units of various South American countries during Exercise UNITAS. In December, she returned to Charleston to resume local operations. Between 1961 and 1964, Odax conducted training operations out of Charleston with interim periods for overhaul and modernization. In August 1964, she deployed again to South America to participate in combined operations while circumnavigating the continent, returning in December. From 1965 to 1967 she operated out of Charleston. In May 1967, Odax began a deployment in Northern Europe. Upon her return to Charleston she was awarded the coveted Battle Efficiency "E" for Fiscal Year 1967. She resumed coastal operations in October 1967. In October and November 1967, Odax provided services to the Fleet Training Group in Guantanamo Bay, Cuba for a period of 8 weeks. In February 1968, Odax entered the Charleston Naval Shipyard for overhaul and upon completion in September operated in the Charleston area. In January 1969, Odax participated in fleet operations in the Caribbean. In March 1969, Odax deployed to the Mediterranean Sea for NATO operations. In August 1969, Odax conducted training operations in the local Charleston area. 1970s and transfer to Brazilian Navy In May 1970, Odax departed Charleston for northern Europe for a five-month NATO exercise. During this deployment, while submerged in the Norwegian Sea, Odax learned that her home port had been changed to Key West, Florida. In December 1970, Odax was awarded the Navy Unit Commendation for her participation in the NATO operations in Northern Europe. The ship was also awarded her second Battle Efficiency "E". During 1971, Odax participated in extensive tests of the new SQS-26 sonar system. Early in the year she took time out to visit New Orleans for Mardi Gras, and to submerge in the Mississippi River for publicity purposes. In August 1971, Odax went to Guantanamo Bay, Cuba to provide services for US and NATO training exercises. In February 1972, Odax again provided publicity services by submerging in the Mississippi River in downtown New Orleans during Mardi Gras. In March and April 1972, in her last military duty, Odax provided NATO services during a seven-week unsupported deployment to the Eastern Atlantic. On 8 July 1972, Odax was stricken from the Naval Vessel Register and transferred to Brazil. Commissioned into the Marinha do Brasil as Rio de Janeiro (S-13), she was decommissioned in 1978 and broken up in 1981. References Tench-class submarines Ships built in Kittery, Maine 1945 ships World