Joe wrote:
Well you came closer than anyone Jeff. The key is the item towed is
mostly submerged. The boats that tow icebergs also display the all
around blue in addition to towing config lights.


In other words, it shows 3 vertical lights indicating a long
tow then a blue light as some kind of secret Texas signal?
Got it.



Usually a large tow, a long distance behind the towing vessel, will have
it's own lights to indicate it's presence.



Joe wrote:
Not in this case Doug. Never pass a blue light tow close astern. Infact
if I could not contact the vessel I'd give a min of 2 miles way.


I would not pass any vessel close if it was showing lights
for a large tow, and certainly would try to contact them.
I've never had a working vessel (other than a small shrimper
which was trawling illegally) fail to answer a VHF hail.

Fresh Breezes- Doug King