Société française d'équipements pour la navigation aérienne or SFENA was a former French avionics company.
It made the flight control system (AFCS) for Concorde, as well as its artificial horizon and horizontal situation indicator (HSI), and automatic throttle system (ATS).
[1] It was merged with Crouzet in 1981,[2] when Crouzet took its ownership from 35% to 85%.
It was headquartered at Neuilly-sur-Seine in Hauts-de-Seine (Île-de-France region) until 1970 when it moved to Vélizy-Villacoublay in a technical research centre near Vélizy – Villacoublay Air Base.
It made guidance systems for aircraft[3] including: