The SS Arago was a wooden-hulled, brig-rigged sidewheel steamer constructed in 1855 by Westervelt & Sons in New York City. Designed as a transatlantic mail and passenger vessel, she featured notable advances for her era, including oscillating engines, water-tight bulkheads, and wire bulwarks, which contributed to her durability at sea. Launched in January 1855 and making her maiden voyage on June 2 of that year under Captain David Lines, Arago was built to replace the lost vessel Humboldt and cost approximately $450,000. Her initial service included transporting passengers, cargo, mail, and specie between New York and European ports such as Southampton, Liverpool, and Le Havre, with her route primarily serving the New York & Havre Steam Navigation Company. Throughout her civilian career, Arago carried notable passengers, including Prince J. Bonaparte and abolitionist Gamaliel Bailey, who died aboard her in 1859. She also played a role in political history by returning Senator Seward from Europe in December 1859. Her operational profile changed dramatically during the American Civil War, when she was chartered by the Union Army's Army Transport Service. She served as a troop and equipment transporter, notably participating in the Union’s efforts to blockade and combat Confederate forces. In 1862, she was temporarily transferred to the Navy Department to participate in a planned ram attack on the CSS Virginia at Hampton Roads, although crew resistance prevented her from engaging in this hazardous mission. Arago was also involved in pivotal wartime events, such as transporting wounded from battles and capturing a Confederate blockade-runner, Emma, in 1863. Notably, she delivered the Fort Sumter Flag and Major General Robert Anderson back to Fort Sumter in May 1865, symbolically marking the Union victory. After the war, she underwent extensive refitting and resumed civilian service, carrying passengers and cargo, including cotton, until her sale in 1866. Subsequently, she was briefly chartered for passenger service before being sold to the Peruvian government in 1869. Her long service life, marked by roles in both commercial and military contexts, underscores her significance in mid-19th-century maritime 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.