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 Visby class is a series of corvettes in use by the Swedish Navy. It is the latest class of corvette adopted by the navy after the Göteborg and Stockholm-class corvettes. Its design emphasizes low visibility radar cross-section and infrared signature, and the class has received widespread international attention because of its capabilities as a stealth ship. The first ship in the class is named after Visby, the main city on the island of Gotland.
An attack submarine or hunter-killer submarine is a submarine specifically designed for the purpose of attacking and sinking other submarines, surface combatants and merchant vessels. In the Soviet and Russian navies they were and are called "multi-purpose submarines". They are also used to protect friendly surface combatants and missile submarines. Some attack subs are also armed with cruise missiles, increasing the scope of their potential missions to include land targets.
The Hellenic Navy is the naval force of Greece, part of the Hellenic Armed Forces. The modern Greek navy historically hails from the naval forces of various Aegean Islands, which fought in the Greek War of Independence. During the periods of monarchy it was known as the Royal Hellenic Navy.
The Maestrale class is a class of frigates of the Italian Navy. The class is composed of eight vessels, all of which were built by Fincantieri S.p.A., Riva Trigoso, except for Grecale, which was built by Fincantieri S.p.A. – Muggiano, La Spezia.
The Republic of China Navy is the maritime branch of the Republic of China Armed Forces (ROCAF).
The D'Estienne d'Orves-class avisos, also known as the A69 type avisos, is a class of French Navy avisos, comparable in size to a light corvette, mainly designed for coastal anti-submarine defence, but are also available for high sea escort missions, notably in support missions with the Strategic Oceanic Force (FOST). Built on a simple and robust design, they have an economical and reliable propulsion system which allows them to be used for overseas presence missions. In addition to service in France, they have been ordered by the South African Navy, Argentinian Navy and Turkish Navy.
HSwMS Gotland (Gtd) is a defense submarine of the Swedish Navy. It was the first ship of the Gotland-class, which was the first operational submarine class in the world to use air-independent propulsion in the form of Stirling engines which use liquid oxygen and diesel as the propellant.
The Udaloy class, Soviet designation Project 1155 Fregat and Russian designation Project 11551 Fregat-M, are series of anti-submarine guided-missile destroyers built for the Soviet Navy, seven of which are currently in service with the Russian Navy. Twelve ships were built between 1980 and 1990, while the thirteenth ship built to a modified design, known as Udaloy II class, followed in 1999. They complement the Sovremenny-class destroyers in anti-aircraft and anti-surface warfare operations. The codename Udaloy comes from a Russian adjective удалой, meaning daring or bold.
The Gotland-class submarines of the Swedish Navy are modern diesel-electric submarines, which were designed and built by the Kockums shipyard in Sweden. They are the first submarines in the world to feature a Stirling engine air-independent propulsion (AIP) system, which extends their underwater endurance from a few days to weeks. This capability had previously only been available with nuclear-powered submarines.
The RBS 15 is a long-range fire-and-forget surface-to-surface and air-to-surface anti-ship missile. The later version Mk. IV has the ability to attack land targets as well. The missile was developed by the Swedish company Saab Bofors Dynamics.
The Type 037 corvette is a series 400–500 ton corvette type classes in service with the People's Liberation Army Navy. Unlike western navies, the People's Liberation Army Navy does not have dedicated patrol boats in its inventory. Instead, a large variety of corvette type classes, in the form of missile boats and submarine chasers fulfill the tasks of patrolling China's territorial waters. The Egyptian Navy operates eight vessels.
The Göteborg class is a class of corvettes in the Swedish Navy, built between 1986 and 1993. The class was originally designed to destroy Soviet submarines and surface vessels, and is armed with eight RBS-15 anti-ship missiles, torpedoes, one 57 mm cannon, and one 40 mm cannon.
The Stockholm class is a pair of warships of the Swedish Navy. Built as corvettes in Karlskrona 1984–1985, they are armed with four RBS15 anti-ship missiles, one 57 mm cannon and several machine guns. In 2017 the two units in the class were rebuilt and are now serving as patrol boats. The option to carry anti-ship missiles does however remain.
The Stenka class is the NATO reporting name for a class of patrol boats built for the Soviet Navy, KGB Border Troops and Soviet Allies. The Soviet designation was Project 205P Tarantul. The boats are an anti-submarine patrol version of the Osa-class missile boat.
The Pacific Fleet is the Russian Navy fleet in the Pacific Ocean. Established in 1731 as part of the Imperial Russian Navy, the fleet was known as the Okhotsk Military Flotilla (1731–1856) and Siberian Military Flotilla (1856–1918), formed to defend Russian interests in the Russian Far East region along the Pacific coast. In 1918 the fleet was inherited by the Russian Soviet Federative Socialist Republic, then the Soviet Union in 1922 as part of the Soviet Navy, being reformed several times before being disbanded in 1926. In 1932 it was re-established as the Pacific Fleet, and was known as the Red Banner Pacific Fleet after World War II as it had earned the Order of the Red Banner. In the Soviet years, the fleet was also responsible for the Soviet Navy's operations in the Indian Ocean and Arabian Sea. Following the collapse of the Soviet Union in 1991, the Red Banner Pacific Fleet was inherited by the Russian Federation as part of the Russian Navy and its current name was adopted.
HSwMS Västergötland (Vgd) was the lead ship of the Västergötland-class submarines, named after Västergötland, Sweden. The submarine was launched on 19 July 1986 and entered service with the Swedish Navy on 20 October 1988. Västergötland served with the Swedish Navy until 1997 when the submarine was decommissioned. In 2005 Västergötland and sister boat HSwMS Hälsingland were sold to Singapore, where Västergötland was renamed RSS Swordsman and entered service on 30 April 2013.
HSwMS Hälsingland (Hgd), was the second submarine of the Västergötland class. The vessel was named after Hälsingland, Sweden. The submarine was launched on 31 August 1987 and entered service with the Swedish Navy on 20 October 1988. Hälsingland served with the Swedish Navy until 1997 when the submarine was decommissioned. In 2005 Hälsingland and sister boat HSwMS Västergötland were sold to Singapore, where Hälsingland was renamed RSS Archer and entered service on 2 December 2011. Archer remains in service.
HSwMS Gävle (K22) is a Swedish Navy Göteborg-class corvette, named after the Swedish city of Gävle.
Swedish Navy 
