What actions to be taken When Approaching in fog in the open sea?

ROR (Rules of the Road) require that a lookout must always be maintained, by all available means. This includes by sight, by hearing and by radar. Among all the navigational aids on the bridge, radar is the only one that is also useful for the prevention of collision.

When approaching fog, take the following actions-

  • Inform Master.

  • Inform E/R We are entering the fog. Get engines ready for maneuvering and let us know as soon as you are ready

  • Observe visually, and make a note of the movement of all traffic in sight.

  • Switch on ARPA and commence plotting.

  • Switch on navigation lights. This is a requirement under ROR. It increases the range of visual detection in restricted visibility. If and when visual sighting is effected, each ship would be able to determine our relative heading of the other, at a glance, and take appropriate avoiding action.

  • Change over to hand steering

  • Switch on the other steering motor also.

  • Post double lookouts.

  • Try out a pneumatic whistle, electric klaxon, and the manual foghorn by giving a very short blast on each. Try out the automatic fog signal unit.

  • Stop all noise on the deck so that fog signals of other ships would not get drowned by noises on board the own ship.

  • Keep open the outer doors of the wheelhouse so that fog signals of other ships may be heard, even if they are very faint.

  • Commence sounding fog signals before entering the fog. This is in the hope that a ship just within the fog, and not visible, would hear own'

  • ship signals.

  • Reduce to 'Safe speed before entering the fog.

  • Restrict hold ventilation. The entry of air with water par