USS Tang (SS-306) was a Balao-class submarine of World War II, the first ship of the United States Navy to bear the name Tang. She was built and launched in 1943, serving until being sunk by her own torpedo off China in the Taiwan Strait on 24 October 1944.
In her short career in the Pacific War, Tang sank 33 ships totalling 116,454 tons. Commander Richard O'Kane received the Medal of Honor for her last two engagements (23 and 24 October 1944).
Tang was sunk during the last engagement by a circular run of her final torpedo, going down in of water. 78 men were lost, and the nine survivors were picked up by a Japanese frigate and taken prisoner of war. This was the only known time that a Momsen lung was used to escape a sunken submarine.
Construction
The contract to build USS Tang was awarded to Mare Island Naval Shipyard on 15 December 1941, and her keel was laid down on 15 January 1943. She was launched on 17 August sponsored by Mrs. Alix M. Pitre, wife of Captain Antonio S. Pitre, Director of Research at the Mare Island Naval Shipyard, and commissioned on 15 October 1943 with Lieutenant Commander Richard O'Kane, former executive officer of , in command, and delivered to the Navy on 30 November 1943.
Tang completed fitting out at Mare Island and moved south to San Diego for 18 days of training before sailing for Hawaii. She arrived at Pearl Harbor on 8 January 1944 and conducted two more weeks of exercises in preparation for combat.
First war patrol
Tang departed Pearl Harbor on 22 January 1944 to begin her first war patrol, destined for the Caroline Islands-Mariana Islands area. On the morning of 17 February, she sighted a convoy of two freighters, five smaller ships, and their escort. The submarine tracked the convoy, plotted its course, and then prepared to attack. An escort suddenly appeared at a range of and closing. Tang went deep and received five depth charges before the escort departed. Unscathed, she returned to periscope depth and resumed the attack. The range on the nearest freighter closed to , and Tang fired a spread of four torpedoes. Three hit, and Gyoten Maru (6,800 tons) sank by the stern. The submarine cleared the area by running deep and then attempted to get ahead of the convoy for a dawn attack, but the remaining freighter passed out of range, protected by aircraft.
During the night of 22 February, Tang made a surface attack on a convoy of three cargo ships and two escorts. She tracked the Japanese ships, through rain squalls which made radar almost useless, for 30 minutes before attaining a firing position, on the surface, off the port bow of a freighter. A spread of four torpedoes hit Fukuyama Maru (3,600 tons) from bow to stern, and the enemy ship disintegrated. Early the next morning, Tang made another approach on the convoy. The escort of the lead ship, the 6,800 ton Yamashimo Maru, moved from its covering position on the port bow, and the submarine slipped into it and fired four more torpedoes. The first hit the stern of the merchantman, the second just aft of the stack; and the third just forward of the bridge, producing a terrific secondary explosion. The ship was "twisted, lifted from the water", and began spouting flames as she sank.
On the morning of 24 February, Tang sighted a tanker, a freighter, and a destroyer. Rain squalls hampered her as she attempted to attain a good firing position, so she tracked the ships until after nightfall, then made a surface attack. She launched four torpedoes and scored three hits which sank the Tatutaki Maru-class freighter. The two remaining ships commenced firing in all directions, and Tang submerged to begin evasive action. She shadowed the enemy until morning and then closed the tanker for a submerged attack from extremely close range, just , barely enough to allow her torpedoes to arm. Additional lookouts had been posted on the target's deck and, when the spread of torpedoes from Tang struck her, they were hurled into the air with other debris from the ship. Echizen Maru sank in four minutes as Tang went deep and rigged for the depth charge attack that followed. During this evasion, a water leak developed in the forward torpedo room, and Tang exceeded her depth gauge maximum reading of 612 feet. Fortunately, the crew was able to get the submarine back under control and eventually return to the surface. (Postwar, JANAC denied credit for the tanker seen to explode.)