The Abtao class were four submarines of the Peruvian Navy.
They were replaced by the Kortenaer class frigates in the early 1980s and seven ships were sold to the Peruvian Navy where they served until 1991.
Captain Germán Astete of the Peruvian Navy took with him dozens of Gatling guns from the United States to Peru in December 1879 during the Peru-Chile War of the Pacific.
After the war, McIntyre was assigned to the Peruvian Navy as a gunnery adviser, retiring with the rank of Captain.
Peruvian Navy: 2 ironclad, 2 coastal monitors, 1 corvette, 1 gunboat
December 1880
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Commander in Chief of the Peruvian Navy
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Later she escaped damage from the continuous attacks of the Chilean Navy during the blockade of Callao between 1880 and 1881, but after the defeat of the Peruvian Army in the battles of San Juan and Miraflores, the Secretary of the Navy, Captain Manuel Villar, ordered during the night of January 16, 1881 the destruction of the port defenses and the remaining ships of the Peruvian Navy
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Veteran of two wars and many internal conflicts, from 1873 due her age it served as training ship in Callao port until January 17, 1881, when she was scuttled along with the rest of the Peruvian Navy to prevent being capture by the Chilean troops who occupied the port after the defeat of the Peruvian Army in the battle of San Juan and Miraflores.
After the disastrous reduction of the Peruvian navy at the First Naval Battle of Iquique, presidente Prado of Peru ordered Admiral Grau to harass the Chilean shipping lines and to try to disrupt their commerce.
The government plan was to attack the Peruvian navy immediately, as it was undergoing repairs in the port of Callao and was thus virtually defenseless.