Hull is too narrow for speed design issue

[antollare]

I am currently playing as japan on the new patch update 1.00.008. I have carried this game over from the previous launch release. When I try to build a BC or BB I get the following message:

Hull is too narrow for speed > 18 kt and triple/quad turrets in A or Y positions and TPS more than 1.


Design is not legal! Please correct errors listed above.

I think it is related to the triple guns that I have in the A and Y position. But it is not clear how to make the hull wider.
If this is working as designed I would love to know how to fix it as I didn't seem to have this issue in the previous version.

[WilliamMiller]

What year is your game at? This mechanism is used to represent the fact that ships of earlier periods with a certain speed or greater had to have a more narrow hull form to achieve that speed; because of this it was generally impossible to fit the wider triple or quad turrets on such a hull in the fore/aft-most positions (i.e. mounts 'A' and 'Y'). You would need to either reduce the speed of the ship or change the mounts to dual guns.

[Searry]

Yeah the error description for this could be improved as it's not the clearest though I did understand what the error is. Didn't come to my mind to mention this during testing.