A+ A A-

A vessel restricted in her ability to manoeuvre when at anchor - shapes

  • Description of scenario: Type of vessel: Vessel restricted in her ability to manoeuvre when at anchor
    Time of the day: Daytime
  • Rule(s) to be applied: Rule 27 (Vessels not under command or restricted in their ability to manoeuvre)
    Rule 30 (Anchored vessels and vessels aground)
  • Applying the Rule(s) and comments: In accordance with Rule 27 (b) (Vessels not under command or restricted in their ability to manoeuvre), a vessel restricted in her ability to manoeuvre , except a vessel engaged in mine clearance operations, shall exhibit:
    (ii) three shapes in a vertical line where they can best be seen. The highest and lowest of these shapes shall be balls and the middle one a diamond;
    (iv) shape prescribed in Rule 30 (Anchored vessels and vessels aground).
    In accordance with Rule 30 (a)(i) (Anchored vessels and vessels aground), a vessel at anchor shall exhibit where it can best be seen, in the fore part, one ball.

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.