They had about three decades of prominence - from the 1890s through the end of the 1910s. Even then, the British Dreadnoughts were so expensive and so technologically advanced that they immediately made the rest of the British fleet obsolete and incompatible...the Dreadnoughts were too fast for the rest of the fleet to sortie with them and the British Empire couldn't afford to build the cruisers, destroyers and submarines with the same propulsion technology to allow the fleet to sortie simultaneously and then stay in formation.
Battleships were very valuable when providing naval gunfire to land targets. Calling in a 16" shell the size of a Volkswagon would make the enemy's day very, very bad indeed...the issue is having the freedom of maneuver to have a battleship on station offshore without any possibility of being destroyed.
TenuredVulture wrote:Just to be clear--Battleships are totally useless. Probably were never useful.
http://scottlocklin.wordpress.com/2011/ ... some-idea/