HMS Dreadnought (1906): The Ship That Made Every Other Battleship Obsolete Overnight

Built at Astonishing Speed

HMS Dreadnought was built at HM Dockyard, Portsmouth, then regarded as the fastest-building shipyard in the world, and the speed of her construction remains genuinely remarkable even by modern standards: laid down on 2 October 1905, launched on 10 February 1906 and christened by King Edward VII, and commissioned on 11 December that year, a total build time of just fifteen months from keel to commissioning. This achievement rested on intensive prefabrication work that had actually begun in May 1905, five months before formal construction started, and on a workforce that swelled to 3,000 men working gruelling 69-hour weeks, six in the morning to six at night, six days a week, with only a thirty-minute lunch break and mandatory overtime, a genuinely punishing pace that reflected just how urgently the Admiralty wanted this ship completed.

An All-Big-Gun Revolution

HMS Dreadnought's design represented a radical break from every battleship that had come before her. She carried ten 12-inch guns in five twin turrets, a uniform 'all-big-gun' main battery capable of firing broadsides of eight guns simultaneously, a striking departure from the mixed batteries of large and smaller-calibre guns that earlier battleships had carried. This uniformity solved a genuine and pressing tactical problem: at long range, the shell splashes from numerous smaller guns made it almost impossible for gunnery officers to distinguish and correct the fall of shot from the larger guns, badly hampering accurate long-range fire. HMS Dreadnought's single calibre of main armament eliminated that confusion entirely, allowing genuinely accurate gunnery at ranges previously considered impractical.

HMS Dreadnought was also the first capital ship in the world to be powered by steam turbines, using Parsons Marine Steam Turbine Company machinery producing 23,000 shaft horsepower and driving her to a rated 21 knots, actually achieving 21.6 knots during sea trials on 9 October 1906, a speed that matched or exceeded contemporary battleships while carrying dramatically heavier firepower. Admiral Fisher and his Committee on Designs had recognised that the combination of superior speed and overwhelming, uniform gunpower would make every existing battleship instantly outdated, and they were entirely correct: HMS Dreadnought rendered every pre-dreadnought battleship in every navy on earth obsolete the moment she entered service, and every capital ship built anywhere in the world from that point on became generically known, regardless of nationality, as a 'dreadnought'.

The Only Battleship to Deliberately Sink a Submarine

HMS Dreadnought served as flagship of the 4th Battle Squadron in the North Sea at the outbreak of the First World War, based at Scapa Flow, and took part in routine fleet operations while avoiding any major fleet engagement for most of the war. Her one genuinely significant combat action came on 18 March 1915 in the Pentland Firth, when the German submarine SM U-29, commanded by the celebrated U-boat ace Otto Weddigen, surfaced directly ahead of her after firing a torpedo at HMS Neptune. HMS Dreadnought gave chase and rammed the submarine, cutting it clean in two, narrowly avoiding a collision of her own with HMS Temeraire, which had also been attempting to ram the same target. This action makes HMS Dreadnought the only battleship in naval history ever to have deliberately sunk an enemy submarine, a genuinely unique claim to fame for a ship already famous for entirely different reasons.

HMS Dreadnought missed the Battle of Jutland on 31 May 1916, the largest naval battle of the entire war, because she was undergoing a refit at Portsmouth between April and June that year, an almost unbelievable irony given that the ship whose name defined an entire era of battleship design took no part whatsoever in the greatest clash of dreadnoughts the war ever produced. She was relegated to coastal defence duties in the English Channel that July, before returning to Grand Fleet service in March 1918.

A Quiet End

HMS Dreadnought was paid off on 7 August 1918, briefly recommissioned as a tender to HMS Hercules for Reserve Fleet duties in February 1919, and was put up for sale on 31 March 1920. She was sold for scrap to Thos. W. Ward for around £2.10 per ton on 9 May 1921, and was finally broken up at Ward's premises in Inverkeithing, Scotland, beginning 2 January 1923. Very few artefacts of this genuinely transformative ship survive today; a single gun tampion is held at the National Maritime Museum in Greenwich, a modest physical legacy for a warship whose design triggered a global naval arms race and reshaped battleship construction for every major navy on earth for decades to come.