Rule(s) to be applied:Rule 34
(Manoeuvring and warning signals)
Applying the Rule(s) and comments:
In accordance with Rule 34
(a) (Manoeuvring and warning signals), a vessel operating astern propulsion (vessel A) shall indicate that manoeuvre by three short blasts on her whistle. In accordance with Rule 34
(f) (Manoeuvring and warning signals), if whistles are fitted on a vessel at a distance apart of more than 100 m, one whistle only shall be used for giving manoeuvring and warning signals.
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