Joint Army/Navy Phonetic Alphabet
- The Joint Army/Navy Phonetic Alphabet is not a phonetic alphabet in the sense in which that term is used in phonetics, i.e., it is not a system for transcribing speech sounds. See the phonetic alphabet disambiguation page, and also phonetic notation.
The Joint Army/Navy Phonetic Alphabet was a radio alphabet developed in 1941 during World War II and was used by all branches of the United States Armed Forces until the promulgation of the ICAO spelling alphabet (Alfa, Bravo) in 1956, which replaced it. Before the Joint Army/Navy (JAN) phonetic alphabet, each branch of the armed forces used its own radio alphabet, leading to difficulties in interbranch communication.
Vestiges of the system remain in use in the U.S. Navy, in the form of Material Conditions of Readiness, used in damage control. Dog, William, X-Ray, Yoke, and Zebra all reference designations of fittings, hatches, or doors. The response "Roger" for "· – ·" or "R", to mean "received", also derives from this alphabet.
The names Able to Fox were also widely used in the early days of hexadecimal digital encoding of text in speaking of the hexadecimal digits equivalent to decimal 10 to 15, although the written form was simply the capital letters A to F. See hexadecimal.
|Letter||1913||1927||1938||World War II||1957–present||Signal Flag|
- Joint Army/Navy (JAN) phonetic alphabet from alt.usage.english (at the end)
- Phonetic Alphabet and Signal Flags by Naval Historical Center (five phonetic alphabets: 1913, 1927, 1938, WWII, 1957–present)
- NavSource Naval History
- Phonetic Alphabet by United States Army Signal Center (four phonetic alphabets: 1916, 1939, 1944, 1961)