Ship develops a massive list due to tiniest CoM offset

[SpacePixel]

Good afternoon, gentlemen.

Please observe my tiny aircraft carrier:

 

Now, my problem is that the CoM is slightly offset off the centreline due to the weight of the superstructure:

I would think nothing of it, however this small offset results in the following:

That's unfortunate, but I could just balance the superstructure with an ore tank or something, right? I could and I did -- see picture 1. This, however, does not remedy the issue of the carrier developing a list the moment the CoM moves even a little off the centreline -- aircraft movements on the deck cause near-capsizing, to say nothing of a hard landing -- on a runway that short one rarely has the luxury of choosing where to touch down. The floats solve the problem of the list...

...but look utterly ridiculous, don't fit in the fairing (yes, the flight deck folds to fit the carrier into a 5 m fairing) and therefore will never be used. A massive keel is also not an option.

So my question is, how do I make the bloody thing stable?

I've filling up the tanks under the waterline, emptying them, filling them with only liquid fuel -- no change in the list. I've been giving some consideration to creating an active system to steady the carrier with SAS or moving a weight port and starboard, but I've not yet been able to figure out the details. As such, any help will be appreciated.

[jimmymcgoochie]

You’re trying to balance an inherently top-heavy object on a relatively small footprint. Add some ballast to the bottom so the CoM is much closer to the waterline (or preferably below it) and try to widen the lower part of the hull if possible.

[Reactordrone]

The cylindrical buoyant sections are effectively giving you a heavy tumblehome on the hull so there's not much self righting when it starts to list. Combined with the high CG it will have a tendency to want to roll over.

[FleshJeb]

This is why I did trimarans or wide catamarans. Dihedral hydrofoils help as well.

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