🔍 Key Concepts

• Rule 24 – Towing and Pushing: required masthead and towing lights for tows under and over 200 meters • Rule 27 – Vessel Restricted in Her Ability to Maneuver (RAM): red‑white‑red all‑round lights and their use with other lights • Difference between a stern light and a towing light and when each is used

💭 Think About

• From the illustration, decide whether the tow should be treated as less than 200 meters or 200 meters or more; how does that change the number of masthead lights and towing lights? • A tug that is RAM because of its towing operation must combine towing lights with RAM lights; which option correctly shows the red‑white‑red pattern for RAM and the proper stern/towing arrangement? • Look at which answers mix up RAM lights with Not Under Command (NUC) lights or use a stern light where a towing light should be—can you eliminate any choices based on that?

✅ Before You Answer

• Verify in Rule 24(a)–(c) whether a tug with a long tow shows two or three white masthead lights in a vertical line • Verify in Rule 24(c) whether a vessel towing astern uses a stern light, towing light, or two towing lights in a vertical line, depending on tow length • Verify in Rule 27(b) that a vessel restricted in her ability to maneuver shows three all‑round lights in a vertical line: red‑white‑red, in addition to her normal lights for the type of vessel (here, a tug)