[joegertler]

Hi Kees;
For dimensions of Johannisthal flying field in 1914, you will have to play with this map from the meet in Oct 1910. This map taken from the original official program of that meet. You will notice that the SPLIT field has a dotted line outlining the flying area of the section on the right. It gives the dimension of that TOP dotted line as 2.5 Km. All the factory buildings grew up around the field, I have MANY of the factory building layouts in individiual maps, like Albatros, Daimler etc etc. But the dimensions of the main field in center did not change. so you should be able to get a pretty close estimate if you scale it out..( I figure a little bit more than 6.5 KM across the top (widest) part of the filed..and less flying area, of course, due to the buildings and other restrictions..)Sorry about the small size, but had to keep the image small enough to load here..