From your 1752 position, you steer 313° pgc...

Question 1 / 2066636eea28f7522a1c51ab81

Question 1 of 2066636eea28f7522a1c51ab81

From your 1752 position, you steer 313° pgc at 9 knots. At 1805, you obtain the following visual bearings:

Old Pt. Comfort Light - 238° pgc. Chesapeake Bay Tunnel North Light - 136° pgc.

What are the latitude and longitude of your 1805 position?

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Question 1 of 20

66636eea28f7522a1c51ab81

From your 1752 position, you steer 313° pgc at 9 knots. At 1805, you obtain the following visual bearings:

Old Pt. Comfort Light - 238° pgc. Chesapeake Bay Tunnel North Light - 136° pgc.

What are the latitude and longitude of your 1805 position?

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🔍 Key Concepts

• Running fix using a DR (dead reckoning) position and later bearings • Converting pgc (per gyrocompass) bearings to true before plotting • Using the vessel’s track and speed from 1752 to 1805 to find the DR position

💭 Think About

• How far did you actually travel between 1752 and 1805 at 9 knots, and along what true course? Plot that from your 1752 position first. • After you plot your DR position at 1805, how do the two visual bearings help you shift that DR to a more accurate running fix? • When you extend each bearing from the correct aid to navigation, where should the lines intersect relative to your DR position, and what does that tell you about the correct latitude and longitude?

✅ Before You Answer

• Be sure you use the correct time difference between 1752 and 1805 when computing distance run. • Confirm any gyro-to-true correction (gyro error / variation / deviation) that should be applied before plotting bearings and course. • After plotting, carefully read off latitude on the meridian and longitude on the parallel that pass through your running-fix intersection point.

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Question 1 of 20

From your 1752 position, you steer 313° pgc at 9 knots. At 1805, you obtain the following visual bearings: Old Pt. Comfort Light - 238° pgc. Chesapeake Bay Tunnel North Light - 136° pgc. What are the latitude and longitude of your 1805 position?

LAT 37° 06.0' N, LONG 76° 08.4' W

LAT 37° 05.9' N, LONG 76° 08.0' W

LAT 37° 05.0' N, LONG 76° 08.7' W

LAT 37° 06.1' N, LONG 76° 08.1' W

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Question 1 / 2066636eea28f7522a1c51ab81

Question 1 of 2066636eea28f7522a1c51ab81

From your 1752 position, you steer 313° pgc at 9 knots. At 1805, you obtain the following visual bearings:

Old Pt. Comfort Light - 238° pgc. Chesapeake Bay Tunnel North Light - 136° pgc.

What are the latitude and longitude of your 1805 position?

Back

Question 1 of 20

66636eea28f7522a1c51ab81

From your 1752 position, you steer 313° pgc at 9 knots. At 1805, you obtain the following visual bearings:

Old Pt. Comfort Light - 238° pgc. Chesapeake Bay Tunnel North Light - 136° pgc.

What are the latitude and longitude of your 1805 position?

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