Last tests I did with the 16 inch batterys on the battleship, it took 3 salvos to sink the CV with a 30 second reload. I removed them from my gunnery terrain because as an addition to a task force, often they covered up the other ships gun positions in the hanger. It candle sticks like the CV so I'm suspecting it will be it's own task force at some point. I've been holding back on releasing my offline gunnery training terrain in the hopes it will become the center of a new task force so I can incorporate it.