Lights and Shapes Flashcards
visibility of lights vessels >50m
Masthead Light 6 miles
Sidelight 3 miles
Sternlight 3 miles
Towing Light 3 miles
White, Red, Green all round Light 3 miles
Visibility of lights vessels greater than 12m less then 50m
Masthead Light 5 miles <20m 3 miles
Sidelight 2 miles
Sternlight 2 miles
Towing Light 2 miles
White, Red, Green all round Light 2 miles
Visibility of lights vessels less than 12m
Masthead Light 2 miles
Sidelight 1 mile
Sternlight 2 miles
Towing light 2 miles
White, Red, Green all round Light 2 miles
PDV Underway
Masthead Light forward
Second Masthead Light Abaft and Higher than the forward one >50m
Sidelights
Sternlight
Air cushion vessel
In addition to the lights for a PDV Underway
also shall exhibit an all round flashing yellow light
WIG
when taking off, landing and in flight near the surface in addition to the lights for a PDV Underway a high intensity all round flashing red light
PDV <12m
All round white light
sidelights
PDV <7m <7knots
All round white light
Sidelights if practiable
Masthead Light or All round white Light on PDV <12m
may be displaced from the fore and aft centreline of the vessel if centreline fitting is not practicable. provided that the side lights are combined in a lantern which shall be carried in one lantern which shall be on the fore and aft centreline or located as nearly as practicable in the same fore and aft line as the masthead light or the all round white light
Towing Vessel
Two masthead lights in a vertical line
when length of tow exceeds 200m three masthead lights in a vertical line
side lights
sternlight
towing light in a vertical line above the sternlight same as sternlight visability
Day shape if tenth of tow exceeds 200m a diamond shape where it can best be seen
Pushing Rigidly Connected in a composite unit
they shall be regarded as one power driven vessel
PDV when pushing ahead to towing alongside except in the case of a composite unit
two masthead lights in a vertical line
sidelights
stern light
Vessel or object being towed
sidelights
sternlight
when length of tow exceeds 200m a diamond shape where it can best be seen
Vessel being pushed ahead not part of a composite unit
exhibit at the forward end sidelights
Vessel being towed alongside
sternlight and at forward end sidelights