Yeager demonstrated outstanding flying skills and combat leadership. On October 12, 1944, he became the first pilot in his group to make "ace in a day," downing five enemy aircraft in a single mission. Two of these kills were scored without firing a single shot: when he flew into firing position against a Messerschmitt Bf 109, the pilot of the aircraft panicked, breaking to starboard and colliding with his wingman. Yeager said both pilots bailed out. He finished the war with 11.5 official victories, including one of the first air-to-air victories over a jet fighter, a German Messerschmitt Me 262 that he shot down as it was on final approach for landing.