Chart Navigation & Plotting · Fixes & LOPs
A 'fix' is best defined as:
- AThe intersection of two or more simultaneous lines of position✓ Correct
- BAn estimated position from one bearing
- CA position derived from course and speed alone
- DThe vessel's charted destination
Explanation
A fix is the intersection of two or more lines of position taken at (or reduced to) the same time. A single LOP only narrows the position to a line; crossing two or more LOPs pins it down.
Authority: Bowditch, Pub. No. 9 (lines of position)
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