Shen44 wrote:


Why would three lights be used?

Don' t know.


Never seen this, but would guess it might used to show the edges of a narrowing
channel, to a certain point.

Don't think that's what he's looking for....

What is a Morse Code "A" light mean?

safe water at center of a channel


This is on the first buoy (or last, depending on your direction) you will
encounter at major ports. Can NORMALLY be passed on either side, but this is
not always true .... check your chart and local regs....called the "Sea Buoy"

Shen

Not the only placed you could see this buoy, but the place most will
encounter it.

otn