ARA Alférez Sobral (A-9) is an 800-ton ocean-going tug[1] that was in service with the Argentine Navy from 1972 until 2019, where she was classified as an aviso.[2] She had previously served in the US Navy as the fleet tug USS Salish (ATA-187). In Argentine service an aviso is a small naval vessel used for a number of auxiliary tasks, including tugging, laying buoys, and replenishing other ships, lighthouses and naval bases.[3]
At the time the ship was approximately 60 nautical miles (110 km; 69 mi)[4][5] north of the Falkland Islands searching for the crew of a Canberra bomber that had been shot down two days earlier by an AIM-9 SidewinderAAM (air-to-air missile) fired from a British BAe Sea Harrier FRS.Mk.1 (XZ451). The Alférez Sobral was initially spotted by a Westland Sea King helicopter. When the helicopter approached to investigate and was engaged by Alférez Sobral's fore Oerlikon cannon, the helicopter retreated and requested an armed response.
In response HMS Coventry and HMS Glasgow launched their Westland Lynx HAS.Mk.2/3 helicopters. Coventry's Lynx (XZ242) attacked first, firing two Sea Skua (air-to-surface) anti-ship missiles. One of the missiles narrowly missed the bridge, the second hit Alférez Sobral's fibreglass motorboat, injuring the crew of a 20 mm cannon and knocking out the radio aerials.
Twenty minutes later Glasgow's Lynx (XZ247) launched two more missiles, at least one of which struck the bridge, causing extensive damage. The attack killed eight of the crew—including the ship's captain, Lieutenant Commander Sergio Gómez Roca—and injured eight. The Alférez Sobral lost all her electrical power, radio, radar and compass; she had no working navigational aids other than a landing compass, unsuitable for sailing.[6]
The ship survived the conflict and remained in naval service until August 2018. There are plans to preserve Alférez Sobral as a museum ship in Santa Fe.[11] In 2022 it was reported that she might be placed on the disposal list.[12] The ship's badly damaged bridge is currently on display at the Naval Museum in Tigre, Buenos Aires Province, Argentina.
Argentina's final Espora class corvette was renamed ARA Gómez Roca (P-46) to honour Sobral's captain, Sergio Raul Goméz Roca, the first commander of an Argentine ship to be killed in action since the war with Brazil in the 19th century.[13] The aviso ARA Teniente Olivieri (A-2) is named after the guardamarina (midshipman) Claudio Olivieri, also killed in the action and posthumously promoted to lieutenant.[14]
Specifications
ARA (A-9) Alférez Sobral, Sotoyomo-classaviso[2][15]
Displacement 835 tonnes
Length 43.6 m
Beam 10.3 m
Draught 2.2 m
Propulsion 2 GM 12-278 A diesel-electric 2200 HP engines, 2 1500 HP generators, 1 propeller
Cruising speed 8 kn
Maximum speed 13 kn
Range 16,500 nm
Armament 1 Bofors 40/60 C cannon, 2 x 20mm Oerlikon cannons
Crew: 46
^Cavalieri, Daniel (2005). Deuda de sangre: historia naval y amnesia en la Argentina : 1810-1893 y 1982 (in Spanish). Instituto de Publicaciones Navales. p. 302. ISBN9508990600.