HMS Dreadnought, a battleship of the Royal Navy, holds a unique place in naval history due to its revolutionary design and significant impact on naval warfare.

Built in the early 20th century, this warship set new standards and led to a new class of battleships known as “dreadnoughts.” Here we explore the construction, specifications, armament, famous battles, and legacy of HMS Dreadnought.

Portsmouth Naval Shipyard

Portsmouth Dockyard, located in the historic naval city of Portsmouth, England, is an iconic and enduring symbol of Britain’s naval power and maritime heritage. With a history dating back several centuries, it has played a pivotal role in shaping the course of naval warfare and the development of the Royal Navy.

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Established in the late 17th century, Portsmouth Dockyard was strategically located on the south coast of England. It provided easy access to the English Channel and serving as a key naval base. Its primary purpose was to construct, repair, and maintain the warships of the Royal Navy, ensuring their operational readiness and supremacy at sea.

Portsmouth Historic Dockyard as seen in 2005. HMS Victory is in the centre. HMS Dreadnought was built here.

Portsmouth Dockyard has witnessed the construction of numerous iconic and influential warships throughout history. One of the most famous vessels built at the dockyard is HMS Victory. Victory was the flagship of Admiral Lord Nelson during the Battle of Trafalgar. Launched in 1765, this mighty warship stands as a symbol of British naval prowess and has become a major tourist attraction in Portsmouth.

Another notable ship constructed at Portsmouth Dockyard is HMS Warrior, an iron-hulled warship launched in 1860. It represented a significant technological advancement, introducing steam propulsion and iron armour, revolutionizing naval design and signalling the end of the era of wooden sailing ships.

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The dockyard supported the British war effort during both World Wars, providing essential services for the Royal Navy’s vessels. It also served as a base for the assembly and launch of landing craft during major amphibious operations. This included the Normandy landings in World War II.

Construction and Launching

In 1905-1906, HMS Dreadnought was constructed at the Portsmouth Dockyard in England. Its name, meaning “fear nothing,” was derived from an earlier English battleship.

The decision to name the new ship “Dreadnought” symbolised its ground breaking design and capabilities. The construction process involved the collaboration of skilled engineers, shipbuilders, and naval architects.

HMS Dreadnought. The ship that gave others their name.

After completion, HMS Dreadnought was launched on February 10, 1906, and commissioned into service in December of the same year.

Design and Specifications

HMS Dreadnought was equipped with powerful steam turbine engines, a departure from the traditional triple-expansion engines used in previous battleships. This innovation provided enhanced speed and manoeuvrability. The battleship could achieve a top speed of 21 knots, making it faster than its contemporaries.

HMS Dreadnought was considered a “super-dreadnought” due to its impressive displacement of approximately 18,120 tons. Its size and weight surpassed earlier battleships, giving it a superior presence on the seas. The increased displacement allowed for improved stability and the accommodation of advanced weaponry and equipment.

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The battleship required a substantial crew to operate its sophisticated systems and maintain its effectiveness in combat. HMS Dreadnought had a complement of around 800 officers and men. It provided accommodation for officers, crew members, and a contingent of marines, ensuring their comfort and efficiency during extended deployments.


HMS Dreadnought’s most striking feature was its ten 12-inch (305 mm) guns, mounted in five turrets. This innovative arrangement allowed for a broadside of eight guns, significantly increasing its firepower compared to previous battleships.

The main battery of HMS Dreadnought set a new standard for battleship armament and had a substantial impact on subsequent naval designs.

HMS Dreadnought had fearsome 12 inch guns as well as other armaments including torpedoes.

In addition to its formidable main battery, HMS Dreadnought was equipped with twenty-seven 4-inch (102 mm) guns. These secondary guns were strategically positioned around the superstructure and offered anti-torpedo boat capabilities. The distribution of these guns ensured a comprehensive defensive perimeter for the battleship.

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HMS Dreadnought featured five submerged torpedo tubes, providing it with offensive capabilities against enemy ships. These tubes were located on the broadside of the ship, below the waterline. The inclusion of torpedo tubes added versatility to the battleship’s armament and expanded its range of engagement.

