Above water torpedo tubes on large ships

Frank Fox has told me that he is very opposed to having above water torpedo tubes on cruisers and capital ships. It had been thought that an exploding torpedo could have broken the Hood's back, although I am not sure what the current assessment is. One or more Japanese cruisers were lost from damage sustained when torpedo tubes were hit by bombs from the air. I believe that was what really decided things for Frank Fox. While Frank Fox's primary interest is in 17th Century English ships and naval history, he is also interested in WWII era ships. He is another person who likes to design his own warships, although he does it more infrequently. He is the one who taught me a system for calculating power for ships, using The Speed and Power of Ships for residual resistance and Gertler's book for frictional resistance.