, a Gato-class submarine, was the first ship of the United States Navy to be named for the haddo. Construction and commissioning Haddo′s keel was laid down by the Electric Boat Company at Groton, Connecticut. She was launched on 21 June 1942, sponsored by Mrs. Charles F. Russell, and commissioned on 9 October 1942. in command. Atlantic war patrols, April – July 1943 After conducting shakedown off New England, Haddo departed New London 9 April 1943 to patrol the shipping lanes to Rosneath, Scotland. She arrived 30 April and joined Submarine Squadron 50 (Subron 50), which was assigned to patrol off Norway and Iceland and stand ready in case of a breakthrough of the German fleet from Norway. When it became clear after three patrols that targets were scarce in this region, Haddo and her sister submarines were sent back to the United States. Fourth–sixth war patrols, November 1943 – July 1944 Haddo returned to New London 29 July 1943 and steamed via the Panama Canal to Mare Island, Calif. Assigned to the Pacific Fleet, she reached Pearl Harbor 25 November and put to sea 14 December on her fourth war patrol, in Philippine waters. The submarine made few contacts and terminated the patrol at Fremantle, Australia, 4 February 1944. Sailing from Fremantle 29 February, Haddo embarked on her fifth war patrol in waters off Borneo, Java, and Indochina. After a disappointing attack 8 March in which two torpedoes exploded prematurely, she made an attack on a tanker and escort 14 March which produced unconfirmed results. Moving to the Indochina coast, she sank a small craft with gunfire the night of 23 March and damaged freighter Nichian Maru 29 March before returning to Fremantle 22 April 1944. Haddo departed Fremantle 18 May 1944 to conduct her sixth war patrol in the East Indies. After suffering an air attack off Morotai 30 May, she sighted heavy smoke and proceeded to investigate. The smoke was a lure that concealed a Japanese patrol boat. After evading this one, Haddo encountered six more of the smoking lures. Haddo sank two small craft 11 June and scouted the Tawi Tawi anchorage on 14 June. Shortly thereafter she was detected by a patrol airplane and pursued for almost 10 days. Her sixth war patrol was terminated 16 July at Fremantle. Seventh war patrol, August – October 1944 For her seventh war patrol Haddo joined a coordinated