How did dockyards cut and remove battleship-grade armour plate during repairs?
Short answerThey removed rivets where possible and otherwise used cutting torches and heavy mechanical tools to take out the damaged section.
NotesArmour attached as a discrete riveted plate could be handled differently from damage that crossed a larger section. Workers could remove the rivets and replace an intact plate-sized unit. More extensive removal called for cutting torches and heavy tools comparable to the jaws of life used in vehicle rescue. This follow-up adds the practical workshop method to the earlier answer about spare armour stocks and fitting replacement plates.