🔍 Key Concepts

• Rule 25 – Sailing Vessels and Vessels Under Oars (Navigation Rules) • The special tricolor lantern that COMBINES sidelights and stern light for certain sailing vessels • Length limits and when fishing/power-driven vessels may NOT use sailing‑vessel light options

💭 Think About

• First, decide which answer choices are sailing vessels under sail alone, and which are power‑driven or fishing vessels. • Then, recall: for which maximum length is a sailing vessel allowed to use a single combined lantern (sidelights + stern light) at or near the top of the mast? • Eliminate any vessel type that has its own special lighting requirements (like vessels engaged in fishing or power‑driven vessels).

✅ Before You Answer

• Verify in Rule 25 that the combined sidelights-and-stern-light lantern (tricolor) applies only to sailing vessels under sail alone. • Check the maximum length in meters allowed for that tricolor lantern and compare it to each choice. • Confirm that vessels engaged in fishing or under oars follow different lighting rules and cannot use the sailing‑vessel tricolor option.