine the quadrant of the course first from the changes in latitude and longitude (are you going N/S and E/W?). • Compute difference of meridional parts from a nautical table for each latitude, and departure from the difference of longitude and mean latitude.

💭 Think About

• From 32° 16.6' N to 43° 12.2' N, are you going generally north or south? From 68° 28.0' W to 55° 39.0' W, are you going east or west? What quadrant does that put your true course in? • How does Mercator sailing use the right triangle where one side is the difference of meridional parts and the other is the departure to find the course angle? • Once you have the course angle, how can you use it with the change in latitude to find the rhumb‑line distance and see which distance choice is reasonable?

✅ Before You Answer

• Confirm whether the course must be in the NE, NW, SE, or SW quadrant before you look at the numeric bearings. • Check that the distance is consistent with about 11° of latitude change (roughly 60 NM per degree of latitude). • Verify that you used meridional parts, not just plain difference of latitude, when relating the triangle sides to get the course.

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Question 1 of 20

You depart LAT 32° 16.6' N, LONG 68° 28.0' W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43° 12.2' N, LONG 55° 39.0' W?

136.6° T, 955.1 miles

049.1° T, 955.1 miles

042.8° T, 896.2 miles

132.8° T, 896.2 miles

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Question 1 / 2066636eea28f7522a1c51b06e

Question 1 of 2066636eea28f7522a1c51b06e

You depart LAT 32° 16.6' N, LONG 68° 28.0' W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43° 12.2' N, LONG 55° 39.0' W?

Back

Question 1 of 20

66636eea28f7522a1c51b06e

You depart LAT 32° 16.6' N, LONG 68° 28.0' W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43° 12.2' N, LONG 55° 39.0' W?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed