Astra Clément-Bayard was a French manufacturer of dirigibles. In 1908 the French industrialist Adolphe Clément-Bayard, who had already made a fortune manufacturing cars, motorcycles and bicycles, diversified into the aviation industry. His first project was a lens-shaped airship designed by Louis Capazza, which was never built. He then collaborated with the Société Astra (Société Astra des Constructions Aéronautiques) on the manufacture of a more conventional craft. Astra were responsible for the manufacture of the envelope, and Clement-Bayard took responsibility for the nacelle and engine. After this collaborative effort the company started manufacturing the envelopes as well, at a new factory in La Motte-Breuil built in anticipation of orders from the French Army, who had decided to comm