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post #6 of Old 01-03-2003
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collision course - Tip

I believe that Duane''s post brings up an important point. Under COLREGS The obilgations of the stand-on vessel are as follows:

(ii) The latter vessel (Stand-on)may however take action to avoid collision by her maneuver 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 accordance 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.

In other words, a stand on Vessel is actually allowed to alter course to avoid collision if it is done in a manner that should be obvious to the other vessel. In the case cited by Duanne, by heading up and slowing down to delay a tack, as stand on vessel you have actually done the right thing. COLREGS further lists the following permitted alterations in course to avoid collision;

(c) If there is sufficient sea room, alteration of course alone may be the most effective action to avoid a close-quarters situation provided that it is made in good time, is substantial and does not result in another close-quarters situation.

(d) Action taken to avoid collision with another vessel shall be such as to result in passing at a safe distance. The effectiveness
of the action shall be carefully checked until the other vessel is finally past and clear.

(e) If necessary to avoid collision or allow more time to assess the situation, a vessel may slacken her speed or take all way off
by stopping or reversing her means of propulsion.


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