International Signalflags
- A - I have a diver down; keep well clear at low speed
- B - I am taking in, or discharging or carrying dangerous goods
- C - Yes (affirmative)
- D - Keep clear of me I am manoeuvring with difficulty
- E - I am altering my course to starboard
- F - I am disabbled
- G - I require a pilot
- H - I have a Pilot on board
- I- I am altering my course to Port
- J - I am on fire and have dangerous cargo on board: keep well clear of me.
- K - I wish to communicate with you
- L - You should stop your vessel instantly
- M - My vessel is stopped
- N - No (negative)
- O - Man overboard
- P - In harbour all persons should report on board as the vessel is about to proceed to sea
- Q - My vessel is healthy and I request free pratique
- R - I have received your last signal
- S - My engines are going astern
- T - Keep clear of me: I am engaged in pair trawling
- V - I require assistance
- W - I require Medical assistance
- X - Stop carrying out your intentions and watch my signals
- Y - I am dragging my anchor
- Z - I require a tug
