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upofadowntoday at 1:10 PM0 repliesview on HN

Commercial aviation involves mostly textual interaction[1] to determine what the aircraft does, for most of the time. Aviation is rife with plain text, usually upper case for better legibility[2].

[1] https://en.wikipedia.org/wiki/Flight_management_system

[2] https://en.wikipedia.org/wiki/NOTAM