Towing & Ship-Assist · Towing Lights
A tug and a barge rigidly connected as a 'composite unit' are, under the Rules, lighted and treated as:
- AA vessel not under command
- BTwo separate vessels each showing towing lights
- CA single power-driven vessel✓ Correct
- DA vessel restricted in her ability to maneuver
Explanation
A composite unit (a pushing vessel and a vessel pushed ahead rigidly connected as one) is regarded as a single power-driven vessel and shows the lights of a power-driven vessel under Rule 23 — not towing lights.
Authority: Navigation Rules, Rule 24(b)
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