Did the Royal Navy have a consistent ship-type system, and what did it call the Scharnhorst class?
Short answerThe Royal Navy's consensus was that the Scharnhorst-class ships were battleships.
NotesThe Royal Navy had a ship-type system to an extent, although the exchange does not spell out a complete notation scheme comparable to BB and CA. Its consensus classified Scharnhorst as a battleship. National classifications can differ from later popular labels.