I think but may be wrong arent Russians building a twin hulled carrier capable of having a sub suface between the twin hulls to re arm etc bad tactics really as you are gonna be stationary 2 targets for the price of one sorta rings like the Milch cows of WW II easy pickings for coastal command.
I have a book on the Yamato big big battleship 18" guns and from the grey matter I think her magazines were protected by 37"of armour took allot to sink her and the sister Mushashi @ 19 torpedoes for the Yamato and a few bombs for good measure.
Some say the Iowa class guns were better that the 18's but I cannot remember either ships coming to grips with an Iowa class would have been an interesting stoush though
Heres some duff on her;
AP projie weight 1,460 kg Max Range 42,050m
HE - 1,360
Total turret weight with ammo 2,774 tonnes stowed 60 projectiles in the turret rotating structure (20 per gun)
Rifling grooves in barrel 72
Low elevation firing cycle times 28 seconds
45 degree firing cycle times 40 seconds
Total weight in trial condition 70,209 tonnes
And some thing totaly left field to show how exact the
Japanese
were it took 7,507,536 welding electrodes to build her
Source - The Battleship YAMATO By Janusz Skulski