I realize that an U-boot below the surface has to keep an equilibrium very different from the surface´s. During a routine dive this equlibrium can be achieved by calculations as we can learn in the book from Bucheim but, during a crash dive I suppose the matter is very different because part of the crew goes forward to facilitate to reach the deep as fast as possible. At this point I Imagine that the crew return to the battle station and moves across the ship changing, therefore, the weight distribution and obliging to get the trimming again.

How is the U-boat trimmed after this situation.

Thanks

P.d.. I apologise for my english. I suppose it is not very good