 The first model to bear the BAC name was the BAC One-Eleven (BAC 1–11), a Hunting Aircraft study, in 1961.Bristol had eschewed the subsonic airliner market and was working on the Bristol 223 supersonic transport, which was eventually merged with similar efforts at Sud Aviation to create the Anglo-French Concorde venture.The first Concorde contracts were signed with Air France and BOAC in September 1972.