Transaérienne started operating Astra dirigibles in France and Switzerland, where Airault piloted the Astra VII "Ville de Lucerne" in August 1910 in Lucerne.
Transaérienne started operating Astra dirigibles in France and Switzerland. Airault, as the company's chief pilot, directed operations of the Astra VII "Ville de Lucerne" in August 1910 in Lucerne.