HSwMS Sjölejonet was the lead ship of a class of nine naval submarines in the service of the Swedish Navy from just before World War II into the early Cold War. The submarines were ordered in response to the rising German threat to the south in the interwar period. Sjölejonet remained in service until 1959 and was sold for scrap in 1962.
The Hurja-class motor torpedo boats or H class was an Italian-designed class of Finnish motor torpedo boats, seeing service with the Finnish Navy during World War II. The five boats of the H class were built by Cantieri Baglietto in Genoa, Italy. The ships were converted into patrol boats in 1949, in accordance with the Paris peace treaty and their torpedo armament, forbidden by the treaty, was removed. The H class were stricken from the naval vessel register in 1963.
The Jymy-class motor torpedo boats or J class was an Italian-designed and built class of motor torpedo boats, seeing service during World War II with the Royal Italian Navy and later with the Finnish Navy. The four boats of the J class were built by Cantieri Baglietto in Genoa, Italy and purchased by the Finns on 5 June 1943. Following World War II, the vessels were rearmed according to the Paris Peace Treaty of 1947, losing their torpedo capabilities and given more guns. They were removed from service in 1961.
The Taisto-class motor torpedo boats or T class was a series of motor torpedo boats, which saw service with the Finnish Navy during World War II. Following the war, the Paris Peace Treaty of 1947 prohibited the Finnish Navy from employing torpedo-carrying vessels of any kind and the Taisto class were converted into motor gunboats. By 1964, all vessels of the class had been removed from service.
The Haven class of hospital ships were built for the United States Navy (USN) during World War II. Haven-class ships also served in the Korean War and the Vietnam War. They were among the first ships to be able to receive casualties directly by helicopter and were the first fully air conditioned ships in the USN. The first ship was laid down in July 1943, while the last was launched in August 1944. In that span the United States produced six Haven-class hospital ships. The last Haven-class ship was struck from the Naval Vessel Register in 1989. One ship sank in a collision in 1950; the five others were scrapped. Haven-class hospital ships were replaced with the Mercy-class hospital ships.
The Currituck-class seaplane tenders were four ships built for the United States Navy during World War II. The role of a seaplane tender was to provide base facilities for squadrons of seaplanes in a similar way that an aircraft carrier does for its squadrons. While three members of the class were removed from active service in the 1960s, Norton Sound was modified to serve as a testbed for advanced radar and combat management systems, such as the Aegis Combat System.
The Ashland-class dock landing ship were the first class of dock landing ship of the United States Navy. They were built during World War II. A dock landing ship is a form of auxiliary warship designed to support amphibious operations. Eight ships were built for the United States Navy and they remained in US service until the 1960s. Two of the class were sold for export overseas, with one joining the Republic of China Navy and the other the Argentinian Navy. The two transferred ships stayed in service until the 1980s. All eight ships were scrapped.
The Mendoza class were a series of three destroyers built in the United Kingdom for the Argentine Navy in the 1920s. They were the first part of the Argentine re-armament programme of the 1920s. Construction began in 1927 and all three were commissioned in 1929. All three destroyers were converted to anti-aircraft escorts in 1958 and remained in service until 1962 when they were discarded.
BAP Abtao (SS-42) is an Abtao-class submarine of the Peruvian Navy. The vessel which was originally named BAP Tiburón ("Shark"), was constructed by the American Electric Boat company in the United States and launched in 1953. The Abtao class were the last submarines constructed by the United States for the export market. The submarine entered service in 1954 and by presidential decree, was renamed Abtao for the battle during the Chincha Islands War.
The Abtao class were four submarines of the Peruvian Navy that entered service between 1954 and 1957. They are also known as the Lobo class and the Dos de Mayo class and were constructed in the United States to a design based upon the United States Navy's Mackerel class. They were the last submarines to be constructed by the United States for the export market. All four submarines were powered by a diesel-electric system and armed with six 21-inch (533 mm) torpedo tubes. Two of the submarines also mounted a 5 in (127 mm)/25 caliber gun. The four submarines, initially named for animals, were all renamed in 1957 for famous Peruvian battles. Beginning in 1991, the submarines were taken out of service, with the last decommissioned in 1999. One, BAP Abtao, is a museum ship located in Lima, Peru.
NRP Gonçalo Velho was a second class Gonçalo Velho-class sloop of the Portuguese Navy. She was designed to operate in the overseas territories of Portugal. The ship entered service in 1933 and was among the core of the fleet until the late 1940s. Following World War II, new ships were acquired and Gonçalo Velho was broken up for scrap in 1961.
