Aeroese: The universal language of airline pilots and air-traffic controllers. Pronounced arrow-ease. Also (and more commonly) known as Aviation English.
In an essay published last month in the online magazine Aeon, Mark Vanhoenacker – a licensed commercial pilot and the author of Skyfaring: A Journey with a Pilot – writes admiringly of the “clipped, technical majesty” of “the language of the sky”:
I like how different the language of the sky is from everyday English – indeed, we might give it its own name, Aeroese (though it’s also sometimes, and less aspirationally, called Aviation English). Above all, I love how Aeroese can somehow manage, in its technical, obscuring precision, to capture the high romance of flight – an aspect of my job, no matter how much I love it, that in the cockpit we rarely have reason to consider directly.
(Aeroese may be Vanhoenacker’s coinage: all the citations I found led back to his Aeon essay.)