On 27 August your 0900 zone time DR position...

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Question 1 of 2066636eea28f7522a1c51adb7

On 27 August your 0900 zone time DR position is LAT 24°25.0'N, LONG 94°20.0'W. Your vessel is on course 071°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?

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Question 1 of 20

66636eea28f7522a1c51adb7

On 27 August your 0900 zone time DR position is LAT 24°25.0'N, LONG 94°20.0'W. Your vessel is on course 071°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?

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🔍 Key Concepts

• Local Apparent Noon (LAN) occurs when the Sun is on your local meridian, not automatically at 1200 zone time • Relationship between longitude difference and time difference (15° of longitude = 1 hour of time) • How to use your course and speed from the 0900 DR to estimate where you will be (in longitude) near noon

💭 Think About

• From 0900 to the approximate time of LAN, how many hours will you steam, and how far along track will that carry you? • As you move on course 071°T, will your longitude become numerically larger or smaller, and what does that mean for local time of LAN compared to your current zone time? • Once you estimate your longitude at noon, how do you convert that longitude into the time of LAN in the time zone you are in?

✅ Before You Answer

• Be clear on your time interval from 0900 to your trial LAN time when computing DR position • Check whether your track significantly changes longitude between 0900 and LAN, and use only the longitude component for time correction • Confirm which time zone meridian you are using, and compare your noon DR longitude to that meridian to find the minutes difference between 1200 and LAN

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Question 1 of 2066636eea28f7522a1c51adb7

On 27 August your 0900 zone time DR position is LAT 24°25.0'N, LONG 94°20.0'W. Your vessel is on course 071°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?

Back

Question 1 of 20

66636eea28f7522a1c51adb7

On 27 August your 0900 zone time DR position is LAT 24°25.0'N, LONG 94°20.0'W. Your vessel is on course 071°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?

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?

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