the thread become an idea after short discussion with my friends about cranes used on the building sites.
As far as I know the heaviest one is Demag and it was 80t class.
My questions are: where they belonged to? Marine Fest Stabs? or for OKH? Are there any detailed references with drawings of them? When I saw 80t crane in mobile pssition I thought it was Culemeyer trailer with heavy weight

Below few photos of 80t cranes: from buidling of Fjell battery in Norway and few not identyfied yet. Worth of note is a unit sign of Famo: look like outlined bastions layout-this might suggest Pionier unit but witch one?
http://upload.wikimedia.org/wikipedia/c ... r_1942.jpg
http://upload.wikimedia.org/wikipedia/c ... 1942_2.jpg
http://upload.wikimedia.org/wikipedia/c ... r_1942.JPG
http://upload.wikimedia.org/wikipedia/c ... g_1942.jpg
Regards and Happy Easter
@ndrew