BOTH INTERNATIONAL & INLAND Vessel "A" is...

Question 1 of 2707066636eeb28f7522a1c51bdab

BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in illustration D017RR below and will pass without changing course. Which light will vessel "A" observe on vessel "B"?

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Question 1 of 27070

BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in illustration D017RR below and will pass without changing course. Which light will vessel "A" observe on vessel "B"?

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🔍 Key Concepts

• Rule 13 – Overtaking (Navigation Rules): what it means to be more than 22.5° abaft the beam • Arcs of visibility for sidelights vs stern light (Navigation Rules Annex I) • Difference between a stern light and a yellow towing light in color, arc, and when each is used

💭 Think About

• From the illustration, decide where vessel A is relative to vessel B’s beam: is A ahead of, abeam of, or abaft B’s beam? • Based on that relative position, which navigation lights on B are designed to be visible to a vessel located where A is? • Ask yourself whether the situation involves towing at all, and if not, what that implies about which lights you should expect to see.

✅ Before You Answer

• Verify the arc of visibility (in degrees) for a sidelight and compare it to where an overtaking vessel sits • Confirm that a stern light is white and check its arc of visibility and purpose • Check when a yellow towing light is required and whether the diagram indicates a towing situation at all