HMS Grenville (R97) was a Royal Navy U-class destroyer launched on 12 October 1942 at Swan Hunter and Wigham Richardson Ltd., Wallsend-on-Tyne, and commissioned on 27 May 1943. She measured approximately 362 feet 9 inches (110.57 meters) in overall length, with a beam of 35 feet 8 inches (10.87 meters) and a draught of 10 feet (3.05 meters) at mean load, extending to 14 feet 3 inches (4.34 meters) at full load. Displacing around 1,777 long tons (1,806 tonnes) standard and 2,528 long tons (2,569 tonnes) fully loaded, she was powered by two Admiralty 3-drum water-tube boilers feeding Parsons single-reduction geared steam turbines, rated at 40,000 shaft horsepower. This machinery allowed a top speed of 36 knots (41 mph). Her armament included four 4.7-inch (120 mm) QF Mk. IX guns, capable of elevating to 55°, enhancing her anti-aircraft capability. She was equipped with a Hazemayer twin Bofors 40 mm mount, four twin Oerlikon 20 mm cannons, and later, five single 40 mm Bofors guns. For anti-ship warfare, she carried two quadruple 21-inch (533 mm) torpedo mounts and was fitted with a depth charge outfit comprising four mortars, two racks, and 70 charges for anti-submarine defense. HMS Grenville was fitted with various radar and HF/DF systems, including Type 291 air warning radar, Type 285 fire control radar, and Type 282 radar for her Hazemayer mount. As a leader, she carried a crew of 225 officers and ratings. Her wartime service was extensive. She participated in anti-submarine operations off northwest Spain, notably during the attack by German aircraft using glider bombs, where she was involved in the blockade runner sweeps along the French coast. She supported the Allied landings at Anzio and Normandy, and later served in the Indian Ocean against Japanese forces, escorting the British Pacific Fleet during raids on Sumatra and Okinawa. Notably, she relayed Australian programs via shortwave in 1946. Post-war, HMS Grenville served in reserve and training roles, including conversion into a Type 15 frigate in 1953–54, with significant modifications such as extended superstructure and reduced armament focused on anti-submarine warfare. She also tested experimental helicopter landing facilities and radar systems, contributing to naval trials and operations until her decommissioning in 1974. She was scrapped on the River Medway in 1983, ending a distinguished service spanning wartime and Cold War naval developments.

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