ARC 20 de Julio | |
History | |
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Colombia | |
Name | 20 de Julio |
Namesake | Veinte de Julio |
Builder | Eriksbergs Mekaniska Verkstads AB |
Laid down | October 1955 |
Launched | 26 June 1956 |
Commissioned | 15 June 1958 |
Decommissioned | 1984 |
Renamed | from Veinte de Julio |
Identification | Pennant number: D-05 |
Fate | Scrapped, 1986 |
General characteristics [1] [2] | |
Class and type | 20 de Julio-class destroyer |
Displacement |
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Length | 121 m (397 ft 0 in) |
Beam | 12.4 m (40 ft 8 in) |
Draft | 4.7 m (15 ft 5 in) |
Propulsion | 2 shaft geared turbines, 2 boilers, 55,000 hp (41,000 kW) |
Speed | 32 kn (59 km/h; 37 mph) |
Range |
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Complement | 248 |
Sensors and processing systems |
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Armament |
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ARC 20 de Julio (D-05) is one of the two Colombian Halland-class destroyer. She and ARC 7 de Agosto were the only ones built of their class. Two more ships were ordered but they were never completed. She had the previous name of Veinte de Julio prior to renaming.
20 de Julio was 121 meters long and 12.6 meters wide. The hull was designed with a forecastle and a long, continuous superstructure which made it possible for the crew to reach the entire ship without having to go outside, thus minimizing the risk of exposure to radioactive contamination. Unlike previous destroyer classes, whose superstructure was built of aluminum, the Halland-class was built of steel. Aluminum gave ships a lower weight but had the disadvantage that, it melted at a much lower temperature than steel in a shipboard fire. To keep the weight down therefore, corrugated galvanised iron was used in the superstructure.
The machinery consisted of steam boilers and steam turbines. Two Penhoët boilers delivered steam with a pressure of 40 bar and the temperature of 420 degrees to two de Laval turbines. The effect was a total of 58,000 horsepower, which gave the ship a maximum speed of 35 knots (65 km/h). [3]
The main armament consisted of three fully automatic double Bofors 120 mm gun model 1950 which were initially directed from a central sight which was later replaced by a new artillery radar sight connected to the radar. The secondary armament consisted of four single Bofors 40 mm L/70. The former was initially controlled from a central sight on the bridge and later by a digital fire control housed in the characteristic radome over the bridge deck. The torpedo armament consisted of two quadruple sets with a total of eight torpedo tubes. Regarding anti-submarine warfare, there was a sonar housed in a dome which could be retracted into the hull when not in use. When a submarine was discovered, four Bofors 375mm anti submarine rockets, each with a 100 kg charge and a range of 300 - 1,200 meters, could be fired in a pattern around, above and below the target from a trainable four-barrelled launcher.
20 de Julio was built at Eriksbergs Mekaniska Verkstad in Gothenburg and was launched on 26 June 1952 and delivered to the Colombian Navy on 15 June 1956.
During her 26 years of operational use the unit did not participate in any major actions, except for periodic exercises with US Navy ships. She was decommissioned in 1986 and later scrapped. [4]
HSwMS Ehrensköld (11), was the lead ship of her class of destroyer in the Swedish Navy during World War II. Together with the sister ship HSwMS Nordenskjöld (12), she constituted the Ehrensköld class, which, with its size and speed, was a major step in the Swedish destroyer fleet. Initially, Ehrensköld had pennant number 11, which was later changed to 1. In 1951-1952, the ship was converted to frigate, and then received the pennant number 71. She was decommissioned in 1963 and was sold for scrapping in 1973.
HSwMS Magne (30) was a Mode-class destroyer of the Swedish Navy during World War II. She was built at Götaverken and was launched on 25 April 1942 as the second ship of the Mode class. The ship was rebuilt in the mid-1950s and reclassified to frigate in 1953 when she received pennant number 74. Magne was scrapped in Ystad in 1973. The name comes from Magni, the son of Thor in Nordic mythology.
HSwMS Småland (J19) is a Swedish Halland-class destroyer. She and HSwMS Halland were the only ones built of their class. Two more ships were ordered but they were never completed.
