Did you know that? The Navy has a flag alphabet. Each letter or number has a meaning. Flags form a language. Alone or in combination, they indicate a situation.
The best known are the A which means, "I have divers in diving" but the Q is also known because you have to hoist it when you arrive in a new country, to ask for customs operations
Today, in the wanderings of easy communications, the pavilion is totally obsolete. But it retains the charm of traditional navigation. And a little nautical culture never hurts.
I've got a scuba diver, stand clear and move slowly.
I load, or unload, or transport dangerous goods.
Yes (affirmative answer), or the above group should be understood as an affirmation
Don't get in my way, I'm a difficult maneuver..
I'm coming to starboard
I'm distraught, contact me.
I need a pilot; By a fishing boat: "I'm hauling my nets"
I have a pilot on board
I'm coming around to port
Keep away I have a fire on board and I am carrying dangerous goods, or I have a leak of dangerous substances.
I would like to contact you or I invite you to pass on.
Stop your ship immediately.
My ship is stopped and has no more wanderings..
No (negative response), or the above signal must be understood in negative form.
In port: All persons must report on board, the ship is about to set sail.
My ship is unharmed, I demand free practice.
I'm beating back.
Don't mind me, I'm twin trawling.
You're running into danger
I request assistance
Request for medical assistance
Stop your maneuvers and watch for my signals..
My anchor is hunting
I need a tugboat. "By a fishing boat": I'm putting my nets in the water.