A frigate is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied greatly.
A ship of the line was a type of naval warship constructed during the Age of Sail from the 17th century to the mid-19th century. The ship of the line was designed for the naval tactic known as the line of battle, which depended on the two columns of opposing warships maneuvering to volley fire with the cannons along their broadsides. In conflicts where opposing ships were both able to fire from their broadsides, the opponent with more cannons firing — and therefore more firepower — typically had an advantage. Since these engagements were almost invariably won by the heaviest ships carrying more of the most powerful guns, the natural progression was to build sailing vessels that were the largest and most powerful of their time.
An ironclad is a steam-propelled warship protected by iron or steel armor plates, constructed from 1859 to the early 1890s. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, Gloire, was launched by the French Navy in November 1859 - narrowly pre-empting the British Royal Navy. After the first clashes of ironclads took place in 1862 during the American Civil War, it became clear that the ironclad had replaced the unarmored ship of the line as the most powerful warship afloat. This type of ship came to be very successful in the American Civil War.
In the 18th century and most of the 19th, a sloop-of-war in the Royal Navy was a warship with a single gun deck that carried up to eighteen guns. The rating system covered all vessels with 20 guns and above; thus, the term sloop-of-war encompassed all the unrated combat vessels, including the very small gun-brigs and cutters. In technical terms, even the more specialised bomb vessels and fireships were classed as sloops-of-war, and in practice these were employed in the sloop role when not carrying out their specialised functions.
Steam frigates, the larger steam ships of the line and the smaller steam corvettes, steam sloops, steam gunboats and steam schooners, were steam-powered warships that were not meant to stand in the line of battle. The first such ships were paddle steamers. Later on the invention of screw propulsion enabled construction of steam-powered versions of the traditional ships of the line, frigates, corvettes, sloops and gunboats.
The first USS Pensacola was a screw steamer that served in the United States Navy during the U.S. Civil War.
USS Contoocook was a screw sloop-of-war built for the United States Navy during the American Civil War. She is named after a river and village in New Hampshire. She was launched 3 December 1864 at Portsmouth Navy Yard and commissioned 14 March 1868, commanded by Captain George Balch.
HMS Research was a small ironclad warship, converted from a wooden-hulled sloop and intended as an experimental platform in which to try out new concepts in armament and in armour. She was launched in 1863, laid up in 1878 and sold for breaking in 1884, having displayed serious limitations as a warship.
The French ironclad Couronne ("Crown") was the first iron-hulled ironclad warship built for the French Navy in 1859–1862. She was the first such ship to be laid down, although the British armoured frigate HMS Warrior was completed first. The ship participated in the Franco-Prussian War of 1870–1871, but saw no combat. She was served as a gunnery training ship from 1885 to 1908 before she was hulked the following year and became a barracks ship in Toulon. Couronne was scrapped in 1934, over 70 years after she was completed.
Demologos was the first warship to be propelled by a steam engine. She was a wooden floating battery built to defend New York Harbor from the Royal Navy during the War of 1812. The vessel was designed to a unique pattern by Robert Fulton, and was renamed Fulton after his death. Because of the prompt end of the war, Demologos never saw action, and no other ship like her was built.
Katsuragi (葛城) was the lead ship in the Katsuragi class of three composite hulled, sail-and-steam corvettes of the early Imperial Japanese Navy. The ship was named for a mountain located between Osaka and Nara prefectures.
Jorge Juan was a Jorge Juan-class sloop of the Spanish Navy which was sunk off Cuba during the Spanish–American War.
The Eclipse class was a class of seven 6-gun wooden screw sloops built for the Royal Navy between 1867 and 1870. They were re-armed and re-classified as 12-gun corvettes in 1876. Two further vessels were proposed but never ordered.
USS Watauga was a proposed United States Navy screw frigate that was never built.
USS Arapahoe was a proposed United States Navy screw sloop-of-war or steam frigate that was cancelled in 1866 without being completed.
USS Keosauqua was a proposed United States Navy screw sloop-of-war or steam frigate that was cancelled in 1866 without being completed.
USS Willamette was a proposed United States Navy screw sloop-of-war or steam frigate that was cancelled in 1866 without ever having been laid down.
HMS Bristol was the name ship of her class of wooden screw frigates built for the Royal Navy during the 1860s.
Aréthuse was an unprotected cruiser built for the French Navy. The ship was laid down in 1879 and completed in 1885. Intended to serve as a long-range commerce raider, the ship was fitted with a sailing rig to supplement its steam engine on long voyages, and she carried an armament of four 165 mm (6.5 in) and twenty-two 140 mm (5.5 in) guns. She was among the final French unprotected cruisers, thereafter being replaced by more durable protected cruisers.
United States