Rule 19. Conduct of vessels in Restricted Visibility.

Section III (for restricted visibility)

Rule 19. Conduct of vessels in Restricted Visibility.



Restricted visibility
(a) Rule 19 applies to vessels (not in sight of one another) in or near restricted visibility.
(b) All ships shall proceed at a safe speed for the condition of visibility (see Rule 6). A power-driven vessel shall have her engine(s) on stand-by for immediate manoeuvre.
(c) All ships shall comply with Section I of this Part e.g. Rules 5 (lookout), 6 (safe speed), 7 (risk of collision), 8 (action to avoid collisions), 9 (narrow channels) and 10 (TSS) with due regard for the visibility conditions.
(d) If another vessel is detected by radar alone, and a close-quarters or collision risk is suspected, a vessel should take early and substantial action to avoid the other, but:
(i) avoid any turn to port for a vessel detected forward of the beam, except for a vessel being overtaken,
(ii) avoid any change of course toward a vessel abeam or abaft the beam.
When the fog signal of another vessel is heard, apparently forward of the beam, a vessel should reduce speed to the minimum at which she can maintain her course, or if necessary stop, and navigate with extreme caution until there is no risk of collision.



(Q) What does Rule 19 mean to you?
(a) This Rule applies to all vessels in or near an area of Restricted Visibility.
IN OTHER WORDS: -
(THERE ARE NO STAND_ON VESSELS IN RESTRICTED VISIBILITY)

(Q) What would you say a safe speed was in Restricted visibility?
(a) A speed that you could stop your vessel in half the visible distance you could see, so you could alter using Rule 19 (d) parts (i) and (ii)

(Q) What does part (a) say?
(a) This Rule Applies to all vessels in or near an area of restricted visibility

(Q) What does part (b) say?
(a) Go at a safe speed and have your engines ready for immediate manoeuvre's

(Q) What does part (c) say?
(a) Have Due regards to the prevailing condition

(Q) What does Rule 19 (d) say?
(a) A vessel which detects by radar alone the presence of another vessel shall determine if a close-quarter situation is developing and/or risk of collision exists. if so she shall take avoiding action in ample time, providing that when such action consists of an alteration of course, so far as possible the following shall be avoided

(Q) What does Rule 19 (d) Part (i) say?
(a) Avoid an alteration to port for a vessel forward of the beam, other than for a vessel being overtaken

(Q) What does Rule 19 (d) Part (ii) say?
(a) Avoid an alteration towards a vessel abeam or abaft the beam

(Q) What does Rule 19 (e) say?
(a) Except where it has been determined that a risk of collision does not exist, every vessel which hears apparently forward of her beam, the fog signal of another vessel, or which cannot avoid a close-quarters situation with another vessel forward of her beam, shall reduce her speed to a minimum at which she can be kept on her course. Shall if necessary take all her way off and in any event navigate with extreme caution until danger of collision is over.