Grosstraktor
Grosstraktor was the codename given to six prototype medium tanks built by Rheinmetall-Borsig, Krupp and Daimler, for the Weimar Republic, in violation of the Treaty of Versailles. Constructed in secret, they were tested by Reichswehr units at the Kama tank school in the Soviet Union. They were used for training and retired as monuments after the Nazi party came to power.In 1926 various German companies, including Rheinmetall and Daimler-Benz, each produced a single prototype Großtraktor armed with a large 75-millimeter cannon. Development of the subsequent Neubaufahrzeug started in 1933 when the then Reichswehr gave a contract for the development of a follow-on Großtraktor to both Rheinmetall and Krupp.
