HMS Implacable was the lead ship of her class of two aircraft carriers built for the Royal Navy during World War II. She measured approximately 766 feet 6 inches (233.6 meters) in overall length and had a beam of 95 feet 9 inches (29.2 meters) at the waterline, with a deep load draught of 29 feet 4 inches (8.9 meters). Displacing 32,110 long tons (32,630 metric tons) at deep load, she was notably overweight and featured a complex internal structure designed to maximize aircraft capacity within the constraints of the Washington Naval Treaty. Power was provided by four Parsons geared steam turbines, producing up to 151,200 shp, enabling her to reach speeds close to 31.89 knots (59.06 km/h). Her fuel capacity of 4,690 long tons of fuel oil granted her a range of approximately 6,720 nautical miles at 20 knots. Her flight deck was 760 feet (231.6 meters) long, with a maximum width of 102 feet (31.1 meters), protected by 3-inch (76 mm) armor. The flight deck was equipped with a single hydraulic catapult, and her hangar facilities could hold up to 48 aircraft, with an operational capacity of up to 81 aircraft using a deck park. Her armament included sixteen 4.5-inch (110 mm) dual-purpose guns in eight twin turrets, along with a suite of AA defenses comprising octuple 2-pounder ("pom-pom") mounts and numerous Oerlikon 20 mm autocannons. The ship also carried multiple radar systems, including Type 277, Type 293, and likely Type 279 and Type 281B radars, providing surface search, target indication, and early warning capabilities. Laid down in February 1939 by Fairfield Shipbuilding and Engineering on the Clyde, Implacable was launched in December 1942 and commissioned in May 1944. Her service during WWII was marked by active participation in the European theater, notably attacking targets in Norway and supporting operations in the Pacific with the British Pacific Fleet, including the attack on Truk and operations near Japan. She was instrumental in repatriating Allied prisoners of war after Japan's surrender. Post-war, Implacable served as a training and flagship vessel for the Home Fleet until her decommissioning in 1954. She was briefly modernized but the plans were canceled, and she was sold for scrap in 1955. Her operational history and design made her a significant element of the Royal Navy’s aircraft carrier force during and immediately after WWII.

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