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Universal spelling alphabet3/5/2023 ![]() ![]() In 1947 the ITU adopted the compound number words (Nadazero Unaone, etc.), later adopted by the IMO in 1965. The most widely used spelling alphabet is the NATO phonetic alphabet, which is also used in aviation like in communication between a pilot and the control tower. It was finally adopted by the IMO in 1965. And the final version was implemented by ICAO on 1 March 1956, and adopted as the established phonetic alphabet by 1959 by the ITU, when it was adopted by all radio operators, whether military, civilian, or amateur. Members of the military, police, airline pilots and others working in the aviation and travel industry commonly use it. Confusion among words like Delta, Nectar, Victor, and Extra, or the unintelligibility of other words under poor receiving conditions were the main problems.Īfter much study, only the five words representing the letters C, M, N, U, and X were replaced. Also referred to as the ICAO Phonetic Alphabet and the NATO Alphabet (with some modifications), this universal spelling alphabet is a set of words used to clarify messages, no matter the spoken language. To identify the deficiencies of the new alphabet, testing was conducted among speakers from 31 nations, principally by the governments of the UK and the US. Some users felt that they were so severe that they reverted to the old “Able Baker” alphabet. Immediately, problems were found with the IATA list. After further study and modification by each approving body, the revised alphabet was implemented on 1 November 1951 in civil aviation (but it may not have been adopted by any military at this stage): But many sounds were unique to English, so an alternative “Ana Brazil” alphabet was used in Latin America.īut the International Air Transport Association (IATA), recognising the need for a single universal alphabet, presented a draft to ICAO in 1947 that had sounds common to English, French, and Spanish. The UK adapted its RAF alphabet in 1943 to be almost identical to the American Joint-Army-Navy (JAN) one.Īfter World War II, with many aircraft and ground personnel drawn from the allied armed forces, “Able Baker” continued to be used in civil aviation. alphabet became known as Able Baker after its words for A and B. adopted the Joint Army/Navy Phonetic Alphabet from 1941 to standardise all branches of its armed forces. British forces adopted the RAF phonetic alphabet, which is similar to the phonetic alphabet used by the Royal Navy in World War I. Just type the word and it will be spelled automatically according to the international ICAO/ITU/NATO spelling alphabet (also called phonetic alphabet or radiotelephony spelling alphabet) - from 'Alfa for A', 'Bravo for B', 'Charlie for C' and so on to 'Zulu for Z'. This original alphabet was used in civil aviation until World War II and continued to be used by the International Maritime Organisation (IMO) until 1965:īritish and American armed forces each developed and used their own, different phonetic alphabets (before both adopted the universal ICAO alphabet in 1956). The first internationally-recognised phonetic alphabet was adopted by the ITU (International Telecommunication Union) in 1927 and following this, the concept was adopted by the International Commission for Air Navigation (which later became ICAO – The International Civil Aviation Organization). ![]()
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