The Admiral Pereira da Silva class of frigates, also known as Admiral-class frigates, were in the service of the Portuguese Navy between 1966 and 1985. The class was based on the Dealey-class destroyer escort of the United States Navy. The three ships of the class were built in Portugal, at the Lisnave shipyards and the shipyards of Viana do Castelo. The construction of the ships was part of the effort of Portugal to expand its fleet in the face of unrest in the empire and was financed by the United States via the Mutual Defense Assistance Program. Financial problems prevented them from ever being modernised and they were deleted in 1989.
The Audaz class was a class of nine destroyers built for the Spanish Navy after the Second World War. Construction was slow, with only four completed to the original design from 1953–1956. The remaining five ships completed as anti-submarine escorts with a new armament and sensor fit from 1960 to 1965, while the original four ships were also modified to this standard. Built at Ferrol, they completed in 1946–1950 and were rated as gunboats, and were redesignated as frigates in 1959. The last of the class, Intrepido, was stricken in 1982.
The Atrevida class was a class of six corvettes built for the Spanish Navy in the 1950s.
CNAV Eastore was a coastal auxiliary ship in service with the Royal Canadian Navy during World War II and the Cold War. Eastore, originally constructed as the United States Army Design 381 freighter FS-554, was acquired in 1944 and entered service with the Royal Canadian Navy in December of that year. The ship was paid off on 8 April 1946 and re-entered service as a naval auxiliary (CNAV). The ship remained in service with the Royal Canadian Navy until sold on 30 July 1964.
CNAV Laymore was an auxiliary vessel of the Royal Canadian Navy and the Canadian Forces during World War II and the Cold War, converted to an oceanographic research vessel in 1966. The vessel was commissioned in 1945 as HMCS Laymore and served on the east coast of Canada. In 1946, the vessel was paid off and redesignated an naval auxiliary, given the prefix "CNAV" and transferred to the west coast. Laymore was taken out of service in 1977 and sold to private interests. Renamed Chilcotin Princess, the ship was used as a small coastal cargo vessel servicing smaller ports along the British Columbia Coast. In 1998, Chilcotin Princess was sold for use as a helicopter pad by the logging industry in British Columbia. The vessel was then brought to Namu, British Columbia, where Chilcotin Princess was left unattended.
Audaz was a Spanish destroyer of the class of the same name that was built after the Second World War. Audaz was launched in 1951 and completed in 1953. The ship was modified to an anti-submarine escort in the 1960s, and was stricken in 1974.
HSwMS Karlskrona was a destroyer of the Royal Swedish Navy that served during the Second World War and in the Cold War. The fourth member of the Göteborg or city class, which was designed as an improvement on the previous Ehrensköld class, Karlskrona was launched on 16 June 1939. The destroyer served in the Coastal Fleet during the war, protecting Swedish neutrality and escorting convoys. After the war, the ship was upgraded between 1950 and 1951 with enhanced fire control and an armament improved with the introduction of the Bofors 40 mm anti-aircraft gun. Ten years later, in 1961, Karlskrona was designated a fast anti-submarine frigate and the torpedo tubes were replaced by Squid mortars. The vessel was decommissioned on 1 July 1974 and broken up in 1979.
HSwMS Gävle was a destroyer of the Royal Swedish Navy that served during the Second World War and in the Cold War. The fifth member of the Göteborg or city class, which was designed as an improvement on the previous Ehrensköld class, Gävle was launched on 25 September 1940. The destroyer served in the Coastal Fleet during the war, protecting Swedish neutrality and assisting in the 1944 evacuation of Estonia. After the conflict had ceased, the ship was upgraded with enhanced fire control and an armament improved with the introduction of the Bofors 40 mm anti-aircraft gun between 1950 and 1951. Ten years later, in 1961, Gävle was rearmed as a fast anti-submarine frigate and the torpedo tubes were replaced by Squid mortars. After being decommissioned on 6 December 1968, the vessel helped in the testing of the equipment for the Oskarshamn Nuclear Power Plant, finally being broken up in 1972.
HSwMS Malmö was a destroyer of the Royal Swedish Navy that served during the Second World War and in the Cold War. The ghird member of the Göteborg or City class, an improvement on the previous Ehrensköld class, Malmö was launched on 22 September 1938. The destroyer served during the war on neutrality patrols and escorts, as well as the evacuation of Gotland in 1941. After the war, the ship was upgraded multiple times. Armament was improved with the introduction of the Bofors 40 mm anti-aircraft gun in 1951 and the Squid mortar ten years later. The latter followed the redefinition of Malmö as an anti-submarine frigate. The ship served in that role for a short time, being decommissioned on 1 February 1965 and broken up as the part of a wider Swedish naval programme of retiring destroyers and frigates.
United States Navy 