The history of BMW

Rapp was sub-contracted by Austro-Daimler to manufacture their V12 aircraft engines. Austro-Daimler at the time was unable to meet its own demands to build V12 Aero engines. The officer supervising aero-engine building at Austro-Daimler on behalf of the Austrian government was Franz Josef Popp. When it was decided to produce Austro-Daimler engines at Rapp Motorenwerke, Popp was delegated to Munich from Vienna to supervise engine quality.