A frigate is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied.
USS Pennsylvania was a three-decked ship of the line of the United States Navy, rated at 130 guns, and named for the state of Pennsylvania. She was the largest United States sailing warship ever built, the equivalent of a first-rate of the British Royal Navy. Authorized in 1816 and launched in 1837, her only cruise was a single trip from Delaware Bay through Chesapeake Bay to the Norfolk Navy Yard. The ship became a receiving ship, and during the American Civil War was destroyed.
An ironclad was a steam-propelled warship protected by steel or iron armor 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 preempting the British Royal Navy. However, Britain built the first completely iron-hulled warships.
During the 18th and 19th centuries, a sloop-of-war was a warship of the British Royal Navy with a single gun deck that carried up to 18 guns. The rating system of the Royal Navy covered all vessels with 20 or more guns; thus, the term encompassed all unrated warships, including gun-brigs and cutters. In technical terms, even the more specialised bomb vessels and fire ships were classed by the Royal Navy as sloops-of-war, and in practice these were employed in the role of a sloop-of-war when not carrying out their specialised functions.
Steam frigates 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 screw-powered versions of the traditional frigates, corvettes, sloops and gunboats.
USS Merrimack, also improperly Merrimac, was a steam frigate, best known as the hull upon which the ironclad warship CSS Virginia was constructed during the American Civil War. The CSS Virginia then took part in the Battle of Hampton Roads in the first engagement between ironclad warships.
USS Roanoke was a wooden-hulled Merrimack-class screw frigate built for the United States Navy in the mid-1850s. She served as flagship of the Home Squadron in the late 1850s and captured several Confederate ships after the start of the American Civil War in 1861. The ship was converted into an ironclad monitor during 1862–63; the first ship with more than two gun turrets in history. Her conversion was not very successful as she rolled excessively, and the weight of her armor and turrets strained her hull. Her deep draft meant that she could not operate off shallow Confederate ports and she was relegated to harbor defense at Hampton Roads, Virginia for the duration of the war. Roanoke was placed in reserve after the war and sold for scrap in 1883.
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 Pelican was an Osprey-class sloop built for the Royal Navy in the mid-1870s. She was launched in 1877 and was sold to the Hudson's Bay Company in 1901. She was scuttled in 1953.
United States
