old international radiotelephony spelling alphabet

Some users felt that they were so severe that they returned to the old 'Able Baker' alphabet. Immediately, problems were found with the newly adopted alphabet. ICAO, from 1952: Alpha in US often Alfa, Bravo, Coca or Coco, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliet, in US often Juliett, Kilo, Lima, Metro, Nectar, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Union, Victor, Whiskey, Extra or X-extra, Yankee, Zulu. US/UK Combined Phonetic Alphabet, October 1942 Adam from November 42 Able, Baker, Charlie, Dog, Easy, Fox, George, How, Item, Jig, King, Love, Mike, Negat (USAAF) from Nov 42 Nan, Oboe, Prep (USAAF) from November 42 Peter, Queen, Roger, Sugar, Tare, Uncle, Victor, William, X-ray, Yoke, Zed (USAAF) from November 42 Zebra. UK usage 1912 to October 1942: Ack, Beer, Charlie, Dog, Emma, later Edward, Freddie, George, Harry, Ink, Johnny, King, London, Monkey, Nuts, Orange, Pip, Queen, or Queenie, Robert, Sugar, Toc, Uncle, Vic, William, X-ray, Yorker, later York, Zebra. The following alphabets are those used in English-language aviation. After those studies, consultations with communications experts and comments from all of ICAO’s member governments, a new ICAO alphabet was adopted and incorporated in the Aeronautical Telecommunications Annex 10 for implementation on 1 November 1951 in civil aviation, with one year transition to this new alphabet. Professor Jean-Paul Vinay of the University of Montreal (Canada) worked on this problem in collaboration with the ICAO language section during 19. An alternative alphabet 'Ana/Brazil' was endorsed and introduced for the South American and Caribbean regions.Īs there were two coexisting alphabets IATA at its First Technical Conference in Nice in 1947 was to subject to consideration by ICAO a first draft of a single universal alphabet. The problem was that many speech sounds of this alphabet were associated only with the English language. It was adopted by the Second Session of the ICAO Communications Division in 1946. In peacetime with many aircraft and ground personnel drawn from the allied armed forces, the 'Able/Baker' alphabet was widely used in the field of civil aviation.

The resulting alphabet was adopted by the International Commission for Air Navigation (ICAN), the predecessor of ICAO, and was used in civil aviation until World War II.ĭuring the World War II, the military requirements led to the development of a common spelling alphabet for the use of the combined allied services the Able Baker alphabet was named after the words for the letters A and B. The experience gained with that alphabet resulted in several changes being made by the 1932 Radio Conference of ITU. The first internationally recognized phonetic alphabet was adopted by the International Telecommunications Union (ITU) Radio Conference in 1927 and was in use by the maritime mobile service. The NATO phonetic alphabet, more accurately known as the International Radiotelephony Spelling Alphabet and also called the ICAO phonetic or ICAO spelling alphabet, as well as the ITU phonetic alphabet, is the most widely used spelling alphabet. Even with modern clear electronic communications a phonetic alphabet is often helpful. The meaning was greatly clarified by inventing a word to confirm each letter, as far as possible with no two words sounding similar. The importance of implementation and use of the ICAO alphabet for flight safety in the field of aviation is considered.Įarly radios suffered severely from interference, which often made messages almost impossible to understand. INTERNATIONAL SIGNIFICANCE OF ICAO ALPHABET FOR FLIGHT SAFETY Zelinska ( National AviationUniversity, Ukraine )

Old international radiotelephony spelling alphabet