ARA San Juan S-42

 Scale 1:700 Brand Inizio (Score 5/10)

https://www.facebook.com/ericknnavas

https://www.instagram.com/ships_and_models_by_ericknavas/

ARA San Juan (S-42) was a TR-1700-class diesel-electric submarine in service with the Submarine Force of the Argentine Navy from 1986 to 2017. It was built in West Germany and entered service on 19 November 1985, and it underwent a mid-life update from 2008 to 2013.

On 15 November 2017, San Juan went missing during a routine patrol in the South Atlantic off the coast of Argentina, believed to have suffered an electrical malfunction, and a multi-nation search operation was mounted. Within hours of San Juan's last transmission, an acoustic anomaly consistent with an implosion was detected in the vicinity of the vessel's last known location. On 30 November, the search and rescue operation was abandoned.

The Argentine Navy reported on 16 November 2018 that the wreck of San Juan had been found at a depth of 907 metres (2,976 ft), 460 kilometres (290 mi) southeast of Comodoro Rivadavia. The submarine's imploded wreckage was strewn over an area of 8,000 square metres (86,000 sq ft).

Built by Thyssen Nordseewerke, San Juan was laid down on 18 March 1982 and launched on 20 June 1983. It had a single-hull design, with a lightweight bow and stern and a watertight superstructure in the central part. Its sister vessel, ARA Santa Cruz, is the only other one of its type, though the program originally sought to produce a larger number of submarines.

The submarine's name derives from the province of San Juan; the names of all Argentine submarines begin with the letter S. Past ships with the same name are a destroyer (1911), a surveyor (1929), and a torpedo boat (1937).

The prefix ARA is the acronym of the Argentine Navy in Spanish (Spanish: Armada de la República Argentina).

The submarine entered service on 18 November 1985.

In 1994, during the FleetEx 2/94 "George Washington" exercise with the United States Navy, San Juan avoided detection by United States anti-submarine forces for the entire duration of the war game, penetrating the destroyer defense and "sinking" the command ship USS Mount Whitney. The submarine took part in other exercises including Gringo-Gaucho and UNITAS.

The vessel underwent a mid-life update between 2008 and 2013, taking longer than expected due to budget constraints. The upgrade cost around 100 million pesos (US$12.4 million) and comprised more than 500,000 work hours during which the submarine was cut in half and had its four MTU engines and batteries replaced. The updates were carried out at the Argentine Industrial Naval Complex's (CINAR) Tandanor and Storni shipyards, in the southern sector of Buenos Aires port. Later, San Juan was tasked with carrying out surveillance exercises in the exclusive economic zone around Puerto Madryn, particularly in the role of combating illegal fishing.

On 17 November 2017, it was announced that San Juan had not been heard from since 15 November when the vessel was 430 kilometres (270 mi) from the coast, off San Jorge Gulf on its way to Mar del Plata from Ushuaia following a military exercise, and that a search and rescue operation had been launched in the same area. There were 44 servicemen on board the missing submarine, including Argentina's first female submarine officer, Eliana Krawczyk. The submarine carried oxygen for no more than seven days when submerged.

The search and rescue operation was carried out under the auspices of the International Submarine Escape and Rescue Liaison Office, an organisation of over 40 countries set up in 2003[26] following the Kursk submarine disaster. The search area was 482,507 square kilometres (186,297 sq mi) in size and weather conditions throughout the search and rescue period changed, making the task far more difficult on days with large waves and high winds. Search efforts continued several days, without success.

The Argentine ambassador in Austria, Rafael Grossi, an expert in security, disarmament and nuclear non-proliferation issues, had the idea to use an international hydrophones network, owned by the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, to search for clues about what could have happened with the vessel. He convinced Lassina Zerbo, CTBTO executive director, to order investigations in past records the organization has, looking for anomalies that could help. On 23 November the Argentine Navy said an event consistent with an implosion had been detected at 46.12°S 59.69°W by the CTBTO listening posts on Ascension Island (HA10) and Crozet Islands (HA04), and records did match with the day the submarine stopped communicating.

By 24 November, the search and rescue operation involved more than 30 aircraft and ships from Argentina, the United Kingdom, Brazil, the United States, Chile and other countries. In all, more than 4,000 personnel from 13 countries assisted the search, scouring an area the size of Spain.

