[Sentoa] Anchor Light

[Charles E. Billings]

Your switch is most likely wired so that power goes to the red, green, stern, and steaming light (front half of your "anchor light" in the navigation position.   In the anchor position, power is supplied to both the front and rear half of the upper (anchor) light.   It is also possible that your tug (like mine) does not have a stern light, so the all around light on the mast serves as both a steaming light and an anchor light.   In the "anchor" position, power is supplied to the mast head light only (showing 360 degrees).   In the "navigation" position, power is supplied to the mast head light (showing 360 degrees), and both side (red & green) lights.

As you may recall, vessels less than 12 meters (39.4') in length are required to have mast head light (showing 225 degrees), stern light (135 degrees), and side lights (red & green, showing 112.5 degrees each).   However, stern light and masthead light may be combined (360 degrees) at the masthead on vessels less then 12 meters.

Vessels between 12 and 20 meters in length are required to have side lights (red & green), mast head light and stern light.   However, the side lights may be combined at the bow.

The 37 tug appears to be right on the cusp of being under or over 12 meters....I guess it all depends on how one measures the vessel.   While it is labeled a 37' Nordic Tug, my understanding is that it's almost 40 feet LOA so would really fall in the over 12 meter category.

Incidentally, NOBSKA came from the factory with no faux stack.   Instead, she has a shortened sailboat mast (with all around light) and boom, used for a cargo lift and for carrying a steadying sail.

Charlie Billings
NOBSKA, 32-057 (1991)
Bremerton YC, WA
  ----- Original Message ----- 
  From: Kirk Glenn, CPA 
  To: 'South East Nordic Tugs Owners' Association (SENTOA)' 
  Sent: Wednesday, October 21, 2009 9:01 AM
  Subject: [Sentoa] Anchor Light


  I recently replaced the corroded light fixture (anchor light ) . As I recall there were only two wires to the light. While I am underway the anchor light comes on when I have the switch set to navigation light. When at anchor I set the switch to anchor and only the anchor light comes on as it should.

  Why does the anchor light come on when I am running-is it wired that way at the factory?  When we bought the boat the anchor light was not functioning. I did not change anything in the cabin or at the console.

   

  Comments?

   

  Kirk Glenn

  First Light 

  37-73

   



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