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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

Sounds and Symbols
Vessel At Anchor
Vessel over 7M at Anchor
At Anchor
Code Flags
November
"Negative." (No)
"Negative." (No)
Navigation Lights
Trawler
Fishing Trawler Over 50M Making Way
Trawler
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
Navigation Lights
Vessel Over 50M Towing
Restricted in her Ability to Maneuver
Vessel Over 50M Towing
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
Navigation Marks
Special Mark
Buoys indicate pipelines or areas used for special purposes.
Buoys indicate pipelines or areas used for special purpos
Navigation Marks
Preferred Channel to Port IALA-B
This mark indicates that the preferred channel is to PORT
prefered to port
Navigation Marks
Safe Water Mark
Indicates navigable water all round the mark.
safe water
Code Flags
Zulu
"I require a tug."
"I require a tug."
Code Flags
Uniform
"You are running into danger."
"You are running into danger."
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."[
Navigation Lights
Fishing Vessel
Fishing Vessel Engaged in Trawling
Fishing Vessel
Navigation Lights
Power Driven Vessel
Over 50M long
Power Driven Vessel
Navigation Lights
Sailing Vessel
Under way with additional masthead lights
Under sail Port hand aspect
Sounds and Symbols
5 Short Blasts
International/Inland - Danger/Doubt sound signal
get out of the way
Sounds and Symbols
Vessel Under Power
Under power with Sails Set
under power
Navigation Lights
Trawler Over 50M
Trawler Over 50M Making Way
Saildreams

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

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