Deck: General Navigation

Question 223 of 2,138

The Light List shows that a navigational light has a nominal range of 5 miles and a height above water of 21 feet (6.4 meters). Your height of eye is 32 feet (9.8 meters) and the visibility is 1.0 mile. At what approximate range will you first sight the light?

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Al Alden Ward · Sep 29, 2019

I thought VISIBILITY is how far you can see. So in fog you cant see as far as you can in a clear day. So on a clear day you should see the marker 5 miles away. But in poor VISIBILITY of 1 mile I believe I can only see one mile.

Deck: General Navigation

The Light List shows that a navigational light has a nominal range of 5 miles and a height above water of 21 feet (6.4 meters). Your height of eye is 32 feet (9.8 meters) and the visibility is 1.0 mile. At what approximate range will you first sight the light?

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