HMS ''Ocean'' was the last of the

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

's four s to be completed in the mid-1860s. She was originally laid down as a 91-gun

second-rate In the rating system of the Royal Navy used to categorise sailing warships, a second-rate was a ship of the line which by the start of the 18th century mounted 90 to 98 guns on three gun decks; earlier 17th-century second rates had fewer guns ...

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, and was converted during construction to an

armoured frigate A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied. The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and maneuvera ...

. The ship spent the bulk of her career on the

China Station The Commander-in-Chief, China, was the admiral in command of what was usually known as the China Station, at once both a British Royal Navy naval formation and its admiral in command. It was created in 1865 and deactivated in 1941. From 1831 to 1 ...

and served as

flagship A flagship is a vessel used by the commanding officer of a group of navy, naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically ...

there for a time. Upon her return to Great Britain in 1872 her hull was found to be partly rotten and she was placed in

reserve Reserve or reserves may refer to: Places * Reserve, Kansas, a US city * Reserve, Louisiana, a census-designated place in St. John the Baptist Parish * Reserve, Montana, a census-designated place in Sheridan County * Reserve, New Mexico, a US v ...

until she was sold for

scrap Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap can have monetary value, especially recover ...

in 1882.

Design and description

HMS ''Ocean'' was

long between perpendiculars Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the stern ...

and had a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Radio beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially lo ...

of . The ship had a draught of forward and aft. She displaced .Ballard, p. 241 ''Ocean'' had a

metacentric height The metacentric height (GM) is a measurement of the initial static stability of a floating body. It is calculated as the distance between the centre of gravity of a ship and its '' metacentre''. A larger metacentric height implies greater initial ...

of which meant that she rolled a lot and was an unsteady gun platform. Her hull was sheathed with

Muntz metal Muntz metal (also known as yellow metal) is an alpha-beta brass alloy composed of approximately 60% copper, 40% zinc and a trace of iron. It is named after George Fredrick Muntz, a metal-roller of Birmingham, England, who commercialised the al ...

to reduce

biofouling Biofouling or biological fouling is the accumulation of microorganisms, plants, algae, or small animals where it is not wanted on surfaces such as ship and submarine hulls, devices such as water inlets, pipework, grates, ponds, and rivers that ...

. Her crew consisted of 605 officers and ratings.

Propulsion

''Ocean'' had a simple horizontal 2-cylinder horizontal return connecting-rod steam engine driving a single propeller shaft using steam provided by eight rectangular

boiler A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, centra ...

s. The engine produced during the ship's

sea trial A sea trial or trial trip is the testing phase of a watercraft (including boats, ships, and submarines). It is also referred to as a "shakedown cruise" by many naval personnel. It is usually the last phase of construction and takes place on op ...

s in June 1864 which gave the ship a maximum speed of . ''Ocean'' carried a maximum of of coal, enough to steam at . She was

barque A barque, barc, or bark is a type of sailing ship, sailing vessel with three or more mast (sailing), masts of which the fore mast, mainmast, and any additional masts are Square rig, rigged square, and only the aftmost mast (mizzen in three-maste ...

-rigged with three masts and had a sail area of . Her best speed with the propeller disconnected and under sail alone was .

Yard The yard (symbol: yd) is an English units, English unit of length in both the British imperial units, imperial and US United States customary units, customary systems of measurement equalling 3 foot (unit), feet or 36 inches. Sinc ...

s were added to the ship's

mizzenmast The mast of a sailing vessel is a tall spar, or arrangement of spars, erected more or less vertically on the median line of a ship or boat. Its purposes include carrying sail A sail is a tensile structure, which is made from fabric or oth ...

by 1866 and ''Ocean'' was given a full

ship rig A full-rigged ship or fully rigged ship is a sailing ship, sailing vessel with a sail plan of three or more mast (sailing), masts, all of them square rig, square-rigged. Such a vessel is said to have a ship rig or be ship-rigged, with each mas ...

which she retained for the rest of her career.

Armament

''Ocean'' was initially armed with twenty-four rifled muzzle-loading guns. Four of these guns were mounted on the upper deck as

chase gun A chase gun (or chaser), usually distinguished as bow chaser and stern chaser, was a cannon mounted in the bow (aiming forward) or stern (aiming backward) of a sailing ship. They were used to attempt to slow down an enemy ship either chasing (p ...

s, two each fore and aft. The 16-

calibre In guns, particularly firearms, but not artillery, where a different definition may apply, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel bore – regardless of how or wher ...

seven-inch gun weighed and fired a shell. It was credited with the ability to penetrate of armour.Gardiner, p. 6 In 1867 four of these guns were replaced by rifled muzzle-loaders.Parkes, p. 55 The shell of the 15-calibre eight-inch gun weighed while the gun itself weighed . It had a

muzzle velocity Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/ shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately t ...

of and was credited with the ability to penetrate of

wrought iron Wrought iron is an iron alloy with a very low carbon content (less than 0.05%) in contrast to that of cast iron (2.1% to 4.5%), or 0.25 for low carbon "mild" steel. Wrought iron is manufactured by heating and melting high carbon cast iron in an ...

armour at the muzzle.

