The description of HMS Dreadnought as an all-big-gun battleship applies to its principal armament. Its main battery used one calibre, 12 inches, instead of combining different heavy gun types. The ship still carried numerous 3-inch guns to engage torpedo boats and enemy torpedo-boat destroyers. Those weapons supplied a defensive function that the uniform heavy battery did not remove.
Notable Point · 9:44-10:24
Dreadnought's all-big-gun label still allows small guns
HMS Dreadnought standardized its main battery around 12-inch guns while retaining numerous 3-inch weapons against torpedo craft.