Prince Consort-class ironclad
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HMS Royal Oak in 1868
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| Class overview | |
|---|---|
| Name: | Prince Consort |
| Operators: |
 Royal Navy
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| Subclasses: | HMS Royal Oak |
| Completed: | 4 |
| Scrapped: | 4 |
| General characteristics (HMS Ocean) | |
| Type: | Armoured frigate |
| Displacement: | 6,832 long tons (6,942 t) |
| Length: | 273 ft 1 in (83.2 m) |
| Beam: | 58 ft 5 in (17.8 m) |
| Draught: | 27 ft 6 in (8.4 m) |
| Installed power: | 4,244 ihp (3,165 kW) |
| Propulsion: |
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| Sail plan: | Barque rig |
| Speed: | 12 knots (22 km/h; 14 mph) |
| Range: | 2,000 nmi (3,700 km; 2,300 mi) at 5 kn (9.3 km/h; 5.8 mph) |
| Complement: | 605 |
| Armament: | 24 × 7-inch (180 mm) rifled muzzle-loading guns |
| Armour: | |
The Prince Consort class of battleship were four Royal Navy wooden-hulled broadside ironclads: HMS Royal Oak, HMS Prince Consort, HMS Ocean, and HMS Caledonia. They were originally laid down as Bulwark-class battleships, but were converted to ironclads. Royal Oak was Britain's fifth ironclad battleship completed.
Prince Consort, Ocean, and Caledonia were built to a common design and are today known as the Prince Consort class, though contemporaries knew them as the Caledonia class.Royal Oak was their half-sister.
The Bulwark class of nine 91-gun two-decker steam line-of-battle ships were laid down between March 1859 and October 1860 (a further three were ordered, but never laid down, and eventually cancelled in 1863). Their dimensions were the same as HMS Duncan (101 guns), but had a new timbering plan to suit the smaller armament. The reduction in armament was intended to improve the efficiency of the guns.Bulwark and Robust were suspended in March 1861 in an advanced state of construction and were eventually broken up in March 1873 and August 1872 respectively. The remaining seven ships of the Bulwark class were less complete state and were converted into 'ironclad frigates'. Of these Triumph (later renamed Prince Consort), Ocean, and Caledonia were converted to 'broadside ironclads' with 1000 nhp engines. Royal Oak had a similar conversion but with the original 800 nhp engine. Royal Alfred, Zealous and Repulse were later converted into 'central battery ships'.
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