I thought they used a wire-guided Mk48, pre-ADCAP?
Britain doesn’t have the MK-48.The Conqueror fired British MK-8 torpedoes,though she also had the MK-24 Tigerfish.
At 15:57 on May 2, Conqueror fired three conventional Mk 8 mod 4 torpedoes, each with an 800 lb (363 kg) Torpex warhead, two of which hit the General Belgrano. The Conqueror was also equipped with the newer Mark 24 Tigerfish homing torpedo, but there were doubts about its reliability. The Mk 8 dated back to the 1930s and was not a homing design.
The Mk 48 can operate with or without wire guidance