The sail was larger than the previous class which helps in the surveillance tasks.

The submarines were armed with two 533 mm tubes capable of carrying G7a or G7e torpedoes.

[1] The Tiburón-class had only two units, SA-51 and SA-52, but despite an improved version of the previous class, never got to join the navy.

[2] On May 9, 1986, the SA-51 submarine was donated to the La Caixa Foundation for its science museum, now called "CosmoCaixa".

The SA-52 remains on display at the Isaac Peral Naval Base in Cartagena.