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International Code Of Signals

The International Code of Signals is a standardized system of signals used for communication between vessels at sea. It includes a set of flags, pennants, and signals that represent letters, numbers, and common phrases. This system allows ships from different countries to communicate with each other, overcoming language barriers and ensuring clear and standardized communication in various maritime situations.


"I have a diver down". A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. ... Internationally, the...

Bravo Flag: Nautical signal representing the letter 'B' and indicating transportation of dangerous cargo, as per the International Code of Signals.

YES /  "Affirmative"   The code flag C "Charlie" means   YES (affirmative)

The code flag D "Delta" means ' Keep clear of me; I am manoeuvring with difficulty . '

The code flag E "Echo" means ' I am altering my course to starboard . '

The code flag F " FOXTROT " means ' I am disabled; communicate with me . '

The code flag G "Golf" means ' I require a pilot . ' 

The code flag H "Hotel" means ' I have a pilot on board  ' 

The code flag I "India" means "I am altering my course to port."

The code flag J "Juliet" means I am on fire and have dangerous cargo on board; keep well clear of me .

The code flag K "Kilo" means ' I wish to communicate with you . '

The code flag L "Lima" means ' You should stop your vessel instantly . '

The code flag M "Mike" means ' My vessel is stopped and making no way through the water . ' 

The code flag N "November" means 'No (negative). '

The code flag O "Oscar" means ' Man overboard . '


" My vessel is 'healthy' and I request free practique". The code flag Q "Quebec" means Ship meets health regs; request clearance into port.

The code flag R "Romeo". Preparing to replenish (At sea) -  Navy meaning

The code flag S "Sierra" means  "I am operating astern propulsion."

The code flag T "Tango" means ' Keep clear of me; I am engaged in pair trawling . '

The code flag U "Uniform" means ' You are running into danger . '

The code flag V "Victor" means ' I require assistance . '

"I require medical assistance." If you see the W (Whiskey) flag,  the boat has a medical emergency and needs help . The combination of the...