HMS Warrior is an unique ship within the history of the Royal Navy. She was launched in 1860, having been built as a response to recent developments in the French Navy. As the first ship built of iron, rather than using metal cladding she represented a major step forward in the evolution of fighting ships. When she was launched she attracted much more attention than any other preceding ship had ever had.
She was a hybrid between the first modern battleships and the classical ships of the line from the preceding Napoleonic period. She had the capability both sailing under her engines and under sail. Her unique features include retractable steam funnels, so that when she was under sail power the profile of the funnels did not interfere with the flow of the wind. Her gun layout and her facilities were still very reminiscent of ships of the Napoleonic era.
HMS Warrior remained in active naval service for 22 years during which time her guns never fired in anger. By the time he was retired from service ship design had already moved on and the turn-of-the-century would see the dispensing with the gun arrangements of the previous era and the introduction of deck based pivot guns as on modern battleships. Indeed even in 1860 Warrior has a very early prototype of these guns in the arrangements of her bow and stern chases, the direction of file which could be changed through 100° arc home side to side by mechanical means.

After active service, HMS Warrior used by the Navy in a number of different roles with in ports. Because of her construction, the hull lasted very well and eventually she was sold by the Navy for use as a floating jetty. She ended her working life as a floating oil jetty in Milford Haven in south-west Wales. In 1979, recognising the importance that the ship had played in the development of warships she was purchased, towed to Hartlepool and underwent restoration to her original 1860s condition. She is now on permanent display at the Portsmouth historic dockyard not far from that other great Royal Naval vessel HMS Victory.