You are plotting a running fix. The LOP to...

Question 1 / 2066636ee928f7522a1c519e5d

Question 1 of 2066636ee928f7522a1c519e5d

You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used?

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Question 1 of 20

66636ee928f7522a1c519e5d

You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used?

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🔍 Key Concepts

• Running fix concept: advancing an earlier Line of Position (LOP) along the DR track to a later time • How radar range arcs represent all possible positions at a fixed distance from an object • Difference between moving the ship’s position vs. changing the measured range

💭 Think About

• When you have an arc from a radar range at an earlier time and you later get a second LOP, what actually moves over time: the object, the ship, or the range measurement? • Should the shape (curved arc vs. straight line) of the LOP change when you advance it, or should it keep the same geometric form? • In a running fix, how is the vessel’s DR track used to relate the earlier observation to the later time?

✅ Before You Answer

• Make sure you keep the same radius that corresponds to the original radar range unless there is a new measurement • Confirm that what you are ‘advancing’ in time is the vessel’s DR position relative to the fixed object, not the physical object itself • Verify that the method preserves the fact that a radar range LOP is an arc of a circle around a fixed point, not a straight line

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Question 1 of 20

You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used?

The distance between LOP's should be added to the radar range and a new arc swung.

An arc should never be run forward.

The position of the object observed should be advanced to the new time and a new arc swung using the radius of the old arc.

The arc should be converted into a straight-line using offsets and then run forward.

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Question 1 / 2066636ee928f7522a1c519e5d

Question 1 of 2066636ee928f7522a1c519e5d

You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used?

Back

Question 1 of 20

66636ee928f7522a1c519e5d

You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used?

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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