"At 48 kills, Werner Voss is ranked fourth among Germany's aces and around 14th among all World War I aces. This in itself is a remarkable feat but when you realize just how short his career was, the remarkable becomes amazing in the annals of aerial combat. Voss achieved his 48 victories in just over ten short months. It took von Richthofen, the Red Baron two years to achieve his 80 victories. At the time of Voss's death, he was just 12 kills short of von Richthofen's record. Von Richthofen had shot down 9 planes before Voss had made a confirmed Kill. In other words Plane for plane, Voss had shot down 48 to von Richthofen's 51 kills during the same time period. "
Source:
Werner Voss -- 48 Victories