Which 20th century battleship featured artillery with a specially reinforced barrel and steam turbine propulsion?
Built-up gun A built-up gun is artillery with a specially reinforced barrel. An inner tube of metal stretches within its elastic limit under the pressure of confined powder gases to transmit stress to outer cylinders that are under tension. Concentric metal cylinders or wire windings are assembled to minimize the weight required to resist the pressure of powder gases pushing a projectile out of the barrel. Built-up construction was the norm for guns mounted aboard 20th century Dreadnoughts and contemporary railway guns, coastal artillery, and siege guns through World War II.
List of sunken battlecruisers Sunken battlecruisers are large capital ships built in the first half of the 20th century that were either destroyed in battle, scuttled, or destroyed in a weapon test. They were similar in size and cost to a battleship, and typically carried the same kind of heavy guns, but battlecruisers generally carried less armor and were faster. The first battlecruisers were developed in the United Kingdom in the first decade of the century, as a development of the armored cruiser, at the same time the dreadnought succeeded the pre-dreadnought battleship. The original aim of the battlecruiser was to hunt down slower, older armored cruisers and destroy them with heavy gunfire. However, as more and more battlecruisers were built, their opponents became ships of their own type, not slower, weaker vessels.