Navigation Lights

[commanderpete]

A tricolor light will draw less power than 3 seperate fixtures. If you're going to install an anchor light at the top of the mast anyway, it might make sense to install a tricolor/anchor light combination.

But, you still need deck mounted lights. You can't use an anchor light while underway (although I see it done frequently). A sailboat under power needs to show a "steaming light" and not an all-around white light.

As far as I know, the rules state that the steaming light must be located above the sidelights. You can't use a masthead tricolor with a steaming light.

I suppose you would use the tricolor offshore, for better visibility to shipping and to conserve power. Near shore, the deck mounted lights are more likely to be seen against the clutter of lights on the shore, and should be used when the engine is engaged.

Seems there are many more choices in USCG approved LED nav lights in the last year or two, and some are fairly reasonable in price. This should only get better.

[ebb]

C'pete,
The Hella lantern has the tri-light in the prescribed separations: green - red - and white stern running light - with a seen from dead ahead separation of the red and green. A slight blank space.

It also has, SEPARATE from the tri-color combo, an ALL ROUND WHITE, on top of the combo. It is a separate light but in the same lantern. This light would NEVER be turned on while the tri-color was being used. And viceversa.

Being an all round light, and UNABSTRUCTED by mast or sails,
I have seen, have downloaded, diagrams like yours above here that show this all round white (USCG Regs) USED AS A STEAMING LIGHT ON A SAILBOAT (but with sails not rigged) when the motor is running.
Imco it would be 'more' legal' than a half mast steaming light that would have 1/3, at least. of the all round requirement obstructed by the mast it is mounted on.
And in a twilight ballet of getting the boat into its berth without running into something, no reg could possibly care if the rags are up or furled. Never know, tho.

Your series of graphics don't show this. And since the tri-color option is relatively new (what, 20 years by now?) the Coast Guard may not have their diagrams up to date. Besides the all round white steaming/anchor light may be stuck in some internal committee and is left in its fuzzy status for decades to come.


Perhaps by sailor use the added FOURTH light on the masthead of a sailboat will become written into regulation. It seems to be allowed by inference and some 'quasi-official' diagrams.

The all round white is already wired on some lanterns as a STROBE light. On the highseas, day or night, with an approaching freighter, switching the strobe on to get attention might save your and your boat's butt.
Regs might someday be rewritten to include emergency scenarios like this as emergencies. Using the strobe to get the attention on the bridge of a cargo freighter. Fat Chance! Radio contact with the freighter would call off any rescue effort or USCG notification that assitence was not needed. If that is the case.

The all round anchor light from a practical aspect has to be stacked on the masthead above or below the tricolor if we have one. Cruisers forums often mention that they can recognize their boat at night - when away from it - by their all round led.
This anchor light can also be found with a PV Sunset On/Sunrise Off feature.

[commanderpete]

I think the problem with using an anchor light/tricolor combination is that the regulations require at least one meter vertical seperation between the all-around white light above the red/green sidelights.

You might be able to use the anchor light as a steaming light with red/green deck lights, but only if you block out the stern deck light. Otherwise a boat approaching from behind will see two white lights "white over white"

[ebb]

C'pete, I finally see what you are getting at.

Any boat with an all round white light ON and not anchored is a boat under power.
Any boat under power with an all round white steaming light will not have its STERN light on.
But any boat will have its port and starboard lights on.
That means, in effect, that the masthead tri-color cannot be on.... Because the tri lights cannot be turned on and off separately.
Because when steaming with an all round white light, the white stern light part of the trilight cannot be on at the same time.

But I can see that in a sailboat not switched correctly that the tri-color and the all round white could be on at the same time. And that would cause confusion for the observer.

That's why a sailboat our size should have separate port and starboard and stern light at deck level.
Cruising or offshore I would definitely include the tri-light and the all round white
anchor light.

[It's a whole other dual fixture, but I know I've seen an all led steaming light and amp-eating deck light combo that is mounted at spreader height. Personally this is an excellent idea. And if attracting attention at sea these lights are perfect.
However, for picky regs I don't see how cutting a major portion of the steaming light by mounting it on the front of the mast makes it legal.
But do see that the mast will create a beneficial shadow for the poor guy in the cockpit.]

Also, I don't recall seeing a halfmast steaming light shown in any required nav light diagram.
Conceivably it is less legal than a tri-light with an all round anchor/steaming light.


Just to make things difficult: I have a diagram here that shows a white MASTHEAD steaming light that has a wedge blacked out on the aft side that corresponds exactly with the stern light wedge shaped light down on the DECK LEVEL. Also the red/green side lights are on.
Thus, you'd have your three normal deck level lights with a three sided white masthead steaming light.
This evidently conforms exactly to USCG rules for a sailboat under power.


BUT, a masthead 360 white light IS also Regulation for steaming under power.....
Have the diagram to prove it.
THAT IS IF YOU TURN OFF THE DECK LEVEL STERN LIGHT AND keep your sidelights on.
That seems simple enough.
As a bonus you get an allround anchor light when the side lights are off.

Whewww!

[commanderpete]

The power draw of the steaming light is not much of a concern, if your engine has a charger.

I don't think powerboats are really looking for lights up off the water. I look for masthead lights, and I see them frequently, although the light usually turns out to be a plane, helicopter, star, tower or something

You can even mistake a traffic light on land for another boat

By the way, I called Sea Dog about their new LED lights C-147 mentioned above. The guy wasn't familiar with the product but eventually told me they don't make an LED stern light. I haven't been able to find this line of products for sale anywhere yet.

[ebb]

C'pete,
Thanks for keeping the discussion going.

Did get on to
www.sea-dog.com
new items
where we find a selection of stamped 304 LEDs nav lights:

pair of horizontal mount port and starboard lights (400035)
a combo horizontal mount bow light (400050-1)

a rectangular vertical mount transom light (400065-1)
Here's the STERN LIGHT. But design is different.

a pair of vertical mount side lights (400080).

AND they also have a couple of interesting telescoping all round white fixtures
one is 24"/48". The other 34"/60" (400016-1). (Assume these are small powerboat allround whites - but if it is appropriate for us either one could be mounted in the pushpit line of stanchions, almost out of the way and ready to be extended for steaming.)

These are all 2nm Colreg and LED.
BUT, we don't find any data sheets, instructions, nothing, on these fixtures
So we don't know about any warranty
or EMI they might be emiting.
Would be nice to know if you use a handheld VHF.

They don't have any mast mounted stuff.
__________________________________________________ _______________________________
I've read where boats these days get robbed of their pricey LED lights.

In the McMasterCarr catalog you can find 18-8 tamper-resistant machine screws. 'Pin in head' Torx have a post in the middle so a regular torx driver cannot be inserted. And a spanner head which has two small separated holes that also requires a special bit. Page 3056 for the screws. Page 2821 for the screw drivers and Page 2810/11 for 1/4" hex shank bits for these special screws. The Torx would be my choice.
And the Torx pin-in-head hollow head bit is not likely to be found in any jerk's Leatherman.

[Commander 147]

CPete and Ebb

I also called Sea Dog to inquire about the stern light. I'm not sure why but most LED nav light manufacturers seem to be quick to come out with a red/green version but forget completely about the white. Which also seems to be the case here. It may be that white light from LEDs is harder to produce and it may somewhat inhibit the design process.

At any rate the guy I talked to said he would at least get the ball rolling with his engineering dept. to see if they could come up with a solution.

Ebb there is a tech services guy named Mark Barnhart that may be able to give you an answer on the EMI emission radius on the units. His e-mail address is

'techserv@sea-dog.com'