Over 1,000 missions. 222 aerial victories. Shot down 16 times, including 9 bailouts.

He flew the Bf.109 in the Battle of Britain in late 1940.

He went to Tunisia in late 1942 when the Luftwaffe sought to check the American advances in North Africa. In February, 1943, he was flying the Fw.190 with J.G. 2 against the Americans. On the 9th, while based at Kairouan, his unit got word of an attack by dozens of USAAF bombers and fighters. They attacked the B-17s, as the P-40s, P-38s, Spitfires and Hurricanes came to defend them. In the ensuing dogfight, the P-40s went into a defensive Lufbery. But Rudorffer repeatedly penetrated it, and shot down six of the Curtiss fighters in a few minutes. As the dogfight broke up, he spotted some P-38s below, and destroyed two of them. Eight in one day! One of his best days ever.

He was sent to Russia in August, and achieved great success on that front as well, downing eleven Russian machines on two different occasions.

In 1944, he flew the Me.262 jet against the U.S. bombers that were attacking Germany. While the Me.262 was very fast, it had a lot of bugs, and there were simply too many Allied aircraft by that time.

Rudorffer survived the war.