Famous Battles and Engagements

World War I (1914-1918)

Throughout World War I, HMS Dreadnought participated in various operations, primarily in support of the blockade of Germany. It undertook convoy escort duties, safeguarding merchant ships from German U-boat attacks. The battleship’s imposing presence and firepower acted as a deterrent against potential threats and helped maintain the security of vital supply lines.

The Battle of Jutland, fought between the British Royal Navy and the Imperial German Navy during World War I, showcased the prominence of HMS Dreadnought. As part of the British Grand Fleet, the battleship played a crucial role in the engagement. Although it did not suffer significant damage, its presence and firepower influenced the course of the battle.

A German propaganda poster boasting of its success against the Royal Navy. HMS Dreadnought was barely hit during the battle.

The Battle of Jutland marked a turning point in naval warfare and highlighted the importance of dreadnought-style battleships.

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After World War I, HMS Dreadnought underwent modernisation and upgrades. However, the rapid advancements in naval technology rendered the battleship obsolete compared to newer designs. It transitioned to a training and reserve role during the interwar period, serving as a platform for training future naval personnel.

World War II (1939-1945)

During World War II, HMS Dreadnought’s age and outdated design limited its involvement in active combat. It primarily served as a harbour defence and training ship. The battleship’s significant contributions were in its legacy and influence on naval warfare rather than direct participation in battles.

A New Era

HMS Dreadnought, with its ground breaking design and powerful armament, revolutionised naval warfare. Its construction, specifications, and armament set new standards for battleships and established the dreadnought class.

In famous battles such as Jutland, HMS Dreadnought demonstrated its superiority and left a lasting impact on naval strategy and tactics. While its later career was marked by a transition to a training and reserve role, the legacy of HMS Dreadnought endured.

Its influence on subsequent naval designs and its role in shaping the course of naval warfare cannot be overstated.

A 3 view of HMS Dreadnought showing its guns It was advanced in its day to say the least.

HMS Dreadnought’s revolutionary design and advanced armament paved the way for a new era in naval warfare. The concept of an all-big-gun battleship with uniform calibre guns became the standard for future warship designs.

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Nations around the world raced to develop their own dreadnoughts, sparking a naval arms race that would reshape the balance of power on the seas.

Sadly HMS Dreadnought was eventually sold for scrap. Consequently, it was dismantled and its materials recycled.


The impact of HMS Dreadnought extended beyond its immediate contributions in battles. It prompted the obsolescence of older battleships, forcing navies to adapt or be left behind.

Its introduction highlighted the importance of speed, firepower, and technological innovation in naval strategy. The dreadnought concept led to the development of larger, faster, and more heavily armed battleships, setting the stage for the naval conflicts of the 20th century.

Furthermore, the influence of HMS Dreadnought can be seen in subsequent ship designs and naval treaties. The Washington Naval Treaty of 1922, for instance, was a direct response to the dreadnought arms race and aimed to limit the construction of new battleships.

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The treaty sought to maintain a balance of power among the major naval powers and prevent further escalation of naval armaments.

Today, although HMS Dreadnought no longer sails the seas, its legacy lives on. The term “dreadnought” has become synonymous with a new era of naval power and innovation.

Guns on guns. Dreadnoughts 12 pounder guns on top of the 12 inch guns. That’s some firepower.

The battleship’s impact can be felt in the design and development of modern warships, which continue to prioritise firepower, speed, and technological advancements.

HMS Dreadnought was a game-changer in naval warfare. Built with state-of-the-art technology and a revolutionary design, it set new standards for battleships and ushered in the era of dreadnoughts.

The Name Lives on

It’s worth noting that the name HMS Dreadnought was reused for subsequent British warships. For example, the aforementioned HMS Dreadnought (1915), a Revenge-class battleship, and later the nuclear-powered submarine HMS Dreadnought (S101), which is currently under construction.

These vessels carry the name forward, paying homage to the ground breaking legacy of the original HMS Dreadnought.

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Its massive firepower, speed, and displacement made it a formidable presence on the seas. From its famous battles to its influence on subsequent naval designs and treaties, HMS Dreadnought left an indelible mark on naval history. Its legacy continues to resonate in the development of modern naval vessels, ensuring its place as a legendary ship in the annals of maritime warfare.