🔍 Key Concepts

• Navigation Rules Rule 26 – Fishing Vessels (special red/white light combinations) • Navigation Rules Rule 29 – Pilot Vessels (special white/red lights) • Difference between all-round vertical lights and normal sidelights/sternlights for sailboats and power-driven vessels

💭 Think About

• Look closely: are these lights sidelights on the bow, or two all-round lights in a vertical line seen from any direction? What type of vessel uses that configuration? • Compare the color order here (red over white) with the color order used by pilot vessels and trawlers. Which rule matches this exact stack? • Ask yourself: which of the four choices normally shows standard sidelights and a sternlight only, and which has a unique vertical light signal to show its special activity?

✅ Before You Answer

• Verify in the Navigation Rules that fishing vessels other than trawling and pilot vessels each have distinctive vertical light combinations; check which one is red over white. • Confirm whether a sailboat or motorboat (not engaged in special operations) would ever show just two all-round lights like this with no sidelights shown in the diagram. • Make sure you are thinking of all-round lights indicating the vessel’s type/operation, not the normal running lights for direction of travel.