What does a single line of position combined...

Question 1 of 31048n9UXa5T9CLFdgvTb7TKv

What does a single line of position combined with a dead-reckoning position results in?

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Question 1 of 31048

Q

What does a single line of position combined with a dead-reckoning position results in?

🔍 Key Concepts

• Line of position (LOP) vs a plotted fix • Meaning of dead-reckoning (DR) position and what it is based on • How a running fix or estimated position is constructed on the chart

💭 Think About

• Ask yourself: Does one LOP alone ever give you an exact geographic position, or only a line on which you might be? • Think about what extra information the DR position provides when combined with a single LOP—are you using past motion over time or just one instant in time? • Which term describes a position that relies partly on actual observation and partly on predicted motion from a previous known point?

✅ Before You Answer

• Verify how many independent LOPs are required for a true fix on a paper chart. • Recall the definition of dead-reckoning (DR): it uses course and speed from a known point, with no outside observations. • Check which choice corresponds to a position that is not a full fix, but improves on a pure DR by adding one observed LOP.