The course on the north side of the Glockner Massif with a maximum gradient of 12% covers an altitude difference of 1.285m. But because the start itself was at 1.145 m, and the highest point at 2.400 m, a worsening of engine performance became evident due to the thin air. And then with bad and constantly changing weather the race technicians were really put through their paces. In respect of weather, the Grossglockner is unfortunately by no means timid. Sun, rain or fog can alternate often within minutes. Thus the third and last event on the mountain, on August 6, 1939, suffered severely under this capriciousness.