Weekly quiz: Christmas tree at sea!

By Nicolas

‘Tis Christmas tree season! 🎄

Now suppose you come across one at sea!

Questions

🔹 What is this vessel and what do its navigation lights mean?

🔹 And bonus question: supposing you see this on your port side, who must do what?

👉 Reply on one of our social media below. We’ll post the solution right here next Sunday!

Answers

Thank you all for taking part in this quiz. Several of you have provided correct answers.

It’s big indeed: a mechanically propelled vessel over 50m long, as shown by the two white masthead lights. You can see it on its starboard side, since you can see its green light. As for the three red-white-red lights, they signal that the boat has restricted manoeuvrability, which suggests it might be dragging something in the water. To correctly identify the navigation lights, refer to the ColRegs.

Whether you’re on a sailboat or a motorboat, the other boat is favored if it has restricted maneuvering capacity. If you’re on a collision course, you must take evasive action. To remove any uncertainty about how far away, etc., the best thing to do is to call over the VHF to agree on a course of action.