During the journey, "Cardiff"s crew performed various training exercises, including defence against air attack (involving simulation runs by friendly Harrier and Jaguar aircraft), nuclear, biological, and chemical weapons and Exocet anti-ship missiles. All British Type 42's involved in the war were instructed to paint two vertical black stripes down either side the middle of their ships. This would allow the Royal Navy submarines to distinguish them from the two Argentine Type 42's. On 22 May, an Argentine reconnaissance Boeing 707, no. TC-92 of the Argentine Air Force's (Spanish for "2nd Air Transport Squadron, Group 1"), was fired on by "Cardiff". The aircraft was detected while shadowing the Bristol group, and "Cardiff" was ordered to drop back and engage. The ship fired two Sea Darts at the aircraft at 11:40 (local time) from maximum range; the first fell short and second missed due to evasive manoeuvres taken by the aircraft's crew. After the attack, TC-92 dropped below radar level and returned to El Palomar. On 25 May, "Cardiff" was tasked with the recovery of four Special Air Service (SAS) troopers, who had parachuted from a C-130 Hercules passing over the destroyer.