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The list goes on and on! This is normally vital information and an error can lead to catastrophic consequences for example a pilot may climb or descends to an incorrect level.
Below is a list of how pilots and air traffic controllers pronounce the numbers zero to ten:. Most numbers are pronounced more or less as you would expect, but there are four, maybe five, big exceptions. The numbers 4 and 7 are the least changed in terms or pronunciation , with just a slight emphasis on the end of the words. The number 9 is the most changed, and the similarly-pronounced 5 is changed as well. It is amazing how often, in my time as an air traffic controller, pilots and ATCOs will confuse a three with a two and vice-versa, even when pronouncing the words correctly.
Two and three is by far the most confused pair of numbers in my 14 years of experience and you would not expect that to be the case. It is especially bad with radio frequencies that contain 2s and 3s, and flight levels like , , and On a daily basis, the correct frequency and level need to be clarified. The above serves to highlight how important clear and easily understood communication is, even between native speakers.
Numbers that are fully understood only makes communicating between pilots and ATC, and thus flying, safer. But it's not a version of English that would make much sense to you, the passenger, since it's laden with numbers, acronyms and arcane terminology, such as "Center Control, Papa November tree-niner-fife at tree-tree-zero. The reason is that according to a set of standards and recommended practices adopted in by the International Civil Aviation Organization , pilots on international flights and air traffic controllers on their routes are required to speak a specialized version of the language known as Aviation English when they communicate over the radio.
Elizabeth Mathews , a linguist and assistant professor in the Department of Applied Aviation Science at Embry-Riddle Aeronautical University , explained in a phone interview that Aviation English is required throughout the world, because it wouldn't be practical for a pilot to have to know all the different languages spoken in countries where he or she has to fly.
How pilots communicate has evolved since they first began using radios in the early s, according to Dominique Estival , a Western Sydney University linguist and co-author of the book "Aviation English: A lingua franca for pilots and air traffic controllers.
Between the World Wars, pilots began using the International Telecommunications Union's phonetic alphabet , in which a code word was assigned to each letter — such as "alpha" for A, and "bravo" for B — to avoid having someone mishear a letter. English has been the dominant language in aviation since the end of World War II, in part because the victorious United States became a power in both the airline industry and aircraft manufacturing.
But ICAO, an agency with member countries, didn't initially require the use of English by pilots and controllers. Instead, for decades, it took the position that pending the development and adoption of a more suitable form of speech, English was the recommended — but not mandated — language to use.
But there wasn't any requirement for aviation personnel to develop proficiency in English. You are expected to have a clean appearance according to the standards set by your employers. Begin typing your search term above and press enter to search.
Press ESC to cancel. Skip to content Home Ethnicity Why is Niner nine? Ben Davis February 2, Why is Niner nine?
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