Rules of the Road · Sound Signals — RV Manned Tow
In restricted visibility, a vessel being towed (if manned) sounds, at intervals not exceeding 2 minutes:
- AOne prolonged followed by three short blasts✓ Correct
- BNo signal
- COne prolonged followed by two short blasts
- DThree short blasts
Explanation
A manned towed vessel sounds one prolonged followed by three short blasts, immediately after the towing vessel's signal (one prolonged + two short) where practicable.
Authority: COLREGS/Navigation Rules, Rule 35(e)
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