1910/11 two-seater monoplane of Dipl.-Ing. Karl Grohmann, with a high-positioned “Zanonia” wing and a fully open fuselage. It was powered by a 50 hp Argus engine, which drove the tractor screw via a chain. Immediately on its first flight the machine flew 300 meters. Later Grohmann built a single seat development of the 1911 machine. Sometimes the two-seater is identified as the Grohmann I and the single-seater as the Grohmann II, but this is probably a spurious coding introduced years after the event.
All Aero 