BOTH INTERNATIONAL & INLAND In a crossing situation, a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall, if possible, avoid which action?
• Rule 17 – Action by Stand-on Vessel of the Navigation Rules • Relationship between stand-on and give-way vessel in a crossing situation • How an alteration of course to port or starboard affects the risk of collision
• First, picture yourself as the stand-on vessel with the other vessel on your port side—who is supposed to keep out of the way? • If you are finally forced to maneuver, which type of course change could make your situation more confusing or dangerous for the give-way vessel? • Think about which maneuver would tend to turn you toward the other vessel’s projected track, versus away from it.
• Review the wording of Rule 17(c) about what the stand-on vessel should, if possible, avoid when finally taking action • Confirm which side (port or starboard) the other vessel is on, and how that affects a turn to port vs starboard • Make sure your choice does not contradict the basic idea that the give-way vessel should be able to predict and understand your maneuver
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