HMS "Dreadnought" was a Royal Navy battleship that revolutionised naval power. The name of the ship, and the class of battleships named after her, means "fear nothing". "Dreadnought"s entry into service in 1906 represented such an advance in naval technology that her name came to be associated with an entire generation of battleships, the "dreadnoughts", as well as the class of ships named after her. Likewise, the generation of ships she made obsolete became known as "pre-dreadnoughts". Admiral Sir John "Jacky" Fisher, First Sea Lord of the Board of Admiralty, is credited as the father of "Dreadnought". Shortly after he assumed office, he ordered design studies for a battleship armed solely with guns and a speed of . He convened a "Committee on Designs" to evaluate the alternative designs and to assist in the detailed design work.