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Author Topic:   Visibility of Navigation Lamp on 1965 Boston Whaler 13-footer
Boston Whaler1965 posted 10-28-2010 09:47 PM ET (US)   Profile for Boston Whaler1965   Send Email to Boston Whaler1965  
[What] distance in nautical miles can the factory [combined sidelight lamp] on a 1965 Boston Whaler 15-footer be seen? The reason I am asking is because I have to replace my whole lamp assembly and chock. I found the one Specialty Marine sells-- which is nice--but [I] wondered if [I] should install it with a little larger light that looks very similar but can be seen for a known two nautical miles. The one from [S]pecialty [M]arine does not come with a marine wire tinned pigtail. I called them and they could only tell me that it is OEM-specification-compliant, but they do not have the slightest idea how far it can be seen. It is a very small light, and I am only assuming it can be seen only for one mile.

I did find a nice stainless replacement that looks almost the same but can be seen for two nautical miles and a hell of alot cheaper. I would still have to buy the whole chock assembly with the lamp, though, because they seperate the lamp from the chock and sell it seperately. But you cannot buy a chock without the lamp. Mine is badly discolored and pitted. While we are on the subject - Does anyone know the regulation on the necessary height [for the white all-round light] for the exact same boat? Thank you in advance guys for any help - Paul.

jimh posted 10-28-2010 10:20 PM ET (US)     Profile for jimh  Send Email to jimh     

The visibility of navigation lights are given in

The minimum visibility of the sidelight of a vessel less than 12-meters in length is one mile. The year the boat was manufactured does not affect the rule. Only the length of the boat affects the required visibility.

Boston Whaler1965 posted 10-28-2010 10:29 PM ET (US)     Profile for Boston Whaler1965  Send Email to Boston Whaler1965     
Thank You Jim - I have learned a lot on this site and I do appreciate the help you have given me on restoring this boat. - Thank You again ...Paul
jimh posted 10-28-2010 10:29 PM ET (US)     Profile for jimh  Send Email to jimh     
There is a required vertical separation between the sidelight and the white all-round light of one meter. Most small boats are rigged with a white all-round light and do not have a masthead light and stern light.

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