Hey Captains,
The North Carolina is one of my favorite ships and has been for a long time. The ship has great accuracy, AA and maneuverability. One of the downsides of the North Carolina is the slow shell velocity. I tell everyone that asks for tips on the North Carolina, to aim where you want and add a little more lol. The North Carolina is also the USN BB that gets you out of the 21 knot doldrums.
Tips for the North Carolina:
When you aim, add a little!
Don't go broadside because you will take big damage.
You will find yourself bow in sometimes because you do have good bow armor.
Your guns are accurate but pretend the third turret doesn't exist unless you are kiting away or maneuvering.
The shells hit hard and you typically get good pen damage on the superstructure because of the way the shells fall.
Good luck with the North Carolina and thanks for asking about tips to play her!