HMS Tiger Bay was a Z-28-class patrol boat operated by the British Royal Navy, previously the Argentine Coast Guard vessel PNA Islas Malvinas (GC-82), which was seized at Port Stanley by the crew of on 14 June 1982 following the Argentine surrender during the Falklands War. Operational history Islas Malvinas was one of 20 vessels of the class built for Argentina by Blohm + Voss of Hamburg, Germany, all of which entered service in 1978. Following the invasion of the Falkland Islands on 2 April 1982, Islas Malvinas and her sister ship Rio Iguazú, sailed from Puerto Nuevo, Buenos Aires, on 6 April, with stops to take on fuel and supplies at Puerto Madryn and Puerto Deseado. The two ships then sailed the to Port Stanley, arriving on 13 April. The next day they were repainted from white to brown and green camouflage colours. Islas Malvinas was employed in various tasks, including reconnaissance patrols, radar sweeps, search and rescue missions, and piloting vessels entering Stanley Harbour. She also acted as an escort to supply ships sailing to remote military outposts. On 30 April she developed a fault on one propeller shaft, which cut her speed by half, but continued to operate. On 1 May, while escorting the supply ship ARA Forrest off Kidney Island, she engaged a British Lynx HAS.2 helicopter from the frigate . One crewman, Corporal Antonio Grigolato, was wounded by shrapnel before the helicopter retired, having been damaged by machine gun fire from Forrest, receiving hits in the engine, fuselage, fuel tank, tail rotor and cockpit. On 14 June, following the cessation of hostilities, she was manned by five men (commanded by Lt S H Hambrook) from , and HMS Bristol, and operated as HMS Tiger Bay, named after the Tiger Bay area of Cardiff. She originally had a tripod mast which she lost whilst transporting wounded to hospital ship Uganda in moderate swells. Ugandas bottom rose up and sat on top of the upper-structure crushing down the mast. The mast was not replaced. She acted as a courier for those ashore by ferrying from supply ships at anchor essential needs to landborne service men stationed at various parts of the islands. The RN crew had not been long on board when they found that the departing Argentine crew had left a welcoming present, mainly in the aft deck ammunition locker, booby-trapped with explosives. Information came to