SPS Isaac Peral (S-32)
On 1 July 1971, Ronquil was decommissioned, struck from the Naval Register, and transferred to Spain, under the Mutual Security Assistance Act. The submarine was commissioned into the Spanish Navy as Isaac Peral (S-32), named after Spanish submarine pioneer Isaac Peral. Under her new commander Lt. Cmdr. Pedro Soler Yolif, she sailed from San Diego to her new homeport of Cartagena, Spain, arriving 22 August.
Isaac Peral faced retirement in 1982, but her service was extended until the commissioning of the new Siroco (S-72). The Spanish Navy decommissioned Isaac Peral on 3 April 1984.
Read more about this topic: USS Ronquil (SS-396)