ブラジル海軍
S Tikuna (S-34) is a Type 209 submarine of the Brazilian Navy. Built in the Brazilian Navy Yard in Rio de Janeiro (AMRJ), it was launched on March 2005 and incorporated into the Brazilian Navy on July 21, 2006, and then transferred to the Naval Operations Command. It is the fourth Brazilian Navy submarine made in Brazil and the largest ever built in the country.