July, she arrived at Attu; and, on 25 July, she moored in Dutch Harbor. During the patrol, she had had only five clear days; four had been partially clear, the remainder had been foggy with poor to very poor visibility. Seventh war patrol On 6 August, S-35 began her seventh war patrol. Standing out of Dutch Harbor, she made for Attu, topped off in Massacre Bay; then proceeded to her patrol area. On 11 August, she sighted a ship, but was unable to close. On 19 August, cracks developed in the port engine crankshaft and couplings; and she turned back for Dutch Harbor. Overhaul followed her return; and on 26 November, she was again ready to hunt in the Kurils. Underway that day, she arrived on station on 8 December, and for the next ten days, encountered heavy seas, snow, and "mild icing" as she searched waters off Onekotan and in the Sōya-Araido and Omintao-Mushashi-Kashiwabara shipping lanes. On 19 December, she shifted north; reconnoitered the Kamchatka peninsula; then, headed home. En route, engineering defects again became critical, and almost 20 hours were spent in repairs. On 25 December, she arrived at Attu; and, on 30 December, she entered Dutch Harbor to complete her last war patrol. January 1944–March 1945 Fleet submarines now replaced the World War I-designed types. The Aleutian S-boats, as with those operating in other areas, were reassigned to training duty or designated for inactivation. S-35 was assigned to Pearl Harbor where she arrived in mid-February 1944 and immediately commenced training operations. In the spring, she was ordered to the Marshall Islands. Through the summer, she provided training services out of Majuro and Eniwetok, then returned to Pearl Harbor. In January 1945, she proceeded to San Diego for inspection and repairs, and, in February, she returned to Oahu for use as a damage control school ship. Decommissioning and disposal Decommissioned on 19 March 1945, she served as a school ship and then as a target ship. Her hulk was sunk by torpedo fire on 4 April 1946. Honors and awards Asiatic-Pacific Campaign Medal with one battle star for World War II service References External links Kill Record: USS S-35 United States S-class submarines World War II submarines of the United States Ships built in San Francisco 1919 ships Ships of the Aleutian Islands campaign Ships sunk as targets Maritime incidents in December 1942 Maritime incidents in 1946