1.3. Conduct of vessels in sights of one another Flashcards
(a) Responsibilities between vessels, action of give way and stand on vessels (b) Action to take to avoid collision by use of models for all cases including end on, crossing and overtaking (c) Action to take when in a multiple vessel situation by use of models (d) Describe the procedures for routine navigational and collision avoidance manoeuvres (e) Describe actions when officer of the watch calls the Master when in an close quarters situation or in extremis
What are the Responsibilities between vessels
What Action must a Give way vessel Take?
Every vessel which is directed to keep out of the way of another vessel shall, as far as possible, take early and substantial action to keep well clear.
What action must a stand on vessel take.
(a)
(i) Where one of two vessels is to keep out of the way the other shall keep her course and speed.
(ii) The latter vessel may, however, take action to avoid collision by her manoeuvre alone, as soon as it becomes apparent to her that the vessel required to keep out of the way is not taking appropriate action in compliance with these Rules.
(b) When, from any cause, the vessel required to keep her course and speed finds herself so close that collision cannot be avoided by the action of the give-way vessel alone, she shall take such action as will best aid to avoid collision.
(c) A power-driven vessel which takes action in a crossing situation in accordance with subparagraph (a)(ii) of this Rule to avoid collision with another power-driven vessel shall, if the circumstances at the case admit, not alter course to port for a vessel on her own port side.
(d) This Rule does not relieve the give-way vessel of her obligation to keep out of the way.
What to do if in a Head on Situation?
(a) When two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision each shall alter her course to starboard so that each shall pass on the port side of the other.
(b) Such a situation shall be deemed to exist when a vessel sees the other ahead or nearly ahead and by night she could see the masthead lights of the other in line or nearly in a line and/or both sidelights and by day she observes the corresponding aspect of the other vessel.
(c) When a vessel is in any doubt as to whether such a situation exists she shall assume that it does exist and act accordingly.
What should you do if your vessel is in a crossing situation?
The vessel with the other on her own STBD side shall keep clear and avoid crossing ahead of the other vessel
How would you know and what should you do if your vessel is overtaking another vessel?
What do you as master do if called to the bridge in ROC or close quarter situation.
As per Rule 7 - ROC, If time and conditions allows for it use all available means to determine if ROC or dangerous situation is indeed developing or if OOW is acting on scanty information, look out the window and look for vessels with a steady bearings at close range / large vessel / towing vessel / Dangers to Navigation in close proximity. Asumeing the vessel is not in confined water as double watches would have to be kept at such times Briefly study the chart for any dangers of navigation in the proximity of the vessel.
Take Action as per Rule 8 - Bold alteration of course readily aparent by other vessels involved both visually and by radar. If you need more time consider slowing down, stop or reverse propultion. If none of the options is avalable you may make an departure from the rules by any action that will get your vessel clear of imediate danger as per Rule 2b
