At 2350 the gyro is restored to service. At...

Question 1 of 2707066636eea28f7522a1c51ad80

At 2350 the gyro is restored to service. At 0016 the visibility improves. At 0028 you sight Bartlett Reef Light in line with New London Harbor Light bearing 039°pgc. What is the gyro error?

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Question 1 of 27070

At 2350 the gyro is restored to service. At 0016 the visibility improves. At 0028 you sight Bartlett Reef Light in line with New London Harbor Light bearing 039°pgc. What is the gyro error?

🔍 Key Concepts

• Gyro error = True bearing − Gyro bearing (keep track of E/W sign) • Use a range (two lights in line) to know the true bearing of that line from the chart • Difference between per gyro compass (pgc) and true bearing (T)

💭 Think About

• On the chart, find the true bearing of the line formed by Bartlett Reef Light and New London Harbor Light from your position. How do you measure that accurately? • Once you have the true bearing, compare it with the 039° per gyro compass. Which one is larger, and what does that tell you about whether the gyro error is east or west? • Carefully compute the numerical difference between true and gyro bearings. Does that difference more closely match 0°, 2°, or 4° in the answer choices?

✅ Before You Answer

• Verify the true bearing of the range line (Bartlett Reef Light in line with New London Harbor Light) from the chart, in degrees true. • Check that you are using the correct formula: Gyro error = True − Gyro and then convert the sign into E (gyro high) or W (gyro low). • Confirm that you did not accidentally use magnetic or compass bearings; the question is specifically about gyro vs true.