HMS ''Samarang'' was a 28-gun,

teak Teak (''Tectona grandis'') is a tropical hardwood tree species in the family Lamiaceae. It is a large, deciduous tree that occurs in mixed hardwood forests. ''Tectona grandis'' has small, fragrant white flowers arranged in dense clusters (panic ...

sixth rate In the rating system of the Royal Navy used to categorise sailing warships, a sixth-rate was the designation for small warships mounting between 20 and 28 carriage-mounted guns on a single deck, sometimes with smaller guns on the upper works an ...

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 ...

. She was launched at

Cochin Kochi ( , ), formerly known as Cochin ( ), is a major port city along the Malabar Coast of India bordering the Laccadive Sea. It is part of the district of Ernakulam in the state of Kerala. The city is also commonly referred to as Ernaku ...

in 1822 by the

East India Company The East India Company (EIC) was an English, and later British, joint-stock company that was founded in 1600 and dissolved in 1874. It was formed to Indian Ocean trade, trade in the Indian Ocean region, initially with the East Indies (South A ...

. The first application of

cathodic protection Cathodic protection (CP; ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded " sacrifi ...

was to HMS ''Samarang'' in 1824.

Sacrificial anode A galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection system used to protect buried or submerged metal structures from corrosion. They are made from a metal alloy with a more "active" voltage (more n ...

s made from

iron Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's o ...

attached to the

copper sheathing Copper sheathing is a method for protecting the hull of a wooden vessel from attack by shipworm, barnacles and other marine growth through the use of copper plates affixed to the surface of the hull, below the waterline. It was pioneered and d ...

of the hull below the waterline dramatically reduced the corrosion rate of the copper. However, a side effect of the cathodic protection was to increase

marine growth Biofouling or biological fouling is the accumulation of microorganism A microorganism, or microbe, is an organism of microscopic scale, microscopic size, which may exist in its unicellular organism, single-celled form or as a Colony (bio ...

. Copper, when corroding, releases copper ions which have an

anti-fouling 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 ...

effect. Since excess marine growth affected the performance of the ship, the

decided that it was better to allow the copper to corrode and have the benefit of reduced marine growth, so cathodic protection was not used further. ''Samarang'' served in various stations around the world until seeing action in the

First Opium War The First Opium War ( zh, t=第一次鴉片戰爭, p=Dìyīcì yāpiàn zhànzhēng), also known as the Anglo-Chinese War, was a series of military engagements fought between the British Empire and the Chinese Qing dynasty between 1839 and 1 ...

, and was then employed, under

Edward Belcher Sir Edward Belcher (27 February 1799 – 18 March 1877) was a British naval officer, hydrographer, and explorer. Born in Nova Scotia, he was the great-grandson of Jonathan Belcher, who served as a colonial governor of Massachusetts, New ...

, in surveying the coasts of the

East Indies The East Indies (or simply the Indies) is a term used in historical narratives of the Age of Discovery. The ''Indies'' broadly referred to various lands in Eastern world, the East or the Eastern Hemisphere, particularly the islands and mainl ...

and southern China from 1843 to 1846. On 17 July 1843, she struck a rock in the Sarawak river at

Kuching Kuching ( , ), officially the City of Kuching, is the capital and the most populous city in the States and federal territories of Malaysia, state of Sarawak in Malaysia. It is also the capital of Kuching Division. The city is on the Sarawak Ri ...

and

capsize Capsizing or keeling over occurs when a boat or ship is rolled on its side or further by wave action, instability or wind force beyond the angle of positive static stability or it is Turtling (sailing), upside down in the water. The act of reco ...

d, but her crew survived; she had been refloated by 13 August and was returned to service. English zoologist Arthur Adams, who was assistant surgeon on the ship for this voyage later edited ''Zoology of the voyage of H.M.S. Samarang'' (1850), an account of the survey. She later became a

guardship A guard ship is a warship assigned as a stationary guard in a port or harbour, as opposed to a coastal patrol boat, which serves its protective role at sea. Royal Navy In the Royal Navy of the eighteenth century, peacetime guard ships were usua ...

Gibraltar Gibraltar ( , ) is a British Overseas Territories, British Overseas Territory and British overseas cities, city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the A ...

before being sold for breaking in 1883.National Maritime Museum
/ref>

References

External links

* {{DEFAULTSORT:Samarang (1822) 1822 ships Atholl-class corvettes First Opium War ships of the United Kingdom Ships built in India Maritime incidents in July 1843