Korpsführer was a Nazi Party paramilitary rank that was the highest rank used by the National Socialist Motor Corps and the National Socialist Flyers Corps. Translated as "Corps Leader", the rank of Korpsführer was held by the single officer in command of the entire organization. The rank was the equivalent of the Sturmabteilung title of Stabschef and the rank of Reichsführer-SS.
The original article can be found at Korpsführer and the edit history here.