The Japanese Navy Signal Flags are a set of maritime signal flags for conveying messages in the Japanese language. [1] The system generally uses the standard International Signal Flags, assigning both the letter, number and repeater flags to various kana, roughly following Iroha order for the standard letter flags. It also has several unique flags for some kana, as well as for conveying non-alphabetic messages.
| ICS name | Japanese Navy name | Flag | Kana | Wabun code |
|---|---|---|---|---|
| Alfa | Gozen |  | い / イ "I" | ▄ ▄▄▄ |
| Bravo | Aka (red) |  | は / ハ "Ha" | ▄▄▄ ▄ ▄ ▄ |
| Charlie | Sisu |  | に / ニ "Ni" | ▄▄▄ ▄ ▄▄▄ ▄ |
| Delta | Teshiki |  | ほ / ホ "Ho" | ▄▄▄ ▄ ▄ |
| Echo | Isuto |  | へ / ヘ "He" | ▄ |
| Foxtrot | Efu |  | ち / チ "Chi" | ▄ ▄ ▄▄▄ ▄ |
| Golf | Shairo |  | り / リ "Ri" | ▄▄▄ ▄▄▄ ▄ |
| Hotel | Takaso |  | ぬ / ヌ "Nu" | ▄ ▄ ▄ ▄ |
| India | Takuten |  | Dakuten | ▄ ▄ |
| Juliet |  | Wabun code "Wo" = J Morse ( ▄ ▄▄▄ ▄▄▄ ▄▄▄ ) | ||
| Kilo | Ke |  | わ / ワ "Wa" | ▄▄▄ ▄ ▄▄▄ |
| Lima | Eru |  | か / カ "Ka" | ▄ ▄▄▄ ▄ ▄ |
| Mike |  | よ / ヨ "Yo" | ▄▄▄ ▄▄▄ | |
| November | Kiroren |  | た / タ "Ta" | ▄▄▄ ▄ |
| Oscar | Oba |  | れ / レ "Re" | ▄▄▄ ▄▄▄ ▄▄▄ |
| Papa |  | つ / ツ "Tsu" | ▄ ▄▄▄ ▄▄▄ ▄ | |
| Quebec | Kina |  | ね / ネ "Ne" | ▄▄▄ ▄▄▄ ▄ ▄▄▄ |
| Romeo | Aru |  | な / ナ "Na" | ▄ ▄▄▄ ▄ |
| Sierra | Kigan |  | ら / ラ "Ra" | ▄ ▄ ▄ |
| Tango | Tebu |  | む / ム "Mu" | ▄▄▄ |
| Uniform | Yu |  | う / ウ "U" | ▄ ▄ ▄▄▄ |
| Victor | But |  | く / ク "Ku" | ▄ ▄ ▄ ▄▄▄ |
| Whiskey | Tafuryu |  | せ / セ "Se" | ▄ ▄▄▄ ▄▄▄ ▄▄▄ ▄ Does not match "W" in Morse code. Morse code "W" = "Ya" in Wabun code. |
| Xray | Etsukusu |  | ま / マ "Ma" | ▄▄▄ ▄ ▄ ▄▄▄ |
| Yankee | Wai |  | け / ケ "Ke" | ▄▄▄ ▄ ▄▄▄ ▄▄▄ |
| Zulu | Zetsuto |  | ふ / フ "Fu" | ▄▄▄ ▄▄▄ ▄ ▄ |
| Repeater 1 | Seido |  | ろ / ロ "Ro" | ▄ ▄▄▄ ▄ ▄▄▄ No Morse representation |
| Repeater 2 | Bango |  | ん / ン "N" | ▄ ▄▄▄ ▄ ▄▄▄ ▄ No Morse representation |
| Repeater 3 | Sankai |  | さ / サ "Sa" | ▄▄▄ ▄ ▄▄▄ ▄ ▄▄▄ No Morse representation |
| None | Houku |  | し / シ "Shi" | ▄▄▄ ▄▄▄ ▄ ▄▄▄ ▄ |
| None | Jinkei |  | ゆ / ユ "Yu" | ▄▄▄ ▄ ▄ ▄▄▄ ▄▄▄ |
| None | Undo |  | と / ト "To" | ▄ ▄ ▄▄▄ ▄ ▄ |
| None | Taiban |  | ||
| None | Rekkon |  | る / ル "Ru" | ▄▄▄ ▄ ▄▄▄ ▄▄▄ ▄ |
| Pennant 4 | Sentai |  | お / オ "O" | ▄ ▄▄▄ ▄ ▄ ▄ Does not match "4" in Morse code |
- ↑ Dickson, David, Japanese Navy Signal Flags (PDF), retrieved 20 April 2020
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