[Stig Jarlevik]

Thanks Jean

I think both I and Clint know the rudimentary functions of both pre-war and wartime training.

What at least I don't know is the interaction between the civil schools and the military ones and what really happened when the war broke out. Neither do I know if any such interaction continued during the war and how it really functioned. Did "civil" Flying Schools exist side by side with military ones and if yes how was their aircraft procured, directly with the manufacturers or via military channels?
Probably there was a transitional period at least during 1914 and maybe that is what we are looking at here. The Schools continued to use their own serial range but had to use crosses, which probably was made mandatory more or less straight away after the war had broken out.

With regard to Hagenau, there is no way of knowing if the aircraft really was from the nearest FEA units or not. That is what happens when albums are plundered.....

So perhaps we are looking at a time period 1914-15 with these photos?

Cheers
Stig