International Code of Signals: Meanings and Flags
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- ALFA: First flag of the International Code of Signals. On a bugle, blue and white, raised in isolation, it means: "I have a submerged diver; keep well away at low speed."
- BRAVO: Second flag of the International Code of Signals. It is a red horn and, raised in isolation, means: "I am loading, unloading, or carrying explosives." or "I carry flammable liquids."
- CHARLIE: Third letter of the International Code of Signals, represented by a square flag with five horizontal stripes (blue, white, red, white, and blue). Hoisted in isolation, it means: "Yes" or "Affirmative."
- DELTA: Fourth flag of the International Code of Signals. It's a square with three horizontal stripes (yellow, blue, and yellow). Hoisted singly, it means: "Keep clear of me; I am maneuvering with difficulty."
- ECHO: Fifth flag of the International Code of Signals, with two horizontal stripes (blue on top and red on the bottom). Hoisted in isolation, it means: "I am altering my course to starboard."
- FOXTROT: Sixth flag of the International Code of Signals, white with a red diamond. Hoisted in isolation, it means: "I am disabled; communicate with me."
- GOLF: Seventh flag of the International Code of Signals. It is square with three vertical yellow stripes and three blue stripes. Hoisted in isolation, it means: "I require a pilot." In a fishing area, for boats working very close to each other, it means: "I am hauling nets."
- HOTEL: Eighth flag of the International Code of Signals. It is square with two vertical stripes, white and red, with the white next to the hoist. Hoisted in isolation, it means: "I have a pilot on board."
- INDIA: Ninth flag of the International Code of Signals. It is yellow with a black disk and, raised in isolation, means: "I am altering my course to port."
- JULIETT: Tenth flag of the International Code of Signals, with three horizontal stripes (blue, white, and blue). Hoisted in isolation, it means: "I am on fire and have dangerous cargo on board; keep well clear of me."
- KILO: Eleventh flag of the International Code of Signals, with two vertical stripes, blue and yellow, with the yellow next to the hoist. Hoisted in isolation, it means: "I wish to communicate with you."
- LIMA: Twelfth flag of the International Code of Signals, formed by four rectangles, two yellow and two black. Hoisted in isolation, it means: "You should stop your vessel instantly."
- MIKE: Thirteenth flag of the International Code of Signals, blue with a white saltire (diagonal cross). Hoisted in isolation, it means: "My vessel is stopped and making no way through the water."
- NOVEMBER: Fourteenth flag of the International Code of Signals. It is checkered blue and white. Hoisted in isolation, it means: "No" or "Negative."
- OSCAR: Fifteenth flag of the International Code of Signals, formed by two triangles, red and yellow. Hoisted in isolation, it means: "Man overboard!"
- PAPA: Sixteenth flag of the International Code of Signals, blue with a white rectangle in the center. Hoisted in isolation in port, it means: "All personnel should return to the vessel as it is about to proceed to sea." At sea, it means: "My nets have come fast upon an obstruction."
- QUEBEC: Seventeenth flag of the International Code of Signals, yellow. Hoisted in isolation, it means: "My vessel is 'healthy,' and I request free pratique."
- ROMEO: Eighteenth flag of the International Code of Signals, red with a yellow cross. Raised in isolation, it has no particular meaning.
- SIERRA: Nineteenth flag of the International Code of Signals, white with a blue rectangle in the center. Hoisted in isolation, it means: "My engines are going astern."
- TANGO: Twentieth flag of the International Code of Signals, with three vertical stripes: red, white, and blue (red next to the hoist). Hoisted in isolation, it means: "Keep clear of me; I am engaged in pair trawling."
- UNIFORM: Twenty-first flag of the International Code of Signals, consisting of two red and two white rectangles. When hoisted singly, it means: "You are running into danger."
- VICTOR: Twenty-second flag of the International Code of Signals, white with a red saltire (diagonal cross). Hoisted in isolation, it means: "I require assistance."
- WHISKEY: Twenty-third flag of the International Code of Signals, consisting of three rectangles: the inner one red, the middle one white, and the outer one blue. Hoisted in isolation, it means: "I require medical assistance."
- X-RAY: Twenty-fourth flag of the International Code of Signals, white with a blue cross. Hoisted in isolation, it means: "Stop carrying out your intentions and watch for my signals."
- YANKEE: Twenty-fifth flag of the International Code of Signals, with yellow and red diagonal stripes. Hoisted in isolation, it means: "I am dragging my anchor."
- ZULU: Twenty-sixth flag of the International Code of Signals, consisting of four triangles with vertices at the center of the flag and colored black, red, blue, and yellow. Hoisted in isolation, it means: "I require a tug."