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Old 05-06-2008, 05:28 PM
Bob Reynolds Bob Reynolds is offline
 
Join Date: Apr 2006
Location: Paragould, AR or on m/v MAGNOLIA
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Jim,

Rule 30 of the Navigation Rules states that "a vessel at anchor shall exhibit where it can best be seen(i) in the fore part, an all-around white light or one ball; and (ii) at or near the stern and at a lower level than the light described in subparagraph (i) an all-round white light,"

The rules have changed a little from time to time over the years, but there has always been a provision for this. Yes, they are still used -- you see them on ships at anchor in the Mississippi River all the time. Maybe Capt. Ted will post a picture of one. There are other dayshapes as well (servicing aids to navigation is a common one) some you are less likely to see than others, simply because the situation they are meant to call attention to don't occur that often. But, anchoring does, and they do still use the black ball for "at anchor".
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