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Sound signals of vessels engaged in towing operation in restricted visibility

  • Description of scenario: Type of vessel: Towing vessel and vessel being towed
    Visibility: In or near an area of restricted visibility , weather by day or night
  • Rule(s) to be applied: Rule 35 (Sound signals in restricted visibility )
  • Applying the Rule(s) and comments: In accordance with Rule 35 (c) (Sound signals in restricted visibility ), a vessel engaged in towing another vessel shall, instead of the signals prescribed in Rule 35 (a) or (b) (Sound signals in restricted visibility ), sound at intervals of not more that 2 minutes three blasts in succession, namely one prolonged followed by two short blasts.
    In accordance with Rule 35 (e) (Sound signals in restricted visibility ), a vessel towed or if more that one vessel is towed the last vessel of the tow, if manned, shall at intervals of not more than 2 minutes sound four blasts in succession, namely one prolonged blast followed by three short blasts. When practicable, this signal shall be made immediately after the signal made by the towing vessel.
  • Signals:

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This project has been funded with support from the European Commission.This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.