Upon reaching her station off the eastern coast of the Malay Peninsula, she joined a coordinated attack group of U.S. submarines covering the area.

Until her encounter with Blackfin, Shigure had been known for her legendary luck, surviving a number of important Japanese naval operations since the beginning of the war in the Pacific in December 1941.

She then reestablished contact with the convoy and later that night, while she prepared to renew her attack, she sighted a Japanese ship and an escort she had not seen before through her high periscope.

Since both Japanese convoys Blackfin had sighted were in shallow waters nearing Singapore, the commanding officers of the two submarines agreed to abandon the chase.

A few days later, Blackfin received orders to take station off Saigon in Japanese-occupied French Indochina for lifeguard duty in support of Allied airstrikes.

She then moved farther west to join a submarine scouting line in an attempt to contact a large Japanese naval force heading north from Singapore to Japan.

Blackfin then received orders to proceed to Subic Bay on Luzon in the Philippine Islands, where she concluded her patrol on 15 February 1945.

She was assigned a patrol area in the South China Sea off the coast of French Indochina near Camranh Bay as part of a large coordinated attack group of U.S. submarines.

Late in March 1945, the coordinated attack group received a report of a heavily escorted Japanese convoy moving up the coast of French Indochina.

The Japanese ships finally gave up the hunt, and Blackfin cleared the area and headed for the open sea to begin repairing her damage.

She was in the eastern approaches to the Ryukyu Islands en route to her patrol area in the Yellow Sea when World War II ended with the cessation of hostiities with Japan on 15 August 1945.

She paused at Pearl Harbor to top off fuel and supplies, and then left in company with the submarine USS Trumpetfish (SS-425) bound for the Arctic Ocean.

Blackfin provided antisubmarine warfare training services at Guam and also made a brief trip to Truk in the Caroline Islands.

She returned to Pearl Harbor on 26 December 1946 and carried out independent ship's exercises and multiship maneuvers in Hawaiian waters through 8 July 1947, when she shaped a course for San Diego.

She provided antisubmarine warfare training services in the San Diego operating area until 6 September 1947, when she got underway to return to duty with Submarine Squadron 1 at Pearl Harbor.

She conducted post-overhaul sea trials in June 1953 and departed the U.S. West Coast on 2 July 1953 en route Pearl Harbor.

From January to October 1956, Blackfin participated in submarine crew training exercises and provided services to surface and air antisubmarine forces operating in the Hawaiian Islands.

Among the ports she visited were Yokosuka, Kobe, Sasebo, Iwakuni, and Beppu, Japan; Subic Bay in the Philippines; Chinhae, South Korea; Kaohsiung, Taiwan; and Guam in the Mariana Islands.

She departed Guam in April 1959 and set a course for Australia to join in ceremonies commemorating the May 1942 Battle of the Coral Sea during World War II.

From June through October 1959, Blackfin participated in local operations in Hawaiian waters and made recreation trips to Kailua-Kona on the island of Hawaii and Wailuku on Maui.

During her deployment, she provided services to various aviation squadrons and United States Naval Reserve submarine divisions and conducted guest cruises.

Blackfin spent most of the time between January and March 1965 in port at Pearl Harbor, only putting to sea very occasionally for a brief local mission.

From mid-October through early December 1965, she provided local services in Hawaiian waters and participated in the antisubmarine warfare exercise SUBASWEX 4-65.

In early 1966, Blackfin entered the Pearl Harbor Naval Shipyard for an overhaul, during which a new fiberglass conning tower fairwater was added along with a new forward superstructure.

She spent the Christmas holidays in late December 1966 in port at Okinawa and the end of 1966 found her in the South China Sea heading for Subic Bay.

During filming of the 1968 movie Ice Station Zebra with Rock Hudson, Ernest Borgnine, and Patrick McGoohan, which took place between June and October 1967, scenes depicting the movie′s fictional submarine USS Tigerfish submerging and surfacing were shot off Hawaii aboard Blackfin.

Weapons systems accuracy trials in Dabob Bay, Washington, followed between 14 and 24 August 1969 and brought shore leave for her crew at Seattle and Vancouver.

She returned to Yokosuka on 19 September, but resumed operations on 22 October 1970 to provide services at sea to ships of the Japan Maritime Self- Defense Force and destroyers of the U.S.

She then continued southward and made port calls at Buenaventura, Colombia; Guayaquil, Ecuador; Salaverry and Callao, Peru; and Acapulco, Mexico, before returning to San Diego on 20 December 1971.

From January to June 1972, Blackfin operated along the U.S. West Coast, visiting San Francisco, Avalon, and Monterey, California; Seattle and Port Angeles, Washington; and Vancouver, British Columbia.