The USS O'Brien (Destroyer No. 51/DD-51) was the lead vessel of the O'Brien-class destroyers built for the United States Navy prior to World War I. Laid down by William Cramp & Sons of Philadelphia in September 1913 and launched in July 1914, she was commissioned on 22 May 1915. The ship measured 305 feet 3 inches (93.04 meters) in length, with a beam of 31 feet 1 inch (9.47 meters), and a draft of 9 feet 6 inches (2.90 meters). Her standard displacement was approximately 1,050 long tons, increasing to 1,171 long tons when fully loaded. The O'Brien was powered by two Zoelly steam turbines driving two screw propellers, supplemented by twin triple-expansion steam engines for cruising, all fueled by four oil-burning White-Forster boilers. This configuration allowed her to reach speeds of up to 29 knots (54 km/h), producing 17,000 shaft horsepower. Armament included four 4-inch/50 caliber Mark 9 guns, each weighing over 6,100 pounds and capable of firing armor-piercing shells up to 15,920 yards (14,560 meters). She was also equipped with four twin 21-inch torpedo tubes. Although the original design called for anti-aircraft guns and provisions for laying mines, it is unclear if these features were fitted. Constructed as the lead ship of her class, she was named in honor of Jeremiah O'Brien and his brothers, Revolutionary War heroes who captured a British warship. After her commissioning, USS O'Brien conducted operations along the East Coast and in the Caribbean, notably participating in rescue efforts following the German U-53 submarine’s attacks off Nantucket in October 1916. During World War I, she served overseas, patrolling the Irish Sea out of Queenstown, Ireland, and later transferred to the French coast for anti-submarine patrols. She was involved in notable wartime activities, including an attack on a German U-boat in June 1917. After the war, she transported mail and passengers across the Atlantic and was part of the first aerial crossing of the Atlantic as a rescue picket in 1919. Decommissioned in June 1922, USS O'Brien was struck from the Naval Vessel Register in 1935 and sold for scrap. Her service history highlights her role in early 20th-century naval operations and anti-submarine warfare, marking her as a significant vessel in U.S. naval history.

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