Question:  Jagdgeschwader 52 included the fighter ace who joined the Luftwaffe in what year?
Sentence (from "Gerhard Barkhorn"): Gerhard "Gerd" Barkhorn (20 March 1919 – 8 January 1983) was the second most successful fighter ace of all time after fellow "Luftwaffe" pilot Erich Hartmann, the two people to ever exceed 300 confirmed victories.
Relevant evidence: Yes