[U49]

I use your picture in post #5 as my reference:

I can see the top of the rudder sticking slightly above the surface.
So we have a comparable load point...

No I estimate the size of various parts relative to each other..
From the upper edge of the hull/upperdeck to the top of the funnel is appx. the same visual length as from waterline to the top of the bow...
Comparing with pictures in post #12 it seems the load situation (judging by rudder) is comparable. I feel the height of the hull is lower then necessary..?

I would estimate some more 10-20% for the height of the hull could make the difference?

Maybe tomorrow I will try to overlay both pictures...