[3] As of 1905, Peru's naval expansion plans included three Swiftsure-like battleships, three armored cruisers, six destroyers, and numerous smaller warships, all acquired in a nine-year, $7 million outlay.

[4] None of these purchases came to fruition, and Almirante Grau and Coronel Bolognesi remained the most powerful Peruvian warships for many years.

[5] They were powered by two coal-fired four-cylinder triple-expansion steam engines, each driving a single propeller shaft.

[5][6] 500 t of coal were carried, sufficient to give a range of 3,276 nautical miles (6,067 km; 3,770 mi) at 10 knots (19 km/h; 12 mph).

Anti-aircraft armament was strengthened by the addition of seven .50 in (12.7 mm) Browning machine guns, while a depth charge thrower and rails was fitted to provide an anti-submarine capability.

After the war, they were used as training ships, and then as stationary hulks before being stricken on 24 June 1958 and sold for scrap.