HSwMS Sundsvall (J12) was a Swedish destroyer, later rebuilt as a frigate, in the four-ship Visby class. The ship was named after the Swedish coastal city of Sundsvall. Sundsvall was laid down in 1942 during the Second World War, and was commissioned on 17 September 1943. She survived the war, and was modified and redesigned as a frigate in 1965. She was kept in service by the Swedish Navy until 1982, and was then used for testing of the Navy's RBS-15 anti-ship missile. The ship was later sold to Spain for scrapping.
The Göteborg class was a Swedish World War II destroyer class. Built from 1936–1941 the class was designed as escort and neutral guard destroyers. In total six ships were constructed, HSwMS Göteborg, HSwMS Stockholm, HSwMS Malmö, HSwMS Karlskrona, HSwMS Gävle and HSwMS Norrköping. After World War II the destroyers, later rebuilt as frigates, continued to serve in the Swedish navy. The last ship was decommissioned in 1968.
The Mode class or Mjölner class was a class of four coastal destroyers commissioned by the Royal Swedish Navy during World War II. The design was based on the preceding Psilander class purchased from Italy but with Swedish equipment and armament. The destroyers served as coastal escorts. The class was moderately upgraded and reclassified as frigates during the early part of the Cold War. After nearly thirty years of service, the last vessel was retired in 1970.
HSwMS Mode was a coastal destroyer of the Royal Swedish Navy, built by Götaverken and launched on 11 April 1942 as the lead of the four ship Mode class. Developed from an Italian design, the ship was capable of a wide range of roles, with depth charges to defeat submarines, torpedo tubes to attack ships and anti-aircraft guns for aerial defence, as well as mine laying capability. After serving during World War II, the ship was updated with greater anti-submarine capability and reclassified a frigate in 1953. Decommissioned on 1 July 1970, Mode subsequently operated in a training role until being scrapped in 1978.
HSwMS Mjölner was a coastal destroyer of the Royal Swedish Navy, built by Eriksbergs Mekaniska Verkstad and launched on 9 April 1942 as the last of the four ship Mode class. After serving during World War II, the ship was updated and reclassified a frigate in 1953. Decommissioned in 1966, Mjölner was sold for scrap in 1969.
HSwMS Psilander (18) was a Psilander-class destroyer of the Swedish Navy from 1940 to 1947. The ship was purchased from Italy by Sweden in 1940, along with her sister ship HSwMS Puke. Before that, she served in the Regia Marina as Giovanni Nicotera, one of four members of the Italian Sella class. Psilander was scrapped in 1949.
HSwMS Nordenskjöld (12) was a destroyer in the Swedish Navy. Together with the sister ship HSwMS Ehrensköld, she constituted the Ehrensköld class, which, with its size and speed, was a major step in the Swedish destroyer fleet. The ship was launched on 19 June 1926. During the World War II, she participated in the neutrality watch and escorted merchant ships along the Swedish east coast. Especially the ore traffic from Luleå to Germany had to be protected. In the context of the neutrality watch, she therefore participated in the pursuit of Soviet submarines who broke out of the Gulf of Finland in search of merchant ships. Initially, Nordenskjöld had pennant number 12, which was later switched to 2. In 1951–1952, the ship was converted to frigate and then received the pennant number 72. She was decommissioned in 1963 and was sold for scrap the following year.
HSwMS Halland (J18) was the lead ship of the Halland-class destroyer. She and HSwMS Småland were the only ones built of their class. Two more ships were ordered but they were never completed.
HMS Östergötland(J20) was the lead ship of the Östergötland-class destroyer.
HSwMS Södermanland(J21) was the second ship of the Östergötland-class destroyer.
HSwMS Gästrikland(J22) was the third ship of the Östergötland-class destroyer.
HSwMS Hälsingland(J23) was the fourth ship of the Östergötland-class destroyer.
HSwMS Visby(J11) was the lead ship of the Visby-class destroyer.
HSwMS Hälsingborg(J13) was the third ship of the Visby-class destroyer.
HSwMS Kalmar(J14) was the fourth ship of the Visby-class destroyer.
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.