This is opportune for I have been wondering recently why BA use the callsigns Speedbird and Shuttle.
I know that Shutttle is used for certain flights to/from Heathrow, to/from Belfast, Edinburgh, Glasgow and Manchester, but why? Why not use for other internal flights? ie Newcastle.
Why not use the Speedbird callsign?
One regularly hears the crew confusing the two, I guess because they have operated the Speedbird call sign earlier in the day.