^ Badly damaged hulk of the Argentinian submarine ARA Santa Fe, targeted by Royal Navy helicopters and frigates off South Georgia during the Falklands War
She took a beating, a testament perhaps to the hardiness of the Balao class.
Early on the morning of Sunday, 25 April 1982 she was spotted on the surface while off Cumberland Bay by a Wessex HAS.3 from the Royal Navy County class destroyer HMS
Antrim (D18). The helo attacked with a pair of Mk 11 depth charges (each comprising 170 lbs of Torpex explosive).
This initial attack caused fairly serious damage, but the sub limped back toward Grytviken (South Georgia.) A Lynx HAS.2 from the Type 22 frigate HMS
Brilliant followed up with a considerably more modern Mk 46 lightweight torpedo (probably the Mod 2), but this missed its target. (They always did, in the South Atlantic, as it turned out.)
Wasp HAS.1 helicopters were then launched from the Antarctic patrol vessel HMS
Endurance and the Rothesay class frigate HMS
Plymouth. These launched AS.12 air to surface missiles, at least two of which are believed to have struck home (causing the damage to the sail that you can see in the photo.) The helos also strafed the sub with 7.62mm GPMG bursts.
The Royal Navy's warships closed the distance at high speed but they did not engage in any direct action against
Santa Fe.
The submarine was still afloat but could not dive, and her crew abandoned her upon reaching the jetty at King Edward Point (South Georgia.)
She was scuttled in deeper water three years later.