INTERNATIONAL ONLY On open water, a power-driven vessel coming up dead astern of another vessel and altering her course to starboard so as to pass on the starboard side of the vessel ahead would sound which signal?
• Rule 34 – Maneuvering and Warning Signals (International Rules) • Difference between general turning signals (one short / two short) and special overtaking signals (prolonged + short blasts) • Where the International overtaking sound signals (prolonged + short) are required – specifically, whether this is limited to a narrow channel or fairway
• Ask yourself: Is the key part of this question that the vessel is overtaking, or that she is simply altering course to starboard in open water? • Think about which International Rule 34 signals apply everywhere in open water versus those that apply only in a narrow channel or fairway. • Look carefully at the answer choices: which options are overtaking signals under International Rules, and which are basic turning signals for starboard or port?:
• Verify in Rule 34 whether the signal with prolonged plus short blasts is restricted to a narrow channel or fairway under International Rules. • Confirm which signal in Rule 34 means “I am altering my course to starboard” under International Rules. • Ensure the situation in the question matches the exact condition required for using the International overtaking signals (location + type of maneuver).
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