In 1927 he attended a summer camp for young boys interested in aviation, and it was here that Baur developed his desire to fly.
He also did some acrobatic flying at various points around Japan,[2]: 3 as well as a flight over the erupting volcano Mount Asama from a distance of 50 meters.
He stayed with the German Aviation Research Institute until 1939, when he received an offer to become the Chief Test Pilot for the Messerschmitt Company.
He spent several months in the United States demonstrating the Me 262 providing technical help to American test pilots, and explaining about the aeronautic work he had done in Germany.
[2]: 3 Baur worked several odd jobs after the war, including serving an interpreter to the commander of an American Army Air Force Base in Germany, and as a sales representative for a company that manufactured car batteries.