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.
Hans-Ekkehard Bob Hans Ekkehard Bob (24 January 1917 – 12 August 2013) was a German fighter pilot, serving with the Luftwaffe. During World War II, Bob flew approximately 700 combat missions, and claimed 60 victories; 37 of which were on the Eastern Front.