Armour

The entire side of the ''Prince Consort''-class ships, from the upper-deck level downwards, was protected by

armour that tapered from amidships to at the ends. The armour extended below the

waterline The waterline is the line where the hull of a ship meets the surface of the water. A waterline can also refer to any line on a ship's hull that is parallel to the water's surface when the ship is afloat in a level trimmed position. Hence, wate ...

. One small

conning tower A conning tower is a raised platform on a ship or submarine, often armoured, from which an officer in charge can conn (nautical), conn (conduct or control) the vessel, controlling movements of the ship by giving orders to those responsible for t ...

was fitted on each side of the upper deck amidships, but these proved to be untenable when the ship's guns were fired. The armour was backed by the sides of the ship which were thick.

Service history

HMS ''Ocean'' was laid down on 23 August 1860 as a wooden two-deck, 90-gun ship of the line by Devonport Dockyard. The Admiralty ordered on 5 June 1861Ballard, p. 240 that she be lengthened , cut down one deck, and converted to an armoured frigate for the price of £298,851. The ship was launched on 19 March 1863 and commissioned in July 1866, but was not completed until 6 September 1866. ''Ocean'' initially served with the Channel Fleet, but she was almost immediately transferred to the Mediterranean, and from there to the Far East; she arrived in Batavia (now Jakarta) on 15 October 1867. She was the only armoured ship ever to double the

Cape of Good Hope The Cape of Good Hope ( ) is a rocky headland on the Atlantic Ocean, Atlantic coast of the Cape Peninsula in South Africa. A List of common misconceptions#Geography, common misconception is that the Cape of Good Hope is the southern tip of Afri ...

under canvas alone.Ballard, p. 125 During this voyage ''Ocean'' set a record in having sailed on 26 August 1867 with cold boilers, the greatest distance ever covered under sail power by a British ironclad. ''Ocean'' served on the China Station for five years, 1867–1872, without docking once. The ship relieved the old two-decker as station flagship in 1869 when

Vice-Admiral Vice admiral is a senior naval flag officer rank, usually equivalent to lieutenant general and air marshal. A vice admiral is typically senior to a rear admiral and junior to an admiral. Australia In the Royal Australian Navy, the rank of vic ...

Henry Kellett Vice Admiral Sir Henry Kellett, (2 November 1806 – 1 March 1875) was an Irish naval officer and explorer. Career Born at Clonacody in Tipperary County, Ireland, on 2 November 1806, Kellett joined the Royal Navy in 1822. He spent three years ...

took command; a new crew was carried out by and

Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...

William Hewett Vice-Admiral Sir William Nathan Wrighte Hewett, (12 August 1834 – 13 May 1888) was a Royal Navy officer and a recipient of the Victoria Cross, the highest award for gallantry in the face of the enemy that can be awarded to British and Commonw ...

, VC assumed command of the ship. In 1871, ''Ocean'' ran down and sunk a large

Chinese Chinese may refer to: * Something related to China * Chinese people, people identified with China, through nationality, citizenship, and/or ethnicity **Han Chinese, East Asian ethnic group native to China. **'' Zhonghua minzu'', the supra-ethnic ...

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Amoy Xiamen,), also known as Amoy ( ; from the Zhangzhou Hokkien pronunciation, zh, c=, s=, t=, p=, poj=Ē͘-mûi, historically romanized as Amoy, is a sub-provincial city in southeastern Fujian, People's Republic of China, beside the Taiwan Stra ...

. ''Ocean'' was relieved in turn by in 1872, but drew too much water to pass through the

Suez Canal The Suez Canal (; , ') is an artificial sea-level waterway in Egypt, Indo-Mediterranean, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia (and by extension, the Sinai Peninsula from the rest ...

. The Admiralty therefore ordered that she return home via the Cape of Good Hope using steam. The ship's bottom was very foul and she averaged only 4.5 knots (8.3 km/h) during the voyage. ''Ocean'' had lost a lot of sheathing during her time in the Far East and much of her planking was in a bad state. The ship was therefore relegated to dockyard reserve until sold in 1882, to Castle's for breaking up at Charlton. Her stern decoration was sent to

Millbank Millbank is an area of central London in the City of Westminster. Millbank is located by the River Thames, east of Pimlico and south of Westminster. Millbank is known as the location of major government offices, Burberry headquarters, the Mill ...

, London, to decorate Castle's yard entrance.

Footnotes

References

* * * * {{DEFAULTSORT:Ocean (1862) Bulwark-class battleships (1859) Prince Consort-class ironclads Ships built in Plymouth, Devon 1863 ships Victorian-era battleships of the United Kingdom