From his long distance bicycle racer and trainer beginnings in the late 1890s, Léonce Bertin evolved into a motorcycle engine designer/builder and aviation pioneer. In the latter area he started his experiments with helicopters. Unsuccessful in his three rotary designs, he turned his attention to the “easier” fixed wing aircraft. This is the second, and last, of his monoplane designs (his 5th design in total) . Built in 1912, like in all of his previous conceptions Bertin was also the mind behind the engines; in this case a 100 hp twin X 8-cylinder marvel. This decent performer’s story ended tragically. On the summer of 1913 its wing collapsed in flight taking the lives of Bertin and his son, René.
A businesslike and pretty enough monoplane. No identified, but the crew here could well be Bertin father and son.