On 27 November, it was revealed to the press that according to the submarine's last report from 15 November, San Juan's snorkel had leaked water into the forward storage batteries the day before, which ignited a fire. After quenching the fire, the crew disconnected the forward batteries. The submarine continued to move powered by the aft batteries.

On 30 November, 15 days after San Juan went missing, the Navy declared that the rescue phase of the operation was over, but the search for the submarine on the seabed would be continuing. The loss of 44 crewmen constitutes the largest loss of life aboard a submarine since the Chinese submarine 361 malfunctioned in April 2003, surpassing the K-152 Nerpa accident of 2008. A criminal investigation was launched into the disappearance.

On 16 November 2018, the remains of ARA San Juan were found at a depth of 907 metres (2,976 ft), at 45°56′59″S 59°46′22″W (20 km or 12 mi NNW from the seismic anomaly previously reported by the CTBTO) and nearly 270 nautical miles (500 km; 310 mi) from Comodoro Rivadavia, by a remote submersible operated by the Norwegian ship Seabed Constructor of the company Ocean Infinity, a private maritime company hired by the Argentine government.

It had been considered that the probability of locating the wreck in the area where it was eventually found was 90%, but previous searches failed to find it due to insufficient technology and presence of numerous submarine canyons. A "hydro-acoustic anomaly" consistent with an implosion had been detected 30 nautical miles (56 km; 35 mi) north of the submarine's last known position at 10:31 ART (13:31 UTC) on 15 November 2017. Photographs were released showing the shattered remains of the submarine broken up on the seabed. Ocean Infinity will receive a reward of US$7.5 million for finding the missing vessel. Argentine Navy spokesman Captain Jorge Balbi presented close-up photos of the wreck in a press briefing. The pictures show the imploded pressure hull, with the bow section, sail and propellers scattered in an area of 8,000 square metres (86,000 sq ft).

Name: San Juan

Namesake: San Juan Province, Argentina

Builder: Thyssen Nordseewerke, Emden, West Germany

Yard number: 465

Launched: 20 June 1983

Completed: 19 November 1985

Commissioned: 19 November 1985

Out of service: 15 November 2017

Refit: 2014

Stricken: 2017

Homeport: Mar del Plata

Identification: Pennant number S-42

Fate: Imploded; Sunk in the Atlantic Ocean[1]

General characteristics

Class and type: TR-1700-class submarine

Displacement:

2,140 tonnes (surfaced)

2,336 tonnes (submerged)

Length: 67.30 m (220.8 ft)

Beam: 8.36 m (27.4 ft)

Draught: 7.34 m (24.1 ft)

Propulsion:

1 shaft 4 × MTU diesels

1 × Siemens electric motor

Speed:

15 knots (28 km/h) surfaced

25 knots (46 km/h) submerged

Range: 12,000 nmi (22,000 km) at 8 kn (15 km/h) surfaced

Endurance: 30 days

Test depth: 300 m (980 ft)

Complement: 37

Sensors and

processing systems:

Radar Thomson-CSF Calypso

Sonar Atlas Elektronik CSU 3/4, Thomson Sintra DUUX-5

Armament:

6 × 533 mm (21 in) bow torpedo tubes

22 torpedoes

USS San Juan CL-54

 Scale 1:700 Brand Dragon (Kit Score 4/10)

https://www.facebook.com/ericknnavas

https://www.instagram.com/ships_and_models_by_ericknavas/

The second USS San Juan (CL-54), and the first to be named for the city of San Juan, Puerto Rico, was an Atlanta-class light cruiser of the United States Navy. She was laid down on 15 May 1940 by the Bethlehem Steel Co. (Fore River), Quincy, Massachusetts; launched on 6 September 1941; sponsored by Mrs. Margarita Coll de Santori; and commissioned on 28 February 1942, Captain James E. Maher in command.

