HMS Defence's destruction at Jutland distinguishes late armoured cruisers from older ships that commanders already knew were fragile. The later vessels appeared armoured enough to be pushed into a capital-ship battle, but their protection could not withstand dreadnought-calibre fire. An older cruiser might have been held back precisely because nobody mistook it for a line-of-battle unit. That fatal ambiguity is contrasted with a hypothetical turbine-powered cruiser carrying a unified 9.2-inch battery and intended for different tasks rather than service as a substitute battleship.
Notable Point · 2:05:38-2:06:48
Why HMS Defence should not have closed at Jutland
Late armoured cruisers looked protected enough to invite aggressive employment but could not survive dreadnought gunfire.