Hi,
On page 24 in Heinz Mankau/Peter Petrick : Messerschmidt Bf 110, Me 210, Me 410 make a reference to a Generalluftzeugmeister meeting on 19 July 1940, where it was noted that up to that date one Gruppe of Bf 109 and three Gruppen of Bf 110 had re-engined with DB 601N.
I am pretty sure from photograhic evidence that the said 109 Gruppe was II./JG 26. But which were the 110C Gruppen...?
Thanks in advance.

Bf 109E-4/N, W.Nr. 1190, 'White 4', flown by Uffz. Horst Perez