The USS Helena (CL-50) was a Brooklyn-class light cruiser constructed for the United States Navy in the late 1930s, representing the final vessel of this class. She measured approximately 607 feet 4 inches (185 meters) in length overall, with a beam of about 61 feet 7.5 inches (18.78 meters) and a draft of 22 feet 9 inches (6.93 meters). Her standard displacement was 10,000 long tons, increasing to over 12,200 long tons at full load. Helena was powered by four Parsons steam turbines, each driving a propeller shaft, utilizing steam from eight oil-fired Babcock & Wilcox boilers. These turbines rated at 100,000 shaft horsepower aimed to propel her at speeds up to 32.5 knots, with a cruising range of 10,000 nautical miles at 15 knots. Her armament as designed included fifteen 6-inch/47 caliber Mark 16 guns in five triple turrets along the centerline, complemented by eight 5-inch/38 caliber dual-purpose guns in twin turrets, and an initial anti-aircraft battery of eight 0.5-inch guns, later expanded. Her armor comprised a 5-inch belt, a 2-inch deck, and main turrets protected by 6.5-inch faces. Helena carried four Curtiss SOC Seagull floatplanes for reconnaissance, launched via two catapults, and her crew numbered approximately 52 officers and 836 enlisted men. Her service history began with peacetime training and diplomatic visits, but her role drastically changed with the outbreak of World War II. She was present during the attack on Pearl Harbor in December 1941, where she was torpedoed on her starboard side, causing significant hull damage. After repairs and modernization in early 1942, Helena participated actively in the Guadalcanal campaign, notably in the Battle of Cape Esperance and the Naval Battle of Guadalcanal, where her rapid fire and combat maneuvers contributed to Japanese defeats. She also provided convoy escort, shore bombardments, and fire support for land operations throughout the Solomon Islands. Tragically, Helena was sunk during the Battle of Kula Gulf in July 1943 after being hit by multiple torpedoes from Japanese destroyers. The damage broke her keel, flooded her machinery spaces, and caused her hull to split amidships, leading to her sinking. Despite her loss, Helena's combat record underscored her resilience and vital role in naval operations in the Pacific. Her wreck was discovered in 2018 at a depth of approximately 860 meters (2,820 feet), lying as a testament to her service and sacrifice in the Pacific Theater.

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