BOTH INTERNATIONAL & INLAND A 49 meter seagoing tug has a tow greater than 200 meters as shown in illustration D024RR below and is severely restricted in her ability to deviate from her course. Which lights would be displayed from the towing vessel?
• Rule 24 – Towing and Pushing Vessels (what lights are required for a towing vessel over 50 m vs under 50 m, and when the tow exceeds 200 m) • Rule 27 – Restricted in Ability to Maneuver (RAM) (which all‑round red/white lights indicate RAM and how many are required) • Difference between stern light and towing light and when each is shown on the tug
• First, list all the lights required for a power‑driven vessel engaged in towing with a tow over 200 meters; then add any extra lights required because the tug is restricted in her ability to maneuver • Decide whether a 49 m tug must show two or three masthead lights when towing over 200 meters, and where they are placed • Work out whether a tug underway and towing should still display a normal stern light in addition to, or instead of, a towing light
• Verify in Rule 24(a) and (b) how many masthead lights are required for a towing vessel when the tow exceeds 200 meters and whether vessel length changes this • Verify in Rule 27(b) the exact sequence and colors of the RAM lights (is it red‑white‑red or two red lights?) • Confirm whether a towing vessel shows both a stern light and a towing light, or only a towing light, when towing astern
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