The Phonetic Aviation Alphabet

Have you ever listened to a conversation between a pilot and the air traffic controller (ATC) during a flight? If yes, then for sure you noticed that they mention strange words in their conversations Like ‘Romeo’, ‘Juliet’ and ‘Hotel’ for example! But why they are saying this in their flight?! Of course you know our normal English letters (A, B, C,…etc.), and because certain letters sound very similar, the International Civil Aviation Organization (ICAO) created what is called “International Radio telephony Spelling Alphabet.”

But why did the ICAO create this language?

In order to be sure that letters are pronounced and understood correctly, no matter what language is spoken, the aviation alphabet helps to avoid mistakes. This alphabet takes letters and makes them easier to understand, even with interference and static. Let’s take an example, look at the photo below:

Take a look at these letters ahead of the tail; letters are F-GSQR; this would be translated over the radio as “Foxtrot Golf Sierra Quebec Romeo”.

Aviation Alphabets

Letters are listed below with their corresponding words, so you can have a better understanding of the aviation alphabet:

ICAO Letters:
  • A: Alpha
  • B: Bravo
  • C: Charlie
  • D: Delta
  • E: Echo
  • F: Foxtrot
  • G: Golf
  • H: Hotel
  • I: India
  • J: Juliet
  • K: Kilo
  • L: Lima
  • M: Mike
  • N: November
  • O: Oscar
  • P: Papa
  • Q: Quebec
  • R: Romeo
  • S: Sierra
  • T: Tango
  • U: Uniform
  • V: Victor
  • W: Whiskey
  • X: X-ray
  • Y: Yankee
  • Z: Zulu
ICAO Numbers:
  • 0: Zero
  • 1: One
  • 2: Two
  • 3: Three
  • 4: Four
  • 5: Five
  • 6: Six
  • 7: Seven
  • 8: Eight
  • 9: Niner
  • 100: Hundred

About the Aviation Alphabet

The International Civil Aviation Organization (ICAO) is an agency of the United Nations that decided the phonetic aviation alphabet needed to be standardized. Although all words are English, the words are sounds common to all languages and can be pronounced no matter the language spoken. The final alphabet was completed in March of 1956, with simple changes made to accommodate different pilots in different countries. Over the years, the words listed with the corresponding letters have remained the same, but some shorthand slang has developed.