At the Daimler engine company, Max Friz had tried in vain to develop an oversized, high-compression engine, but Paul Daimler had firmly committed himself to supercharger technology. Not until he had moved to Munich was Friz able to put his own ideas for a high-altitude engine into practice. In the space of a few weeks he designed a new aero-engine, which, with an innovative carburettor and a variety of other technical details, was superior to any other German aero-engine. Later, this engine would gain world renown under the designation "BMW IIIa".