 They had four funnels, a tall, narrow fore funnel and three broad, short funnels behind.They were initially armed with six single QF 4-inch guns, unusually arranged with four on the forecastle - two sited in front of the wheelhouse and two sited abreast it - the remaining pair being sited on the quarterdeck.These guns were of a novel Elswick design for the Chileans and when the ships were rearmed they were replaced with standard Royal Navy models.