[landser88]

Well they were even a problem. I try to explain this a bit, because I made two interviews with two members of the so called "Eisenbahnexperten".
Low flying was necessary to find a train in the darkness. They easily copied the railroad in hoping to find some trains no way. Didn't that, then they attacked the next railroad station in the area. Of course they used ZV (Zeitverzögerung) bombs for very low bombing.
After every attack, they got next day from a recconaisance plane the result in pictures. And they could see the destroyed trains, flags, depots etc. as they mentioned a 80% effectivity. Well not every crew reached these results, it was the question of experience.
And last but not least, in the book KG 55 you can read: "Der Feindnachrichten-Abhördienst im Stabe General Pflugbeil berichtete uns, wie der Schwiegersohn Stalins (der damalige Eisenbahnminister General Karganowitsch) über die Schmidt'schen Vandalen schimpfte und befahl, diese Himmelskunde herunterzuholen."
Olt. Franz Schmidt was the Staffelführer of the 14 (Eis.).

With many regards

Miro