The problem here is that you're trying to dodge the torpedos AFTER they are dropped. Trust me, there is absolutely no way to dodge a torpedo at 3km on a BB. You gotta predict where the bombers are coming from, and dodge, or better, DONT look like an easy target. If you have Crusier AA cover near you, and got plenty of cover to get behind on a bad situation, the carrier is gonna go "Meh" and attack something else.