At 1016 your GPS position is LAT 41°07.6'N,...

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Question 1 of 2066636eea28f7522a1c51a9ef

At 1016 your GPS position is LAT 41°07.6'N, LONG 71°37.9'W. At 1104 your position is LAT 41°00.2'N, LONG 71°29.4'W. What was the true course made good between the two positions?

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Question 1 of 20

66636eea28f7522a1c51a9ef

At 1016 your GPS position is LAT 41°07.6'N, LONG 71°37.9'W. At 1104 your position is LAT 41°00.2'N, LONG 71°29.4'W. What was the true course made good between the two positions?

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🔍 Key Concepts

• Difference in latitude and departure between two positions • Using a meridian (mid-latitude) sailing / right-triangle concept to approximate course • Plotting or computing the direction of the track from the first fix to the second

💭 Think About

• First, determine whether you moved mostly north/south or east/west, and in which directions, between the two fixes. • Convert the changes in latitude and longitude into minutes of arc, then think of them as the two legs of a right triangle – which leg is north–south and which is east–west? • From that triangle, what trigonometric function (sine, cosine, or tangent) would you use to find the angle of the track (true course made good)?

✅ Before You Answer

• Be sure to convert degrees and minutes to total minutes before subtracting. • Remember that 1 minute of latitude = 1 nautical mile, but minutes of longitude must be adjusted by cosine of the latitude when converting to miles. • Check that your final course is expressed as a three-digit true bearing (000°–359°T) and that the quadrant (NE, SE, SW, NW) matches the actual movement between the two positions.

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Question 1 of 2066636eea28f7522a1c51a9ef

At 1016 your GPS position is LAT 41°07.6'N, LONG 71°37.9'W. At 1104 your position is LAT 41°00.2'N, LONG 71°29.4'W. What was the true course made good between the two positions?

Back

Question 1 of 20

66636eea28f7522a1c51a9ef

At 1016 your GPS position is LAT 41°07.6'N, LONG 71°37.9'W. At 1104 your position is LAT 41°00.2'N, LONG 71°29.4'W. What was the true course made good between the two positions?

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

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