Originally Posted by pcmm
I'd like to know where that is in the col regs!! otherwise that's incorrect.
a) Masthead: light White light with unbroken visibility for 225* centered dead ahead.
b) Sidelights: Red & green lights placed at the side of the vessel with unbroken visibility from dead ahead to 112.5* aft on each side
c) Sternlight: White light with unbroken visibility for 135* centered dead aft.
e) All around light: Light with unbroken visibility for 360*.
lights required for Sailing:
25.b: Tricolor at or near mast head
2] Rule 25.a: Sidelights (or Bi-color rule 21.b for vessels under 12m) plus stern light
3] Rule 25.c: Sidelights, stern light plus red over green mast lights
4] Rule 25.d: Sailboats under 7m can have truly minimal lights [my interpretation is stupid lighting
, as in you would be stupid to intentionally go with this lighting].
Lights required for Motoring
1] Rule 23.a.i, .iii, .iv: Masthead, sidelights, sternlight for vessels under 50m
2] Rule 23.d: side lights and all around white light for vessels under 12m
For sailboats the unobstructed view requirement limits the placement of side lights to locations above or below foresails.
Height of lights
Annex 1 Section 2.c: Vessels 12-20m the masthead light shall be at least 2.5m above the gunnel.
A1.S2.d: Vessels <12m the masthead light may be below 2.m but shall be at least 1m above the side lights.
A1.s2.g: The sidelights of a power-driven vessel shall be placed at a height above the hull
not greater than three quarters of that of the forward masthead light. They shall not be so low as to be interfered with by deck
A1.s2.h: The sidelights, if in a combined lantern and carried on a power-driven vessel of less than 20 meters in length, shall be placed not less than 1 meter below the masthead light.
If you want to take a risk that some coasty, US or otherwise, won't ding you for the 3/4 height limit on sidelights then you could put a masthead (steaming) light on a post 1.01m above the tri-color at the masthead. That's kind of impractical.
Any arrangement that puts the while steaming/masthead light below a colored sidelight is a violation of the rules.
Putting the steaming/masthead light below the top of the jib
puts you in violation if you motorsail with the jib up because it will be obscured by the jib for part of its required arc