HMS Sheffield (D80) was a Type 42 guided missile destroyer of the Royal Navy, commissioned on 16 February 1975. As the first of her class, she measured approximately 133 meters in length and was equipped with the Sea Dart missile system, designed for air defense. Her distinctive superstructure featured "Mickey Mouse" ears—exhaust deflectors—on her funnel tops, which were intended to divert high-temperature exhaust gases from her Rolls-Royce Olympus TM3B gas turbines. This feature, however, made her a more prominent target for infrared-homing missiles. Constructed by Vickers Shipbuilding and Engineering at Barrow-in-Furness, Sheffield's construction was marred by a fatal explosion during assembly that resulted in the death of two workers and damaged her hull, which was subsequently repaired using a section from her Argentine sister ship, Hércules. Launched on 10 June 1971 by Queen Elizabeth II at an estimated cost of £23.2 million, Sheffield was initially involved in testing new systems and the Sea Dart missile, gradually becoming operational by 1980 after significant refits and system installations. Her service included participation in various exercises, such as Roebuck and Ocean Safari, and patrols in the Indian Ocean and Persian Gulf. During the Falklands War, she was deployed as part of Task Force 317 to retake the Falkland Islands. On 4 May 1982, Sheffield was struck by an Argentine Exocet missile launched from a Super Étendard aircraft, hitting her starboard side at deck level and causing a severe fire. The damage breached her hull, disabling critical systems and leading to her eventual abandonment and sinking on 10 May 1982 while under tow. Of her crew, 20 died, and only one body was recovered. The sinking of Sheffield marked the first Royal Navy vessel lost in action since World War II. Investigations revealed deficiencies in firefighting procedures and crew training, as well as issues with ship preparedness. Her loss underscored vulnerabilities in missile defense and ship damage control, making her a significant vessel in maritime military history. Her wreck remains a war grave and is protected under the Protection of Military Remains Act 1986.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.