When was the second most successful fighter ace of all time died who was after Erich Hartmann and before Günther Rall?
Jagdgeschwader 52:  It was the unit of the top three scoring flying aces of all time, Erich Hartmann, Gerhard Barkhorn and Günther Rall. 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.
8 January 1983