1942

After shakedown in the Atlantic, San Juan departed from Hampton Roads, Virginia, on 5 June 1942 as part of a carrier task group formed around Wasp and bound for the Pacific. The group got underway from San Diego on 30 June escorting a large group of troop transports destined for the Solomon Islands where the Navy was about to launch the first major American amphibious operation of the war.[3]

Following rehearsal in the Fiji Islands, San Juan provided gunfire support for the landings at Tulagi on 7 August 1942. On the night of 8–9 August, she was patrolling the eastern approaches to the transport area between Tulagi and Guadalcanal, with Admiral Norman Scott embarked,[4] when gun flashes indicated that fighting was taking place in the western approaches. The action turned out to be the Battle of Savo Island, in which an enemy cruiser force sank four Allied cruisers. San Juan retired from the forward area with the empty transports on the 9th and escorted them to Noumea.

She then rejoined Wasp and operated with the carrier force for several weeks between the New Hebrides and the Solomons, on guard against a Japanese carrier attack. However, when this strike materialized on 24 August, San Juan had withdrawn to refuel and thus missed the Battle of the Eastern Solomons. Enterprise was hit in the battle, and San Juan, which had damaged a gun mount off Guadalcanal, escorted the carrier to Pearl Harbor, arriving on 10 September 1942.[3]

On 5 October, the cruiser again headed for the South Pacific, stopping first at Funafuti in the Ellice Islands to deliver a deck load of 20 mm guns to the marines who had just landed there. She then carried out a raid through the Gilberts sinking two Japanese patrol vessels on 16 October. Disembarking Japanese prisoners at Espiritu Santo, the cruiser joined Enterprise on the 23rd. Three days later, after patrol planes had made contact with enemy carrier forces, the Battle of Santa Cruz Islands was fought in which Hornet was lost and Enterprise damaged while the Japanese suffered severe losses in aircraft and pilots. During the last dive-bombing attack on the formation, one bomb passed through San Juan's stern, flooding several compartments and damaging, though not disabling, her rudder. She arrived at Nouméa with the task force on 30 October and then spent ten days at Sydney, Australia, receiving permanent repairs. San Juan joined Saratoga at Nadi, Viti Levu Island, in the Fijis on 24 November.[3]

1943

From December 1942 to June 1943, San Juan was based at Nouméa and operated in the Coral Sea, both with carrier groups and alone. At the end of June 1943, during the occupation of New Georgia, San Juan's carrier group patrolled the Coral Sea for 26 days to prevent enemy interference. Late in July, the force made a quick stop at Nouméa and moved to the New Hebrides, first to Havannah Harbor, Efate, and later to Espiritu Santo.[3]

On 1 November, the Saratoga group, including San Juan, neutralized airfields on Bougainville and Rabaul while Allied forces landed on Bougainville. In the middle of November, the task group acted as a covering force for the occupation of the Gilberts. San Juan then joined Essex on a raid on Kwajalein in the Marshalls, fighting off persistent torpedo plane attacks on 4–5 December. Detached on 6 December, the cruiser returned to the United States for overhaul at Mare Island.[3]

1944

San Juan rejoined Saratoga off Pearl Harbor on 19 January 1944 and the force covered the occupation of Eniwetok in February. San Juan next escorted Yorktown and Lexington in strikes on Palau, Yap, and Ulithi on 30 March and 1 April. On 7 April, the cruiser joined the new Hornet (CV-12), which covered the landings at Hollandia in April and then struck at Truk on 29–30 April. After returning to bases in the Marshalls, the Hornet group began support of the Marianas campaign in early June, striking at Iwo Jima and Chichi Jima in the Bonins, while American troops landed on Saipan. San Juan helped guard her group during the Battle of the Philippine Sea when American naval air power decisively defeated a Japanese counterattack to save the Marianas, and, in doing so, all but wiped out Japanese naval air strength.[3]

After a short stop at Eniwetok, San Juan escorted Wasp and Franklin during July as they covered the capture of Guam with strikes on Iwo Jima and Chichi Jima. After a strike on Palau and Ulithi, San Juan was ordered to San Francisco for overhaul, and departed from Eniwetok on 4 August escorting Yorktown.[3]

Following refresher training at San Diego and Pearl Harbor, San Juan joined Lexington's task group at Ulithi on 21 November. In early December, she screened the carriers in strikes on Formosa and Luzon in support of landings on Mindoro. During this operation, she was sent alone within scouting range of Japanese airfields in an effort to draw out Japanese aircraft by radio deception, but none rose to the bait. On 18–19 December, the force was battered by a typhoon, and returned to Ulithi on Christmas Eve.[3]

