Modern Brazilian naval capabilities has been slowly progressing with each passing decade and this is through necessity of defending a rather large length of coastline. The country also represents one of the leading powers of the South American continent and has been placing greater emphasis of design, development, and manufacture of military equipment internally - driven through several product lines like aircraft and submarines.
Tikuna (S34) represents a relatively new attack submarine of conventional propulsion and design as part of the Tupi-class. The boat was constructed at a local Brazilian Navy shipyard as part of a decided initiative to produce a more self-sustaining Brazilian military force, becoming dimensionally the largest submarine to be attempted by the country in its history. The boat holds origins in the German Type 209-class of boats which emerged in 1971 with 61 having been completed since, these vessels serving a variety of nations like Argentina, Chile, Colombia, Ecuador, Greece, India, Indonesia, South Korea, Peru, South Africa, Turkey, and Venezuela. Many countries have also adopted policies of locally-producing the boats for simple education into the processes and operation involved for their respective navies.
The propulsion system of Tikuna is the traditional diesel-electric arrangement which uses diesel engines for surface travel and battery power for electric engines during underwater travel. The arrangement is far less costly and dangerous than nuclear reactor propulsion but lacks its inherent power. Nuclear propulsion is generally seen in top tier navies of the world such as that of the United States, Britain, France, and Russia with other nations like China and India entering the fold. Tikuna is armed through two banks of four torpedo tubes (for a total of eight launch tubes) and crewed by 36 personnel (including seven officers).
Tikuna was launched to sea during March of 2005 and commissioned on July 21st, 2006 where she maintains an active presence in the growing Brazilian Navy fleet.