A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war. The modern types of ships below a corvette are coastal patrol craft, missile boat and fast attack craft. In modern terms, a corvette is typically between 500 tons and 2,000 tons, although recent designs may approach 3,000 tons, which might instead be considered a small frigate.
The Riga class was the NATO reporting name for class of frigates built for the Soviet Navy in the 1950s. The Soviet designation for these ships was Storozhevoi KorablProject 50 Gornostay. The Riga class was analogous to World War II era destroyer escorts.
The Petya class was the NATO reporting name for a class of light frigates designed in the 1950s and built for the Soviet Navy in the 1960s. The Soviet designation was "Storozhevoi Korabl`" Project 159.
Project 122bis submarine chasers were a Soviet design which were exported throughout the communist bloc in the 1950s. The first ship, BO-270, was built at Zelenodolsk in 1945-1947 and a total of 227 were built for Soviet Navy (175) and border guard until 1955. As well as this, twenty Project 357 despatch vessels were built on the same hull, but were lightly armed.
USS Morgan County (LST-1048) was an LST-542-class tank landing ship built for the United States Navy in World War II. Like most ships of her class, she was originally known only by her designation, USS LST-1048, and, like all remaining LSTs, was named on 1 July 1955, after eleven counties in the U.S.
USS Calaveras County (LST-516) was an LST-491-class tank landing ship built for the United States Navy during World War II. Named for Calaveras County, California, she was the only U.S. Naval vessel to bear the name.
USS Chesterfield County (LST-551), originally USS LST-551, was an LST-542-class tank landing ship built for the United States Navy during World War II and in commission from 1944 to 1955 and again in the late 1960s. Named after Chesterfield County, South Carolina, and Chesterfield County, Virginia, she has been the only U.S. Navy vessel to bear the name.
USS Chittenden County (LST-561), originally USS LST-561, was an LST-542-class tank landing ship built for the United States Navy during World War II. Later named for Chittenden County, Vermont, she was the only U.S. Naval vessel to bear the name.
USS Churchill County (LST-583), originally USS LST-583, was an LST-542-class tank landing ship built for the United States Navy during World War II and in commission from 1944 to 1946 and 1960 to 1968. Named for Churchill County, Nevada she was the only U.S. Navy vessel to bear the name.
USS Clarke County (LST-601), originally USS LST-601, was a United States Navy LST-542-class tank landing ship built during World War II and in commission from 1944 to 1955 and again in the late 1960s. Named after Clarke County, Alabama; Clarke County, Georgia; Clarke County, Iowa; Clarke County, Mississippi; and Clarke County, Virginia, she was the only U.S. Navy vessel to bear the name.
USS Coconino County (LST-603), originally USS LST-603, was a United States Navy LST-542-class tank landing ship built for the United States Navy during World War II and in commission from 1944 to 1955 and from 1966 to 1969. Named after Coconino County, Arizona, she was the only U.S. Navy vessel to bear the name.
USS Dodge County (LST-722) was an LST-542 class Landing Ship Tank, built for the United States Navy during World War II. She was renamed USS Dodge County on the first of July 1955, for counties in Georgia, Minnesota, Nebraska, and Wisconsin, and was the only United States Navy vessel to bear the name.
The second USS Swan was a US Navy YMS-1-class minesweeper in commission from 1944 to 1946, and again from 1950 to 1955. She was laid down on 12 August 1943 by the Gibbs Gas Engine Co., at Jacksonville, Florida, as Patrol Craft, Sweeper, PCS-1438; and was redesignated Auxiliary Motor Minesweeper YMS-470, on 27 September 1943. Launched on 5 April 1944; the ship was completed and commissioned on 14 October 1944.
USS Dukes County (LST-735) was an LST-542-class tank landing ship built for the United States Navy during World War II. Named after Dukes County, Massachusetts, she was the only U.S. Naval vessel to bear the name. In 1957 she was decommissioned and leased to the Republic of China. In 1962 she was commissioned into Republic of China Navy service.
USS Dunn County (LST-742) was an LST-542-class tank landing ship built for the United States Navy during World War II. Named after counties in North Dakota and Wisconsin, she was the only U.S. Naval vessel to bear the name.
USS Esmeraldo County (LST-761) was an LST-542-class tank landing ship built for the United States Navy during World War II. Named after an erroneous spelling of Esmeralda County, Nevada, she was the only U.S. Naval vessel to bear the name.
USS Instill (AM-252) was an Admirable-class minesweeper built for the United States Navy during World War II. She saw service in the Atlantic during World War II. She was decommissioned in February 1947 and placed in reserve. Instill was recommissioned in March 1951 during the Korean War and remained in commission until March 1954, when she was placed in reserve again. While she remained in reserve, Instill was reclassified as MSF-252 in February 1955 but never reactivated. In October 1962, she was sold to the Mexican Navy and renamed ARM DM-10. She was stricken from Mexican Navy service in 1986, but her ultimate fate is not reported in secondary sources.
USS LST-1075 was an LST-542-class tank landing ship in the United States Navy. Like many of her class, she was not named and is properly referred to by her hull designation.
United States Navy 
Royal Australian Navy