Flexibility AND strength, huh? I admit that this was mostly an attempt at a dwarven-looking ship without much practical concern.
Does the attached image's propulsion looks doable?
It's not meant to be a regular in any case. Its purpose is to be a flagship and convincent distraction...
:confused: I'm wondering the technical probability and viability of what's practically mobile sea fortresses with 15th to 17th century technology.
First, a slab-like concrete ship, since concrete was already known by the romans and it floats. I believe it would probably look somewhat similar...