Jagdgeschwader 52 included the fighter ace who joined the Luftwaffe in what year?
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. Barkhorn joined the "Luftwaffe" in 1937 and completed his training in 1939.
Johannes Wiese Johannes Wiese (7 March 1915 – 16 August 1991) was a German "Luftwaffe" pilot during World War II, a fighter ace credited with 133 enemy aircraft shot down in 480 combat missions. He claimed all of his victories over the Eastern Front, including over 50 Ilyushin Il-2 Shturmovik ground attack aircraft.