Part C - Lights And Shapes Flashcards
RULE 20 - Application
A - When must you comply with these rules?
B - What time of day must these be exhibited?
C - In what other circumstance would you exhibit these?
D - When to comply with Shapes?
E - What Annex applies to Lights & Shapes?
(a) Rules in this part shall be complied with in all weathers.
(b) The Rules concerning lights shall be complied with from sunset to sunrise, and during such times no other lights shall be exhibited, except such lights as cannot be mistaken for the lights specified in these Rules or do not impair their visibility or distinctive character, or interfere with the keeping of a proper look-out.
(c) The lights prescribed by these Rules shall, if carried, also be exhibited from sunrise to sunset in restricted visibility and may be exhibited in all other circumstances when it is deemed necessary.
(d) The Rules concerning shapes shall be complied with by day.
(e) The lights and shapes specified in these Rules shall comply with the provisions of Annex I to these Regulations.
RULE 21 - DEFINITIONS
A - Masthead Light
B - Sidelight
C - Sternlight
D - Towing Light
E - All round light
F - Flashing Light
(a) “Masthead light” means a white light placed over the fore-and-aft centreline of the vessel showing an unbroken light over an arc of the horizon of 225° and so fixed as to show the light from right ahead to 22.5° abaft the beam on either side of the vessel.
(b) “Sidelights” means a green light on the starboard side and a red light on the port side each showing an unbroken light over an arc of the horizon of 112.5° and so fixed as to show the light from right ahead to 22.5° abaft the beam on its respective side. In a vessel of less than 20 m in length the sidelights may be combined in one lantern carried on the fore-and-aft centreline of the vessel.
(c) “Sternlight” means a white light placed as nearly as practicable at the stern showing an unbroken light over an arc of the horizon of 135° and so fixed as to show the light 67.5° from right aft on each side of the vessel.
(d) “Towing light” means a yellow light having the same characteristics as the “sternlight” defined in paragraph (c) of this Rule.
(e) “All-round light” means a light showing an unbroken light over an arc of the horizon of 360°.
(f) “Flashing light” means a light flashing at regular intervals at a frequency of 120 flashes or more per minute.
RULE 22 - VISIBILITY OF LIGHTS
A - IN A VESSEL OF 50M OR MORE IN LENGTH
B - IN A VESSEL OF 12M OR MORE BUT LESS THAN 50
C - VESSEL LESS THAN 12 IN LENGTH
D- IN INCONSPICUOUS OR PARTLY SUBMERGED VESSEL OR OBJECTS BEING TOWED
A - 50M OR MORE IN LENGTH
MASTHEAD - 6
SIDELIGHT - 3
STERNLIGHT - 3
B - IN VESSELS OR 12M OR MORE BUT LESS THAN 50
MASTHEAD - 5’ EXCEPT WHERE VESSEL IS LESS THAN 20M - 3’
SIDELIGHT - 2’
STERNLIGHT - 2’
TOWING LIGHT - 2’
WHITE RED GREEN OR YELLOW ALL ROUND LIGHT - 2’
C- LESS THAN 12M IN LENGTH
MASTHEAD - 2’
SIDELIGHT - 1’
STERNLIGHT - 2’
TOWING LIGHT 2’
WHITE RED GREEN OR YELLOW ALL ROUND LIGHTS - 2’
D- INCONSPICUOUS PARTLY SUBMERGED VESSELS OR OBJECTS BEING TOWED
ALL ROUND WHITE LIGHT - 3’
What lights shall a Power Driven Vessel Underway exhibit?
A - (i) Masthead light foward
(ii) A second masthead light abaft of and higher than the foward one. Vessels of less than 50m shall not be obliged but may do so.
(iii) Sidelights
(iiii) Sternlight
Rule 23 Continued…
A - What else must an air cushioned vessel exhibit when operating in non displacement mode?
B - How about a WIG craft when taking off, landing & in flight near the surface?
A - All round flashing yellow light
B - As well as that of a power driven vessel, a high intensity all-round flashing red light
Rule 24 - Towing & Pushing
What shall a PDV when Towing Exibit?
Two masthead lights in a vertical line, three masthead lights when the length of the tow from the stern of the towing vessel exceeds 200m.
Sidelights
Sternlight
Towing Light in a vertical line above stern light
When length of tow exceeds 200m, a diamond shape where it can best be seen
Rule 24 - Towing & Pushing
What lights shall a Pushing vessel ahead or Towing alongside when not in a composite unit exhibit?
Two masthead lights in a vertical line
Sidelights
Sternlight
(Shall also comply with Masthead lights for vessels 50m & over)
Rule 24 e
A vessel or object being towed shall exhibit?
(e) A vessel or object being towed, other that those mentioned in paragraph (g) of this Rule, shall exhibit:
(i) sidelights;
(ii) a sternlight;
(iii) when the length of the tow exceeds 200 m, a diamond shape where it can best be seen.
Rule 24 f
Provided that any number of vessels being towed alongside or pushed in a group shall be lighted as one vessel…. How about those not part of a composite unit
A - Pushed Ahead
B - A vessel being towed alongside
A - At the forward end - sidelights
B - Stern light & at the forward end - sidelights
Rule 24 G
An inconspicuous, partly submerged vessel or object, or combination of such vessels or objects being towed, shall exhibit:
A - If it is less than 25m in bredth?
B - If it is more than 25m in bredth?
C - If it exceeds 100m in length
D - Day shapes location & what if the tow exceeds 200m?
(G) An inconspicuous, partly submerged vessel or object, or combination of such vessel or objects being towed, shall exhibit:
(i) if it is less than 25 m in breadth, one all-round white light at or near the forward end and one at or near the after end except that dracones need not exhibit a light at or near the forward end;
(ii) if it is 25 m or more in breadth, two additional all-round white lights at or near the extremities of its breadth;
(iii) if it exceeds 100 m in length, additional all-round white lights between the lights prescribed in sub-paragraphs (i) and (ii) so that the distance between the lights shall not exceed 100 m.
(iv) a diamond shape at or near the aftermost extremity of the last vessel or object being towed and if the length of the tow exceeds 200 m an additional diamond shape where it can best be seen and located as far forward as is practicable.
Rule 24 H talks about impracticality of these rules, what shall you do instead?
(h) Where from any sufficient cause it is impracticable for a vessel or object being towed to exhibit the lights or shapes prescribed in paragraph (e) or (g) of this Rule, all possible measures shall be taken to light the vessel or object towed or at least to indicate the presence of such vessel or object.
Rule 24 I Talks about a vessel not normally involved in towing operations, what lights shall the exhibit instead?
(i) Where from any sufficient cause it is impracticable for a vessel not normally engaged in towing operations to display the lights prescribed in paragraph (a) or (c) of this Rule, such vessel shall not be required to exhibit those lights when engaged in towing another vessel in distress or otherwise in need of assistance. All possible measures shall be taken to indicate the nature of the relationship between the towing vessel and the vessel being towed as authorised by Rule 36, in particular by illuminating the towline.
