I was listening to ORD ATC tonight and I heard “Speed Bird 24 Romeo” departing.
It’s not a usual flight number as best I can tell. I’m especially curious about the “R” suffix. I assume this is a repositioning flight or something like that? I have heard a similar alpha suffix on some other flights. Is this something used for maintenance or other repositioning flights? I know some airlines use 9### and for things like that. But the alpha suffix is new to me.
I’m sorry if this has been answered before. I guess I don’t know the proper term to search for to find the answer.
I did find this flight leaving about the same time:
flightaware.com/live/flight/BAW2 … /KORD/EGLL
It’s a regular flight. Any insight to the 24 Romeo callsign though?