Question: What's Blanco Encalada's main artillery?
SQL: SELECT "Main Artillery" FROM "1-23614702-1" WHERE "Warship" = 'Blanco Encalada';

Question: How many different horse-powers does the Cochrane have?
SQL: SELECT COUNT("Horse- power") FROM "1-23614702-1" WHERE "Warship" = 'Cochrane';

Question: What warship has horse-power of 1500?
SQL: SELECT "Warship" FROM "1-23614702-1" WHERE "Horse- power" = 1500.0;

Question: How much does the Independencia weight?
SQL: SELECT MIN("tons ( L.ton )") FROM "1-23614702-1" WHERE "Warship" = 'Independencia';

Question: In how many different years was the warship that weights 1130 tons built?
SQL: SELECT COUNT("Built Year") FROM "1-23614702-1" WHERE "tons ( L.ton )" = 1130.0;