[Kodaita]

I agree that your torp should have messed up the screws. Probably wouldn't snap the shafts, the warhead is pretty dinky and the shafts are extremely sturdy. However it probably would damage the shaft seals and cause some nasty flooding. I would also expect some kind of rudder damage. So even if it doesn't sink, it's done chasing after you. If you do mod the damage, keep in mind that in some warships the engine rooms are actually closer to midships. I served on the USS San Jacinto as an enginemen, and both our main engine rooms as well as both auxilary rooms were almost dead center. We had crew quarters, several different machine shops/dc lockers/tool rooms, the JP5 pump room and after steering all well aft of the machinary spaces.