The USS Pensacola was a screw steamer built at the Pensacola Navy Yard, launched on August 15, 1859, and commissioned initially on December 5 of that year for machinery installation. After a brief decommissioning on January 31, 1860, she was fully commissioned on September 16, 1861, under Captain Henry W. Morris. The vessel featured a screw propeller propulsion system, typical of mid-19th-century steamers, designed to enhance maneuverability and speed. During the Civil War, the Pensacola played a significant role in the Union blockade of the Confederacy. She departed Alexandria, Virginia, in January 1862 to join Admiral Farragut’s West Gulf Blockading Squadron. Notably, she participated in the historic attack past Fort St. Philip and Fort Jackson on April 24, 1862, and engaged Confederate batteries below New Orleans, Louisiana, the following day. Her crew distinguished themselves, with four sailors awarded Medals of Honor for their actions during the battle, including Boy Thomas Flood and Seaman Thomas Lyons. After her service along the Mississippi River, the Pensacola returned to the New York Navy Yard for repairs and machinery upgrades in 1864. She was recommissioned in August 1866, then reassigned to the Pacific Squadron, where she served as a flagship periodically, cruising from Chile to Puget Sound and Hawaii. During her Pacific service, she participated in rescue operations, notably awarding the Medal of Honor to Ordinary Seaman Patrick Regan in 1873 for rescuing a shipmate. She remained in the Pacific until June 1883, after which she sailed across the Atlantic through the Suez Canal to arrive in Hampton Roads in 1884. Recommissioned in 1885 under Captain George Dewey, she operated in Europe until 1888, then experienced a brief sinking incident at Portsmouth Navy Yard in 1889 when a storm flooded the drydock. Her later years included service along the Atlantic coast and a cruise to Africa. She returned to the Pacific in 1891, decommissioned at Mare Island in 1892, and was later recommissioned in 1898 as a training ship. Her final duties involved serving as a receiving ship until her decommissioning in 1911. The USS Pensacola was ultimately sunk by the Navy in San Francisco Bay in May 1912, marking the end of her career.

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