Alibre cad Bismarck engine room

I've put in a basic engine room with boilers turbines and prop shafts
I think it had 12 boilers (yellow) 3 turbines (red) and 3 shafts
About 60+ percent of the ship was engine, you need a lot of power for 40,000 tonnes to get over 30 knots
Usually some boilers would be kept in reserve or be getting maintenance done and the ship would cruise on 6 or 9 units
Once you add in 1000 sailors, the fuel oil, the stores and the ammo there's not a lot of room left for anyone
The hull looks ok now because you can render individual parts as shaded in the assembly, I didn't know that was possible until now