What is Trois?
In this glossary, Trois refers to: The ICAO/FAA radiotelephony spelling for the numeral '3'. Used to clearly transmit numbers, altitudes, headings, runways, and flight levels in ATC phraseology.
How is Trois used in aviation?
In aviation communication, this term appears in contexts such as: "Virez à droite cap un huit trois, maintenez trois mille pieds jusqu'à l'alignement sur le localizer."
Why does Trois matter in aviation?
Trois matters because it supports clear communication in Phonetic Alphabet contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.
Who uses Trois?
Trois is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.
What category does Trois belong to?
In this glossary, Trois is grouped under Phonetic Alphabet. Related pages in this category explain adjacent procedures, commands and operational concepts.
Where does this definition come from?
This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.