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[Netleyned]

Reference the thread in the sales section on Empire Tug Lights
Here is a handy reference from Edinburgh Model Boat Club

http://www.edinburghmodelboatclub.org.uk/resources/navlights.pdf


Ned

[bosun]

I cant open the thread re Edinburghmodel boat club but I refer you to this.
Towing Astern
 
Towing Astern
 Ablestock.com/AbleStock.com/Getty Images "Towing astern" means the tug is in front of the barge or string of barges, called a tow, and pulls them after itself. The tow astern presents special maneuvering problems, since the two cannot stop quickly. This means that, should the tug stop, the tow might run over the tug. The tug towing astern carries two white mast lights in a vertical line as well as the red and green navigational lights on its port and starboard sides. It will also have a yellow towing light above a white stern light. A tow more than 200 meters long is marked with an unlighted diamond shape on a staff at all times. The tow is illuminated at night by a spotlight from the tug. A tow less than 200 meters long must have side lights -- red to port and green to starboard -- and a white stern light.


Read more: Towing Methods for Tug Boats | eHow.co.uk http://www.ehow.co.uk/info_8548219_towing-methods-tug-boats.html#ixzz1TqqRANaF

also

http://www.modelboatmayhem.co.uk/forum/index.php?topic=2778.0
 Neither one explains the Green over Red mast lights in the original post
Bosun

[farrow]

Read the rules you are only half right. Two masthead lights is a tug engaged in towing or activelly attached and working where the tow is under two hundred meters, if it is over two hundred meters the total length of stern of tug to stern of tow then the tug sports a third vertical white towing masthead light. If the tow is over two hundred meters then on the stern of the towed object an all round white light at night is displayed and the day time a black ball shape. If towing a tow alongside then the towed vessel displays port and starboard lights to complement the tugs lights. Recently the rules where changed to allow a tug towing a long awkward tow where her ability to monouvre is severely affected she may show red-white red lights for a vessel hampered in her ability to monouvre in addition to her normal lights.