Marc Birkigt (8 March 1878, Geneva – 15 March 1953, Versoix) was a Swiss engineer who moved to Barcelona, Spain when he was hired as an engineer by Emilio de la Cuadra, founder of Hispano-Suiza automobiles. He created the Dewoitine company along with Émile Dewoitine. Birkigt was nominated for the Car Engineer of the Century prize for the luxurious Hispano-Suiza H6 car in the 1920s. He also won fame for the aircraft engines and guns he designed at Hispano-Suiza as chief engineer, the former including the liquid-cooled V8 engine that powered the famous French SPAD VII and SPAD XIII World War I fighters, and the British Sopwith Dolphin and S.E. 5a, whilst in the field of ordnance he created the Hispano-Suiza HS.404 20mm autocannon, which was of great importance in WW II as the main fighter gun of the RAF from 1941 onwards.
Media related to Marc Birkigt at Wikimedia Commons