sentences:  Purchase of existing ships was not a practical option, so the Chileans asked Reed to design the ships for construction in the United Kingdom.Chile ordered the ships, to be named "Constitución" and "Libertad", in 1901, "Constitución" from Armstrong Whitworth at Elswick and "Libertad" from Vickers at Barrow-in-Furness.The ships were considered second-class battleships, lightly constructed, armed, and armoured by British standards; "Swiftsure", in fact, suffered from structural weakness while in service and required hull strengthening, although "Triumph" did not have such problems.