Weissach is a municipality in the district of Böblingen in Baden-Württemberg in Germany.The Weissach axle is named after the town, where the research centre of Porsche is located.Erich Hartmann (born April 19, 1922, in Weissach, died September 20, 1993 in Weil im Schönbuch) was a Luftwaffe pilot in World War 2. With 352 confirmed kills, he was the most successful fighter pilot in the history of air combat.