&sq=&lang=&file=File:MancoCapac.jpg) Oneota after her rechristening as Manco Cápac and the addition of two masts
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| History | |
|---|---|
 United States | |
| Name | USS Oneota |
| Namesake | Oneota Tribe of the Sioux Indians |
| Ordered | 1862 |
| Builder | Alexander Swift & Company, Cincinnati, Ohio |
| Laid down | 1862 |
| Launched | 21 May 1864 |
| Completed | 10 June 1865 |
| Fate | Sold to builder, 13 April 1868 |
 Peru | |
| Name | BAP Manco Cápac |
| Namesake | Manco Cápac |
| Acquired | 1868 |
| Fate | Scuttled, 7 June 1880 |
| General characteristics | |
| Class and type | Canonicus-class monitor |
| Displacement | 2,100 long tons (2,100 t) |
| Tons burthen | 1,034 tons (bm) |
| Length | 225 ft (68.6 m) |
| Beam | 43 ft 3 in (13.2 m) |
| Draft | 13 ft 6 in (4.1 m) |
| Installed power |
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| Propulsion | |
| Speed | 8 knots (15 km/h; 9.2 mph) |
| Complement | 100 officers and enlisted men |
| Armament | 2 × 15-inch (381 mm) smoothbore Dahlgren guns |
| Armor |
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USS Oneota was a single-turreted Canonicus-class monitor built for the Union Navy during the American Civil War. Completed shortly after the end of the war, Oneota was laid up until sold to her builders in 1868, and then resold to the Peruvian Navy. Renamed BAP Manco Cápac, the ship participated in the defense of Arica during the War of the Pacific. When the town was taken by Chilean troops in 1880, she was scuttled to prevent her capture. Her wreck was rediscovered in 1960 and it has been heavily looted.