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international code flags | navigation marks | lights and signals | sounds | IALA B buoyage system

Time for some O'l School Skills. Hover or Click Card for Quick or Detailed Information. Filter Options below

Navigation Marks
South Cardinal Mark
Placed in the SOUTH Quadrant of a Hazard
Placed in the SOUTH Quadrant of a Hazard
Navigation Lights
Vessel Dredging
Dredger Restricted in Her Ability to Maneuver
Vessel Dredging
Navigation Lights
Vessel Not Under Command
Making way
Vessel Not Under Command
Navigation Marks
Preferred Channel to Port IALA-B
This mark indicates that the preferred channel is to PORT
prefered to port
Code Flags
Romeo
No ICS meaning as single flag.
No ICS meaning as single flag.
Navigation Lights
Restricted Vessel More Than 50M
Restricted in Her Ability to Maneuver
Restricted Vessel More Than 50M
Sounds and Symbols
1 Prolonged Blast
International - Sound signal for nearing an obscured bend
one prolonged blast
Sounds and Symbols
3 Short Blasts
International - I am operating astern propulsion
3 short blasts
Navigation Marks
Starboard Hand Lateral Mark: ‘IALA – B’
Lateral buoys define the borders of channels and indicate the direction.
Starboard Hand Lateral Mark: 'IALA - B'
Navigation Marks
North Cardinal Mark
Placed in the NORTH Quadrant of a Hazard
Placed in the NORTH Quadrant of a Hazard
Code Flags
Juliet
"I am on fire and have dangerous cargo on board: keep well clear of me."
"I am on fire and have dangerous cargo on board: keep well clear of me."
Code Flags
Tango
"Keep clear of me; I am engaged in pair trawling."
"Keep clear of me; I am engaged in pair trawling."
Navigation Marks
Preferred Channel to Port IALA-B
This mark indicates that the preferred channel is to PORT
west cardinal
Code Flags
Lima
In harbour: "The ship is quarantined." At sea: "You should stop your vessel instantly."
lima
Navigation Marks
Starboard Hand Lateral Mark: ‘IALA – B’
Lateral buoys define the borders of channels and indicate the direction.
Lateral buoys define the borders of channels and indicate the direction.
Navigation Marks
Preferred Channel to Starboard IALA – B
This mark indicates that the preferred channel is to STBD
This mark indicates that the preferred channel is to STBD
Code Flags
Yankee
"I am dragging my anchor."
"I am dragging my anchor."
Code Flags
Mike
"My vessel is stopped and making no way through the water."[
"My vessel is stopped and making no way through the water."[
Saildreams

International maritime signal flags are various flags used to communicate with ships.

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