Fog

See the page on Lights, Shapes and Sounds. Work on these until they are memorized.


(I) FOG

  1. Never set out in fog.
  2. When underway and fog settles in, immediately reduce speed.
  3. Chart progress on the chart frequently as appropriate - always know where you are.
  4. Turn on the radar, and start maintaining radar watch on range of 3 miles of less
  5. Ensure AIS is turned on and keep checking on Chart Plotter
  6. Ensure Forward Looking Sonar is on and keep checking
  7. If necessary to maintain or control progress, turn on the engine.
  8. Put on Life Jackets, with tethers if rough weather.
  9. Listen on the VHF to Channel 16 and 13 in Scan mode.
  10. Post a lookout on the bow to Look AND Listen for vessel and buoy sounds, breakers, and shore noises.
  11. Person in cockpit also Looks AND Listens for overtaking vessels.
  12. Idle the engine periodically to make it easier to listen.
  13. Make the appropriate sound signals as indicated below.

(II) SOUND SIGNALS IN FOG ( Put these symbols on the Air Horn or can of air. Carry a spare can.)

  1. Long, short, short. Towing, fishing, restricted ability to manoeuvre, sailing, and NUC (sound every 2 minutes)
  2. Long. Under power, making way (sound every 2 minutes)
  3. Long, long. Under power, not making way (sound every 2 minutes)
  4. Long, short, short, short. Manned vessel being towed (sound every 2 minutes)
  5. Bell for 5 seconds At anchor (sound every minute)
  6. Short, short, long. You are running into danger (also 5 shorts)

(III) SOUND SIGNALS (GENERAL, NO FOG)

  1. Short. I am altering course to starboard
  2. Short, short. I am altering course to port
  3. Short, short, short. I am going in reverse
  4. Long, long, short. I am going to overtake you on your starboard
  5. Long, long, short, short. I am going to overtake you on your port side
  6. Long, short, long, short. I agree to your overtaking on the side indicated
  7. 5  shorts. Danger

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This page was last modified on: January 31, 2013

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