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Maritime signal flags

International maritime flags and their standalone messages.

25 symbols
All persons should report on board symbolAll persons should report on boardIn harbour, all persons should report on board because the vessel is about to proceed to sea. I am altering course to port symbolI am altering course to portThe vessel is changing course to port (left). I am altering course to starboard symbolI am altering course to starboardThe vessel is changing course to starboard (right). I am carrying dangerous goods symbolI am carrying dangerous goodsI am taking in, discharging, or carrying dangerous goods. I am disabled symbolI am disabledI am disabled; communicate with me. I am dragging my anchor symbolI am dragging my anchorThe vessel's anchor is not holding. I am on fire and carrying dangerous cargo symbolI am on fire and carrying dangerous cargoKeep well clear: the vessel is on fire and has dangerous cargo aboard, or is leaking dangerous cargo. I have a diver down symbolI have a diver downKeep well clear and proceed at slow speed. I have a pilot on board symbolI have a pilot on boardA pilot is on board the vessel. I require a pilot symbolI require a pilotI require a pilot. Fishing vessels use it to mean they are hauling nets. I require a tug symbolI require a tugThe vessel requires a tug. Fishing vessels use it to mean they are shooting nets. I require assistance symbolI require assistanceThe vessel requires assistance. I require medical assistance symbolI require medical assistanceThe vessel requires medical assistance. I wish to communicate with you symbolI wish to communicate with youThe vessel wishes to establish communication. Keep clear of me symbolKeep clear of meKeep clear of me; I am manoeuvring with difficulty. Keep clear; I am pair trawling symbolKeep clear; I am pair trawlingKeep clear of me; I am engaged in pair trawling. Man overboard symbolMan overboardA person has fallen overboard. My engines are going astern symbolMy engines are going asternThe vessel's engines are operating in reverse. My vessel is healthy symbolMy vessel is healthyMy vessel is healthy and I request free pratique (permission to enter port). My vessel is stopped symbolMy vessel is stoppedMy vessel is stopped and making no way through the water. No symbolNoNegative: no. Stop carrying out your intentions symbolStop carrying out your intentionsStop carrying out your intentions and watch for my signals. Stop your vessel immediately symbolStop your vessel immediatelyAn instruction to stop the vessel immediately. Yes symbolYesAffirmative: yes. You are running into danger symbolYou are running into dangerA warning that the receiving vessel is heading into danger.