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- Q421 - Navigation Problems: Chart Plot
35. You alter course to make good 076°T from your 2200 fix, and estimate you will make 13.6 knots over the ground. If the visibility is 5.5 miles, what is the earliest time you will sight Falkner Island Light? (nominal range 13 miles)
The controlling range is limited by visibility to 5.5 NM; the distance to the intersection of your track and the 5.5 NM visibility circle is 8.2 NM, requiring 36 minutes at 13.6 knots, resulting in a sighting time of 2236.
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