1945

Underway again six days later, the carriers covered the occupation of Luzon with strikes on Formosa, Okinawa, and Luzon from 3–9 January 1945, and then from 10–20 January raided ports and shipping in the South China Sea, particularly Saigon, Cam Ranh Bay, and Hong Kong. After replenishing at Ulithi, San Juan escorted Hornet in air strikes on Tokyo during the Iwo Jima operation in February and then returned to Ulithi on 1 March to prepare for the Okinawa invasion.[3]

San Juan rejoined Hornet on 22 March and, until 30 April, operated with her to the north and east of Nansei Shoto, interrupting her regular occupation of supporting air strikes and replenishment at sea with a bombardment, on 21 April, of Minami Daito Shima, a small island about 180 mi (290 km) from Okinawa. Planes from San Juan's group helped sink the giant Yamato on 7 April. After nine days at Ulithi, the Hornet group was back on station off Nansei Shoto for strikes on targets in Japan. San Juan arrived in Leyte Gulf on 13 June for repairs and then joined Bennington, on 1 July for more strikes on the Japanese home islands. She was at sea when the news of the Japanese capitulation was received on 15 August, and, on the 27th, after 59 days at sea, she joined the van forces for the triumphal entry of the 3rd Fleet into Sagami Wan, just outside Tokyo Bay.[3]

San Juan's embarked unit commander, Commodore Rodger W. Simpson, was assigned responsibility for freeing, caring for, and evacuating Allied prisoners of war in Japan. On 29 August, the ship entered Tokyo Bay and landed parties which liberated prisoners at camps at Omori and Ofuna and the Shanagawa hospital. The former prisoners were transferred to hospital ships Benevolence and Rescue. After evacuating camps in the Tokyo Bay area, San Juan moved to the Nagoya-Hamamatsu area to the south and then to the Sendai-Kamanishi area to the north. On completing her liberation duty, the cruiser moored on 23 September next to the last Japanese battleship, Nagato, at Yokosuka shifting to an outer anchorage there on 28 October. She sailed for the United States on 14 November, disembarked Commodore Simpson at Pearl Harbor, and continued to the US with homewardbound troops, arriving on 29 November. Three days later, she sailed on "Magic Carpet" duty to Nouméa and Tutuila, returning to San Pedro, California, on 9 January 1946 with a full load of troops.[3]

Decommissioning and sale

The cruiser arrived at Bremerton, Washington, for inactivation on 24 January 1946, and was decommissioned and placed in reserve there on 9 November 1946. San Juan was redesignated CLAA-54 on 28 February 1949. She was struck from the Navy list on 1 March 1959 and sold on 31 October 1961 to National Metal and Steel Corporation, Terminal Island, Los Angeles, California, for scrapping.[3]

Awards

San Juan received 13 battle stars for her World War II service

Name: San Juan

Namesake: The Municipality of San Juan, Puerto Rico

Builder: Bethlehem Shipbuilding Corporation's Fore River Shipyard, Quincy, Massachusetts

Laid down: 15 May 1940

Launched: 6 September 1941

Sponsored by: Mrs. Margarita Coll de Santori

Commissioned: 28 February 1942

Decommissioned: 9 November 1946

Reclassified: CLAA-54, 28 February 1949

Stricken: 1 May 1959

Identification:

Hull symbol:CL-54

Hull symbol:CLAA-54

Code letters:NCEL

ICS November.svgICS Charlie.svgICS Echo.svgICS Lima.svg

Honors and

awards: Bronze-service-star-3d.png Silver-service-star-3d.png 13 × battle stars

Fate: Sold for scrapping, 31 October 1961

General characteristics (as built)[1][2]

Class and type: Atlanta-class light cruiser

Displacement:

6,718 long tons (6,826 t) (standard)

8,340 long tons (8,470 t) (max)

Length: 541 ft 6 in (165.05 m) oa

Beam: 53 ft (16 m)

Draft:

20 ft 6 in (6.25 m) (mean)

26 ft 6 in (8.08 m) (max)

Installed power:

4 × Steam boilers

75,000 shp (56,000 kW)

Propulsion:

