Joachim Munchenberg's shot downs in Russia

[kaki3152]

From different accounts
(1) Das Jadgeschwader 51-Meyer/Stidonk
(2) Die Ritterkeuz Trager der Luftwaffe - Obemaier

In "Ritterkeuz". it lists his service with JG-51 as from July 22,1942 through September 27.1942. During this time he shot down 33 Soviet planes was himself shot down twice. Does anyone have the dates he was shot down?
JIm P?

[Nokose]

In Priens JFV 9/II it shows that the Stab/JG51 had no Bf-109's shot down during that time by Russian aircraft but in the footnotes it qoutes Guenther Schack as saying that he had been shot down twice before 10Sep42. Bergstrom in volume 3 Black Cross/Red Star also has a remark about him being shot down twice in the first 4 weeks. During that time frame IV/JG51 had several Bf-109's shot down with no pilot name listed. So was he using Bf-109's from other staffel of JG51?

[Nokose]

It seems that this thread was brought up back in 2006 here. It all seems to be based on Guenther Schack recalling the incidents. Did he every publish anything on his wartime years? Munchenberg's flugbuch would probably give the answer if it was still around.