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.
George Preddy Major George Earl Preddy Jr. (February 5, 1919 – December 25, 1944) was a United States Army Air Forces officer during World War II and an American ace credited with 26.83 enemy air-to-air kills, ranking him as the top P-51 Mustang ace of World War II and sixth on the list of all-time highest scoring American aces.