USS Greenfish ( SS - 351 ) USS " Greenfish " ( SS - 351 ) was a " Balao " - class submarine of the United States Navy . It was named for the greenfish , one of various labroid fishes , Florida bluefish or ladyfish . " Greenfish " ( SS - 351 ) was launched by the Electric Boat Co . , Groton , Conn . , 21 December 1945 ; sponsored by Mrs . Thomas J . Doyle ; and commissioned 7 June 1946 , Comdr . R . M . Metcalf commanding . " Greenfish " ' s shakedown cruise 22 July to 13 September 1946 , took her to Barranquilla , Colombia ; the Canal Zone ; Callao , Peru ; and St . Thomas , Virgin Islands . Exercises out of New London and in Chesapeake Bay carried her through the year , and the early months of 1947 found " Greenfish " back in the Caribbean for fleet exercises . On 11 February 1947 she effected one of the first transfers of personnel from an aircraft carrier , , to a submarine by helicopter . Various exercises along the American coast and in the Caribbean occupied " Greenfish " until 8 January 1948 , when she entered the Electric Boat Co . yards for a GUPPY II conversion . This included the installation of snorkel ing equipment on " Greenfish " , enabling her to run her diesel engines while submerged , which required the enlargement of her " sail " . In addition , more batteries were installed to increase her submerged speed and permit the ship to remain completely submerged for longer periods . Returning to New London 21 August 1948 , " Greenfish " sailed on her " second " shakedown cruise 1 September , with Rear Admiral James J . Fife , Commander , Submarine Force , Atlantic Fleet , aboard . She transited the Panama Canal 9 September and engaged in exercises at Balboa before returning to New London 24 September . The new GUPPY submarine was attached to the Pacific Fleet , and sailed for Pearl Harbor 23 October . She reached her new home 25 November 1948 . With the exception of ASW and harbor defense exercises in Puget Sound in 1950 and a subsequent Mare Island overhaul , " Greenfish " operated out of Pearl Harbor on local exercises through 1951 . Departing Pearl Harbor 15 November 1951 , " Greenfish " sailed to Yokosuka , Japan , for Korean War duty . After a patrol 31 January to 1 March 1952 , She participated in exercises at Okinawa and then returned to Hawaii 2 June . Local and special operations filled her time until 5 November 1954 , when she entered the Pearl Harbor Shipyard for another modernization overhaul . " Greenfish " , overhaul completed 6 July 1955 , sailed for deployment with the 7th Fleet 15 September and reached Yokosuka 29 September . From 19 October to 15 November she engaged in special operations , and then embarked on a tour of Southeast Asia . Ports visited by " Greenfish " during her 2 - month cruise included Manila , Singapore , Rangoon , where she was the first submarine ever to visit and was inspected by Burmese Prime Minister U Nu , and Hong Kong . After further exercises off Okinawa and Yokosuka , " Greenfish " returned to Pearl Harbor 13 March 1956 . The following 5 years fell into a pattern for Greenfish — local operations out of Pearl Harbor , special operations , exercises along the American coast , and periodic overhauls . " Greenfish " entered Pearl Harbor Shipyard 15 December 1960 for a FRAM ( Fleet Rehabilitation and Modernization ) overhaul and extensive conversion to a GUPPY III class ship . This included cutting " Greenfish " in half and adding a section of hull to permit more batteries and other equipment . Conversion completed , " Greenfish " departed 28 July 1961 for shakedown , operations at Pearl Harbor , and in December sailed to serve with the 7th Fleet . In addition to special operations , the submarine participated in various fleet and ASW exercises and visited several ports , including Hong Kong , Manila , and Okinawa . Returning to Pearl Harbor June 1962 , " Greenfish " engaged in local operations until October , when the Cuban missile crisis sent her to Japan to strengthen the 7th Fleet . Upon return to Hawaii December 1962 , she underwent a brief overhaul and then resumed her peace time schedule of local and special operations interspersed with training exercises . Based at Pearl Harbor , she participated in various ASW exercises while maintaining the high tempo of training and readiness for her crew . From 30 March 1964 to 4 September she underwent overhaul ; and , after a cruise to the Pacific Coast and back , " Greenfish " departed for the Far East 27 January 1965 . She arrived Japan early in February and during the next 4 months operated with the 7th Fleet in waters from Japan to the Philippines . She returned to Pearl Harbor 1 August , continued type training into 1966 , and deployed once again to the Western Pacific 1 February 1966 . She completed her duty with the 7th Fleet 1 July and returned to Hawaii later that month to resume readiness exercises out of Pearl Harbor . Into 1967 she continued to serve in the Pacific Fleet ' s submarine force . In 1970 she underwent a yard overhaul at Hunters Point Naval Shipyard , San Francisco , CA . She then underwent weapons alignment in Bangor , WA . Greenfish Transited the Panama Canal and proceeded to Sub base New London . She made a Med cruise and North Atlantic cruise in 1971 and a springboard exercise in 1972 . Brazilian submarine " Amazonas " ( S - 16 ) . " Greenfish " was decommissioned , struck from the US Naval Register 29 October 1973 , and transferred ( sold ) under terms of the Security Assistance Program to Brazil , 19 December 1973 , where she was renamed " Amazonas " ( S - 16 ) , the eighth Brazilian Navy ship to be named for the Amazon River . She was struck 15 October 1992 , originally to be transformed into a museum ship at the centro Histórico da Marinha in Rio de Janeiro . However , she was ultimately judged to be in too bad condition , and was scrapped in 2001 .