Ag1 - lights, Ag2 - parachute, Ag3 - aresting hook, Ag4 - lights in cockpit, Ag5 - remove weapon, AG6 - Remove fuel tank, Ag8 - cockpit

Originally conceived in the 1960s as a jet trainer with a light ground attack capability, the requirement for the aircraft soon changed to include supersonic performance, reconnaissance and tactical nuclear strike roles. A carrier-based variant was also planned for French Navy service, but this was cancelled in favour of the cheaper, fully French-built Dassault-Breguet Super Étendard. The aircraft were manufactured by SEPECAT (Société Européenne de Production de l'avion Ecole de Combat et d'Appui Tactique), a joint venture between Breguet and the British Aircraft Corporation, one of the first major joint Anglo-French military aircraft programmes.