FS2004/FSX Concorde Callsigns Pack. Here you have all the Concorde callsigns. To be used with the Concorde Package (CONCORDEXGAD.ZIP). Included are: Speedbird Concorde (BA callsign), Concorde ATC type, callsign used by the British Concorde prototype, callsign used by the French Concorde prototype, plain "Concorde" callsign. By Gabriel A. Donate.