The ''Ariel''-class gunboat was a class of nine 4-gun composite gunboats built for the

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against ...

between 1871 and 1873. Although most were sold by 1890, one of them survived into the 1920s as a salvage vessel in private ownership. They were the first class of Royal Navy gunboat built of composite construction, that is, with iron keel, stem and stern posts, and iron framing, but planked with wood.

Design and construction

Chief Constructor The Director of Naval Construction (DNC) also known as the Department of the Director of Naval Construction and Directorate of Naval Construction and originally known as the Chief Constructor of the Navy was a senior principal civil officer resp ...

of the Royal Navy, the ''Ariel''-class gunboats were the first Royal Navy gunboats of composite construction.Preston (2007) p. 160 They were some of the first vessels to be fitted with compound-expansion engines, allowing the Royal Navy to experiment with new engine designs at little risk in small, cheap vessels.''Swinger'', uniquely in the class, was engined by Humphrys, Tennant & Co. with a horizontal single-expansion steam engine. These engines were rated 60

nominal horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the ...

(an

indicated horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the ...

of between and ). They were armed with two 64-pounder (56cwt) muzzle-loading rifles and two 20-pounder Armstrong breech loaders. All 4 guns were mounted on traversing carriages. Some of the class were re-armed in the 1880s with two 5-inch and two 4-inch breech loaders. All the ships of the class carried a three-masted

barquentine A barquentine or schooner barque (alternatively "barkentine" or "schooner bark") is a sailing vessel with three or more masts; with a square rigged foremast and fore-and-aft rigged main, mizzen and any other masts. Modern barquentine sailing ...

Design and construction

Ships

Notes

References

Publications