How practical would a 24-inch torpedo be for submarines?
Short answerIt is feasible in a purpose-designed SSN, but conversion is difficult and the larger weapon reduces magazine capacity unless the submarine grows.
NotesAdapting an existing 24-inch torpedo would require substantial redesign and integration work. Larger diameter changes tubes, storage, handling equipment, and internal arrangements. A purpose-designed SSN could carry the weapon if those systems were built around it. Each torpedo would consume more magazine volume, reducing the total load. Preserving weapon count would therefore require a larger boat or more space devoted to the magazine.