koksy is correct - all mainline domestic flights now use 'Shuttle'.
Speedbird for all other mainline flights.
Gee Bee for GB Airways.
Bee Med for British Med.
British for BACX.
Logan for Loganair.
Sun-scan for Sun Air.

Where can I hang my anorak?

Addition - the Speedbird was a logo that BA used to use - it is not a reference to Concorde! I'll try and find a picture.

Edit 2: http://www.airliners.net/open.file/530945/L/ and http://www.airliners.net/open.file/013626/L/ - the Speedbird can be seen just infront of where it says 'British Airways'.