Guest blog by Vincent Pica
Chief of Staff, First District, Southern Region (D1SR)
United States Coast Guard Auxiliary
While it would seem intuitive that vessels engaged in certain activities or sizes would have a certain priority that fold nicely into the concept of “stand-on” and “give-way”, it is far more complicated than just the Big Boat Rule – Big Boats Rule!
This column is about that…
What Does Rule 18 Say?
Under Rule 18, and then expanded with respect to Lights and (Day) Shapes by Rules 23-28, the priority of vessels in sight of each other is:
NUC
Not Under Command. Due to mechanical or allied reasons, this vessel cannot control itself nor maneuver. The shape/light sequence is ball-over-ball/red-over-red ("red over red, the captain is dead!") All vessels must give way to this vessel.
RAM
Restricted in Ability to Maneuver. By the nature of its work, this vessel just can't maneuver well. A dredger, for example, can't get her gear up to get out of your way, stand-on or give-way. The shape/light sequence is ball-over-diamond-over-ball/red-over-white-over-red. These two classes are often categorized as equal in priority. With that said, if a NUC is drifting down on a RAM, at least the RAM has the option to try to get her gear up…
CBD
Constrained By Draft. Surprisingly, this is not an Inland designation, where draft may matter more often. In any event, you can't force this vessel out of its channel since that would cause a collision at sea - with the bottom! The shape/light sequence is a cylinder/red-over-red-over-red.
Engaged in Fishing
This isn't your neighbor in his Grady-White with a Penn reel in hand. This is a working vessel, trawling lines or nets. The light sequence depends on whether they are fishing or trawling. The shape is constant - two inverted cones, tip to tip. If she is fishing, the light sequence is red-over-white (red over white, we be fishin' tonight.) If she is trawling, the light sequence is green-over-white (green over white, we be shrimpin' tonight.)
Sailing Vessel
Not a sailing vessel with her engine on. That just makes her a funny looking power-driven vessel.
Power-Driven
Seaplane
Since a very small percentage of boaters are familiar with the Lights and Shapes, the skipper of such vessels as those in classes 1 through 4 had better be familiar with 5 or more short blasts. Countervailing this, the vessel claiming any of these privileges must display the Shape or Lights appropriate and, if they don’t, it will weigh against them in a Court. However, remember that it is never 100-0 when the Court renders its apportionment of blame.
How does Rule 18 interact with Rule 13? Rule 13 dominates, subject to the facts. What does that mean? Well, assume that you are drift fishing in your power-driven vessel in Moriches Bay and a sailing vessel overtakes you. Despite Rule 18’s priority of order, the sailing vessel clearly is the give-way vessel in this case.
However, if you see a NUC drifting down on your stern, get out of its way. “Red-over-red, the captain is dead” – they can’t maneuver around you!
BTW, if you are interested in being part of USCG Forces, email me at JoinUSCGAux@aol.com or go direct to the D1SR Human Resources department, who are in charge of new members matters, at DSO-HR and we will help you "get in this thing…"
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