Question:  Jagdgeschwader 52 was an aircraft used by the flying ace nicknamed what?
Sentence (from "Erich Hartmann"): Erich Alfred Hartmann (19 April 1922 – 20 September 1993), nicknamed "Bubi" ("The Kid") by his German comrades and "The Black Devil" by his Soviet adversaries, was a German fighter pilot during World War II and the most successful fighter ace in the history of aerial warfare.
Relevant evidence: Yes