Three ships of the Brazilian Navy have been named Rio Grande do Sul: Brazilian cruiser Rio Grande do Sul, a Bahia-class cruiser launched in 1909 and decommissioned in 1948 Brazilian submarine Rio Grande do Sul, the former American Balao-class submarine USS Sand Lance ; in Brazilian Navy service, 1963–1972; cannibalized for spare parts and scrapped by 1975 Brazilian submarine Rio Grande do Sul, the former American Tench-class submarine USS Grampus ; in Brazilian Navy service, 1973–1993 Wikipedia