10 September 1862, the contract to build the monitor was signed between the US Federal Navy and the yard.
She was built on the yard of Alex Swift & Co. and Niles Works, at Cincinnati, Ohio.
21 May 1864, launched under the name ONEOTA. One of the Canonicus class.
Tonnage 2.100 tons displacement, dim. 68.58 x 13.2 x 3.78m, draught 11.6ft.
Powered by an Ericsson VL engines manufacture by the builder, 320 hp., speed 6 knots, two boilers, single screw. Her designed speed of 13 knots she never achieved. Bunker capacity 140 tons, sufficient for 5 days steaming.
Armour: The wooden hull was sheated with 3 -5 inch thick iron plates, 1.5 inches deck and 10-inch turrets
Armament: 1 Dual turret with two Dahlgren 40 cm. guns.
Crew 100.
10 June 1865 completed and placed in reserve. Never commissioned under US flag.
1868 Sold to Alex Swift & Co., and resold on 2 April 1868 to Peru, renamed MANCO CAPAC, she is named in honor of the first ruler of the Inca Empire
Under command of Capt. Camilo Carrillo of the Peru Navy the MANCO CAPAC together with her sister ATAHUALPA sailed from New Orleans early January 1869, she were assisted and towed by the transports REYES, MARAÑON and PACHITEA. A very risky tow, the monitors did have a freeboard of only 12 inches. And could sail under own steam only for five days.
The tow took 15 months (I believe trough Magellan Strait and not around Cape Horn) before both monitors arrived in Callao in June 1870. Purchase price of both monitors and cost of voyage to Peru was one million US dollar.
After arrival in Peru used in the coastal waters of Chili, and when war broke out between Chili and Peru in April 1879, both monitors were in a bad condition.
The MANCO CAPAC could not make more than a speed of 3.5 knots.
She was used as a floating battery.
When war broke out between Chili and Peru in April 1879, in May the Peruvian First Naval Division under command of Commander Miguel Grau, sailed from Callao to the Southern port of Arica. Both monitors the ATAHUALPA and MANCO CAPAC, which were part of the Second Naval Division, joined the First Division. By engine troubles the ATAHUALPA had to be towed back to Callao.
After arrival in Arica the MANCO CAPAC under command of Jose Sanchez Lagomarsino was used as a floating battery for protection of the port.
27 February 1880, Arica was attacked by two Chilean warships the ironclad HUASCAR and the corvette MAGELLAN both sustained heavy fire from the forts of that town and from the monitor MANCO CAPAC.
The Captain Manuel Thompson of the HUASCAR and seven other were killed in the day’s fighting. The HUASCAR retaliated with other Chilean warships with a bombardment of 4 days on the town.
06 June 1880, the Chilean fleet again shelled Arica, and one of the grenades fired by the MANCO CAPAC hit the COCHRANE causing damage and several casualties. Another shell fired by her hit the COVADONGA, which had to be withdrawn.
28 February, Arica was taken by a Chilean infantry assault.
To avoid capture by the Chilean the MANCO CAPAC was scuttled by her commander and crew.
Her sunken hull, mostly intact, still exist is reported.
Peru 1986 1i sg1653, scott?
http://members.lycos.co.uk/Juan39/More_ ... ips_1.html
http://www.hazegray.org/navhist/battleships/us_mon.htm http://members.lycos.co.uk/Juan39/Ameri ... itors.html