Hans Grade was the first German to fly in a triplane of his own design and with his own engine. Before First World War Grade had a civil flying school at Bork. His aircraft, mostly high-wing monoplanes, were not adopted by the military. First Germanjooping flights made in a Grade monoplane with landing gear both above and below wing.
Hans Grade had built 17 different types, while the general layout was very similar in most cases.
Sold factory to Aviatik during First World War.
All Aero 