BOTH INTERNATIONAL & INLAND While underway, you see a vessel displaying the shapes shown in illustration D006RR below. Which action should you take?

Correct Answer: Option A — Stay clear, the other vessel is maneuvering with difficulty

Illustration D006RR depicts the day shapes for a vessel restricted in her ability to maneuver (ball-diamond-ball). Under Rule 18, a vessel restricted in her ability to maneuver is not relieved of the obligation to keep clear, but other vessels should exercise caution and stay clear of her path.