Flags · 26 questions
Name the letter of each maritime signal flag
A ship's signal flag is shown. Type its letter, or the code word that stands for the letter. You get one try at each. A right answer moves on by itself, Enter locks in a guess, and Skip or typing ? passes.
About this quiz
The 26 letter flags of the International Code of Signals. Ships fly them to spell out words, and a single flag on its own sends a standard message. A flag is shown and you type its letter or its code word. The hint shows what the flag means when it is flown alone.
Capital letters, accents and spaces are ignored when your answers are checked. You earn a bronze, silver or gold medal depending on how many you get right, and your best score is saved in this browser. There is no account to create.
Notes on the answers, and a fact contains spoilers
The code words are those of the NATO alphabet, so M is Mike and U is Uniform. The flag for P is known as the Blue Peter and was flown by a ship about to sail. A and B are the only two flags with a swallowtail.
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