The tandem circular wing design of Claude Givaudan [France, 1909]
The French engineer Claude Givaudan (1872-1945) designed his first aeroplane with circular wings in tandem. A unique design which later became famous in aviation history. His design was granted a patent. Givaudan designed his tandem circular wing around 1909. To get the machine to fly higher or lower the front wing could be pivoted up and down. The wing at the back could move left and right for directioal orientation.
The Givaudian design was built by the automobile factory Usines Vermorel, where Givaudan was employed. Power was delivered by a Vermoral engine rated at 50 hp.
Although this design of Givaudan was not succesfull he had a long career in cars and aviation. He finally became at the end of his life the president of the Aéro Club de Rhône.