The Argentine Submarine Force Command is the submarine service branch of the Argentine Navy. Argentine submarines have traditionally been named after the provinces of the Republic whose name begins with the letter 'S'; they are home based at Mar del Plata naval base. COFS members have the same rank insignia and titles as the rest of the Navy. As of 2010, the elite group Agrupación de Buzos Tácticos is under the direct command of the submarine force. After the disappearance of ARA San Juan in November 2017, one TR-1700 and one Type 209 submarines remain in service. Two small surface vessels, ARA Punta Mogotes and ARA Luisito, are also part of the COFS and used in the training role. Like the rest of the Argentine armed services, the submarine force has been struggling to maintain its readiness due to budget constraints affecting equipment maintenance and personnel training. In 2012, the three boats then in service had maintenance difficulties and between them spent just 19 hours submerged. From summer 2019 to the present, the governments of Brazil and Argentina are currently working on a transfer deal of the four Tupi IKL209/1400 submarines currently operated by the Brazilian Navy. Two Subs are currently non operational pending repairs, the other two are still active pending their replacement by the 4 Scorpene type Submarines currently under construction. However, in the early 2000s they had been upgraded with new combat systems by Lockheed Martin Maritime Systems and Sensors. This gave the submarines the ability to carry and fire the MK 48 MOD 6AT ADCAP Torpedo. Although there are some reservations about the deal, the defense ministers and admirals of the Argentine Navy are enthusiastic about moving forward with it. The submarines can easily be repaired and serviced in the Tandanor drydock facility. If this deal succeeds it will allow Argentina to replace the two remaining submarines ARA Salta S-31, and ASA Santa Cruz S-41 currently in service with its fleet. It will also bolster its submarine force strength and its strategic position in the South Atlantic.
In 1927 the Argentine Navy signed a contract with the Italian shipyardFranco Tosi of Taranto in order to build the service's first three ships. The units arrived in Buenos Aires on April 7, 1933, and transferred to Mar del Plata on September 3, which became the Anniversary Day for the newly created Submarine Force. The Tarantinos, as they were known, served between 1933 and 1960 when the last one, Santa Fe, was retired after taking over a thousand dives. In 1938, the crew of Santa Fe had been awarded a civilian medal after assisting a local fishing boat that was in distress off Cabo Corrientes. Santiago del Estero established an immersion record for a submarine in the South Atlantic. Santiago del Estero took part in the blockade of the Rio de la Plata during the 1955 Revolución Libertadora, where she fought off a strike package of Gloster Meteor fighters loyal to president Juan Domingo Peron.
ARA Santa Fe
ARA Santiago del Estero
ARA Salta
Second generation
In April 1960 the US Navy agreed to transfer two units on loan under the Military Assistance Program. They departed from San Francisco, California on September 23 and arrived in Mar del Plata on November 30. These ships participated in numerous exercises during their career including UNITAS, CAIMAN, SAYONARA and CAIO DULIO. The conning towers of both submarines were locally upgraded to improve hydrodynamics. Some years ago, Argentinian officials disclosed that a group of tactical divers had carried out an incursion on the Falkland Islands on board the Santiago del Estero in October 1966. The submarines went back to the United States for mid-life repairs and were retired in 1971.
ARA Santa Fe, ex
ARA Santiago del Estero, ex
Third generation
In 1971 the US Navy transferred further units in order to replace the previous generation. Two GUPPY-type submarines were an interim measure until new submarines being built in Europe became available. Santiago del Estero was retired by September 1981 but Santa Fe would take part in the 1982 Falklands War. She landed a team of Buzos Tácticos on the initial amphibious assault and weeks later, after a successful resupply mission, was spotted on the surface. She was attacked with AS 12 missiles by a British Wasp helicopter and disabled off Grytviken, South Georgia; scuttled at dock by her crew, the submarine was eventually sunk in deep waters by the British some years after the war ended.
ARA Santa Fe, ex
ARA Santiago del Estero, ex
Fourth generation
In 1969 a contract was signed in West Germany for two Type 209 submarines. The ships were of the 56 metres/1100 ton sub-type; they were built in parts by Howaldtswerke at Kiel and delivered to Tandanor shipyard in Buenos Aires where final assembly was completed in 1973. The vessels were commissioned in 1974, but only San Luis was in service during the 1982 Falklands War. She reported two encounters with Royal Navy ships but without scoring hits due to problems with her torpedo's firing system. The threat posed by San Luis, however, forced the Royal Navy to give up recovery efforts of two Sea King helicopters which had ditched at sea on 12 May and 18 May 1982 respectively. Both aircraft were eventually destroyed by naval gunfire. She also tied up a considerable number of British naval assets deployed to counter her presence. There was an attempt to deploy the Salta to the Falklands area at the end of May, but excessive noise and problems with the torpedo firing system similar to those found on San Luis prevented her operational use. San Luis was struck from the Navy in 1997 after an incomplete overhaul, whilst Salta was still in service as of 2017.
ARA Salta
ARA San Luis
Fifth generation
As part of a major fleet renovation plan which included the MEKO frigates classes, a contract was signed in 1977 with West Germany's Nordseewerke for six TR-1700-class submarines, the last four of them to be built in Argentina. The Argentine Navy sponsored the development of the CAREM nuclear reactor to be installed on these submarines, but for political reasons the whole program was cancelled and only the two German units were delivered. These ships are the largest submarines built in Germany since World War II and are among the fastest diesel-electric submarines in the world.