We've used LED - Red/Green/White on the top of the mast all LED. On Deck we have Red/Green/Stern and steaming light half way up the mast, all incandescant (they came with the boat). We wired it all to a 3 position switch - off - Sailing LED lights - Motoring deck incandescant lights.

This ensured that when the engine was running we only needed to flip one switch and we would never have both sets of lights operating at
the same time.

--
Cheers,
    Jeff Nelson
    Muir Caileag
    C&C 30
    Armdale Y.C.
    Halifax

On 4/5/2016 12:23 AM, Rick Rohwer via CnC-List wrote:
When under power you are no longer a sailing vessel. White Light showing 225 over port and starboard running lights. Just one more tug boat.

On Apr 4, 2016, at 19:26, Rick Brass via CnC-List <[email protected] <mailto:[email protected]>> wrote:


Sent from my iPhone

I don’t recall any requirement in the COLREGS that a “Masthead” light actually be at the top of a mast. And since the “Masthead light” identifies that the boat being observed is a power driven vessel, I would be kind of surprised if there was such a requirement.

Sailing Vessels display only red and green bow lights and a 135 degree white stern light (or, in the alternative a red, green and white tricolor light at the top of the tallest mast).

I suppose that’s why sailors like you and I think of the white light on the front of the mast as a Steaming Light. We only turn it on when we are “steaming” and our sailboat becomes a tall power boat.

The number and positions of the “masthead lights” on a power driven vessel are spelled out in the COLREGS and will indicate the length of the boat (and fore from aft). I do think they need to be the highest lights on display, but I’ve seen masthead lights affixed to a bracket on the top of the wheelhouse on a trawler, and to the strut holding the radar antenna on a tug, and those don’t count as a masts in my book.

Rick Brass


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