A+ A A-

A vessel nearing a bend or an area where other vessels may be obscured by intervening obstruction

  • Description of scenario: Vessel A: power-driven vessel
    Vessel B: power-driven vessel
    Area: Narrow channel
    Vessel A and vessel B are nearing a bend or an area of a narrow channel or fairway where other vessels may be obscured by intervening obstruction
  • Rule(s) to be applied: Rule 9 (Narrow channels )
    Rule 34 (Manoeuvring and warning signals)
  • Applying the Rule(s) and comments: In accordance with Rule 9 (f) (Narrow channels ), a vessel (Vessel A and Vessel B) nearing a bend or an area of a narrow channel or fairway where other vessels may be obscured by an intervening obstruction shall navigate with particular alertness and caution and shall sound the appropriate signal prescribed in Rule 34 (e) (Manoeuvring and warning signals).
    In accordance with Rule 34 (e) (Manoeuvring and warning signals), a vessel (Vessel A and Vessel B) nearing a bend or an area of a narrow channel or fairway where other vessels may be obscured by an intervening obstruction shall sound one prolonged blast.

Register to get free access to bird's-eye, bridge, radar and/or ECDIS view videos!

Advanced COLREGs Course - Visit our advanced course for complex multi-rule and multi-ship scenarios!








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.