2 × geared turbines

2 × screws

Speed: 32.5 kn (37.4 mph; 60.2 km/h)

Complement: 820 officers and enlisted

Armament:

16 × 5 in (127 mm)/38 caliber Mark 12 guns (8×2)

16 × 1.1 in (28 mm)/75 anti-aircraft guns (4×4)

8 × single 20 mm (0.79 in) Oerlikon anti-aircraft cannons

8 × 21 in (533 mm) torpedo tubes

6 × depth charge projectors

2 × depth charge tracks

Armor:

Belt: 1.1–3 3⁄4 in (28–95 mm)

Deck: 1 1⁄4 in (32 mm)

Turrets: 1 1⁄4 in (32 mm)

Conning Tower: 2 1⁄2 in (64 mm)

General characteristics (1945)[1][2]

Armament:

16 × 5 in (127 mm)/38 caliber Mark 12 guns (8×2)

1 × quad 40 mm (1.6 in) Bofors anti-aircraft guns

5 × twin 40 mm (1.6 in) Bofors anti-aircraft guns

13 × 20 mm (0.79 in) Oerlikon anti-aircraft cannons

8 × 21 in (533 mm) torpedo tubes

6 × depth charge projectors

2 × depth charge tracks

USS San Juan SSN-751

Escala 1:700 Marca Hobbyboss (Score 7/10)

 

 

 Los submarinos de ataque clase Los Angeles de la Armada de los Estados Unidos, son la clase más numerosa de submarinos nucleares construidos por cualquier nación, y forman el grueso de la fuerza de submarinos de ataque de los EE. UU.; la clase fue nombrada en honor a la Ciudad de Los Ángeles. Fueron precedidos por la clase Sturgeon. Esta clase rompió una tradición de muchos años de la Armada de bautizar a sus submarinos generalmente con nombres de ciudades estadounidenses y de criaturas marinas. Los barcos también se conocen familiarmente como submarinos “688-class”, según el número de clasificación del casco del primer barco, USS Los Angeles (SSN-688). Los submarinos de la clase Los Angeles son rápidos, 25 nudos (46 kilómetros por hora, 29 mph) según el gobierno. Se cree sin embargo que pueden alcanzar los 35 nudos (65 kilómetros por hora) bajo condiciones buenas. (Se ha reconocido que el USS San Francisco iba a 35 nudos cuando chocó con un bajío submarino). Llevan cerca de 25 armas torpedos Tomahawk. Los 31 barcos de esta clase también tienen 12 tubos verticales de lanzamiento con el fin específico de lanzar misiles Tomahawks. Los 23 barcos finales de la serie, llamados “688i”, son más silenciosos, incorporan un sistema avanzado de combate, y se configuran para las operaciones bajo hielo (con el salto acepilla en el arco y una vela reforzada).

A los últimos 31 submarinos de esta clase se les han incorporado 12 tubos de lanzamiento Vertical (VLS) para lanzamientos de misiles Tomahawk.

Los últimos 23 barcos se conocen como clase 688i, por ser más silenciosos que sus predecesores, e incorporar un sistema de combate más avanzado. La Marina de Estados Unidos está descomisionando los viejos submarinos de esta clase que no poseen tubos VLS para dar preferencia a los submarinos Clase Virginia.

Varios submarinos de esta clase han estado involucrados en accidentes con otros submarinos.

Países en servicio: Estados Unidos
Tipo: Submarino nuclear de ataque (SSN)
Primera unidad: USS Los Angeles
Última unidad: USS Cheyenne
Clase Anterior: Cronológicamente: Submarinos estratégicos clase Benjamin Franklin
Por tipo: Submarinos de ataque clase Sturgeon
Clase Posterior: Cronológicamente: Submarinos estratégicos clase Ohio
Por tipo: Submarinos de ataque clase Seawolf
Características generales
Desplazamiento: En superficie: 6.080 t
Sumergido: 6.927 t
Eslora: 110 m
Manga: 10 m
Calado: 9,5 m
Armamento: 4 tubos de torpedos × 533 mm, 12 tubos para misiles BGM-109 Tomahawk
Propulsión: Un reactor nuclear S6G.
Velocidad: 32 nudos (60 km/h)
Autonomía: Ilimitada
Tripulación: 140 hombres