BOTH INTERNATIONAL & INLAND You are on a sailing vessel. While under sail you decide to use your engine to assist in propulsion. Which of the day signals shown in illustration D016RR below would you display?

Correct Answer: Option D — None of these day signals are correct.

COLREG Rule 25(e) requires a vessel proceeding under sail when also being propelled by machinery to exhibit forward, where it can best be seen, a conical shape, apex downward. None of the towing or restricted maneuverability day signals apply to a dual-propelled sailing vessel.