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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

Code Flags
Xray
"Stop carrying out your intentions and watch for my signals."
"Stop carrying out your intentions and watch for my signals."
Sounds and Symbols
1 Short Blast
International - I am altering course to Starboard
one short
Navigation Marks
Special Mark
Buoys indicate pipelines or areas used for special purposes.
Buoys indicate pipelines or areas used for special purpos
Code Flags
Yankee
"I am dragging my anchor."
"I am dragging my anchor."
Sounds and Symbols
3 Short Blasts
International - I am operating astern propulsion
3 short blasts
Navigation Lights
Sailing Vessel
Under way with additional masthead lights
Under sail Port hand aspect
Sounds and Symbols
1 Prolonged 2 Short Blasts
The signal used by sailing vessels bad visibility.
fog
Sounds and Symbols
2 Prolonged 1 Short Blast
I intend to overtake you on your starboard side
2long1short
Navigation Lights
Trawler Over 50M
Trawler Over 50M Making Way
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
Zulu
"I require a tug."
"I require a tug."
Code Flags
India
"I am altering my course to port."
"I am altering my course to port."
Navigation Marks
Port Hand Lateral Mark: ‘IALA – B’
Lateral buoys define the borders of channels and indicate the direction.
Port Hand Lateral Mark: IALA B
Code Flags
Tango
"Keep clear of me; I am engaged in pair trawling."
"Keep clear of me; I am engaged in pair trawling."
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."[
Code Flags
Papa
In harbour: "All persons should report on board as the vessel is about to proceed to sea".
Papa
Code Flags
Lima
In harbour: "The ship is quarantined." At sea: "You should stop your vessel instantly."
lima
Navigation Marks
Port Hand Lateral Mark: ‘IALA – B’
Lateral buoys define the borders of channels and indicate the direction.
Port Hand Lateral Mark: IALA B
Saildreams

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

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