Hi Gunnar and Rammjaeger,
Kasta 20 it should be indeed. They actually did attack the bridge and at least partially destroyed it in September 1916.
However, the part on the Gotha's comes from the... Roden factory !
I've tried to ask that what source they had for this, but didn't get an answer yet...
As to the part of the eastern front with the Kagohls and Kasta's my knowledge is very limited but concerning planes, I was really surprised that there were any Gotha's.
AEG, Rumpler, Fdh, even Siemens Schuckert R types with the RFA, but never had heard anything of the kind either, which makes me very very curious of course ...
For the moment most of my research has been concerning the attacks on England, in which cases I have both sides of the story in many cases.
I hope to find more at Siemens archive and at Bayern archives...
Does anyone know what they have in Freiburg on the Kagohl's/Bogohl's ?
Thanks and best from Johan
BTW Roden states it were Gotha's G II