What is forward nav light sector angle?

[tim_ber]

I mean:

if you stand at the pointy end of the floaty thing (and have pulpit mounted lights), you will see green and red.

Say you are 40 feet away from the lights, how far left do you have to walk until you no longer see red and only green?

Do you see what I'm asking? I can still see a bit of red when I move quite a way to the left and was wondering.

I've searched RYA etc for the rules but just keep getting the 122.5 degrees and so forth.
Thanks

 

[colingr]

In theory you should only see red and green from dead ahead so the answel is not very far. In practice a few degrees.

Mind you if you are walking you are either someone very special or are getting wet feet!

 

[Channel Ribs]

Say you are 40 feet away from the lights, how far left do you have to walk until you no longer see red and only green?

No distance at all.

If you have two bulbs then there should be something between them, if a single bulb then it should be right in the middle of the two coloured lenses.

And it should be mounted straight too.

 

[Salty John]

I believe you are allowed 5 degrees of overlap between lights. Starboard and port lights, as well as side lights to stern light.
I don't know where this is documented, but it's what I was taught.

 

[tim_ber]

Thank you.

I have that bit of plastic dividing, but something obviously isn't quite right, but it is fixable.

Cheers

 

[Keen_Ed]

Max 3 degrees:

9) (a) (i) In the forward direction, sidelights as fitted on the vessel shall show the minimum required intensities. The intensities shall decrease to reach practical cut-off between 1 degree and 3 degrees outside the prescribed sectors.

From: http://www.sailtrain.co.uk/Irpcs/annexi.htm