As the title says this is the german battleship H39. It's mostly known by this name because it was never finished and therefor never received a real name. The ship would have been 277.8 meters long which would have made it the longest battleship ever built.

With a displacement of 63,600 tons (full load) it would have also been the second heaviest class of battleships ever built. The beam is 37 meters and it has a draft of 11 meters.(also full load)

This ship was quite hard to build since there aren't any historical photos of it and also not many 3D models.
I still tried to make the best out of the pictures I had and hope you guys like it.