Darter (SS-227), "Down the Ways," 6 June 1943.
|Career (United States)|
|Builder:||Electric Boat Company, Groton, Connecticut|
|Laid down:||20 October 1942|
|Launched:||6 June 1943|
|Sponsored by:||Mrs. E. B. Wheeler|
|Commissioned:||7 September 1943|
|Fate:||Grounded in the Palawan Strait and scuttled on 24 October 1944|
|Class and type:||Gato-class diesel-electric submarine|
|Displacement:||1,525 long tons (1,549 t) surfaced, 2,424 long tons (2,463 t) submerged|
|Length:||311 ft 9 in (95.02 m)|
|Beam:||27 ft 3 in (8.31 m)|
|Draft:||17 ft (5.2 m) maximum|
4 × General Motors Model 16-248 V16 diesel engines
driving electrical generators
|Speed:||21 kn (24 mph; 39 km/h) surfaced, 9 kn (10 mph; 17 km/h) submerged|
|Range:||11,000 nmi (13,000 mi; 20,000 km) surfaced @ 10 kn (12 mph; 19 km/h) |
|Endurance:||48 hours @ 2 kn (2.3 mph; 3.7 km/h) submerged, 75 days on patrol|
|Test depth:||300 ft (91 m) |
|Complement:||6 officers, 54 enlisted|
|Armament:||10 × 21-inch (533 mm) torpedo tubes
(six forward, four aft)
24 torpedoes 
1 × 3-inch (76 mm) / 50 caliber deck gun 
Bofors 40 mm and Oerlikon 20 mm cannon
USS Darter (SS-227), a Gato-class submarine, was the first ship of the United States Navy to be named for the darter, any of many small American fresh-water fishes, closely related to the perch family.
Her keel was laid down on 20 October 1942 by the Electric Boat Company of Groton, Connecticut. She was launched on 6 June 1943 (sponsored by Mrs. E. B. Wheeler), and commissioned on 7 September 1943, Commander William Shirley Stovall, Jr. in command.
Darter put out from New London, Connecticut on 31 October 1943 for Pearl Harbor, arriving on 26 November. On 21 December, she cleared harbor on her first war patrol, bound for the heavily traveled shipping lanes south and west of Truk. This patrol was twice interrupted for repairs, at Pearl Harbor from 29 December 1943–3 January 1944, and at Tulagi and Milne Bay from 30 January–8 February. She performed a reconnaissance of Eniwetok on 12 January, and the next day scored a torpedo hit on a large ship, only to receive a severe depth-charging from her target’s escorts. She stood by on patrol during the carrier air strikes on Truk of 16–17 February, then fueled at Milne Bay on her way to refit at Brisbane from 29 February-17 March.
On her way to her second war patrol north of Western New Guinea and south of Davao, Darter topped off fuel at Milne Bay on 21–22 March. On 30 March, she sank a cargo ship, then patrolled off New Guinea during Allied landings on its coast. She put in to Darwin to refuel on 29–30 April, then returned to her patrol area until 23 May, when she arrived at Manus Island. Refitted, she put out for action waters once more on 21 June on her third war patrol off Halmahera and Mindanao. She sank Tsugaru off Morotai on 29 June, and again endured a heavy depth charge barrage as a result of her attack.
Returning to Brisbane on 8 August, Darter cleared on her fourth and last war patrol. She searched the Celebes Sea and South China Sea, returned to Darwin to fuel and make minor repairs on 10 September, and put back to the Celebes Sea. She put in to Mios Woendi on 27 September for additional fuel, and sailed on 1 October with Dace to patrol the South China Sea in coordination with the forthcoming invasion of Leyte. She attacked a tanker convoy on 12 October, and on 21 October headed with Dace for Balabac Strait to watch for Japanese shipping moving to reinforce the Philippines or attack the landing forces.
In the outstanding performance of duty which was to bring both submarines the Navy Unit Commendation, Darter and Dace made contact with the Japanese Center Force approaching Palawan Passage on 23 October. Immediately, Darter flashed the contact report, one of the most important of the war, since the location of this Japanese task force had been unknown for some days. The two submarines closed the task force, and with attacks on the cruisers of Center Force, initiated the Battle of Surigao Strait phase of the decisive Battle for Leyte Gulf. Darter sank the cruiser Atago and seriously damaged tyhe cruiser Takao. With Dace, she tracked the damaged cruiser through the tortuous channels of Palawan Passage until just after midnight of 24–25 October when Darter grounded on Bombay Shoal .
As efforts to get the submarine off the shoal began, a Japanese destroyer closed, but then sailed on. With the tide receding, all Dace's and Darter's efforts to get her off failed. All confidential papers and equipment were destroyed, and the entire crew taken off to Dace. When the demolition charges planted in Darter failed to destroy her, Dace fired torpedoes which exploded on the reef due to the shallow water. Dace did, however, score 21 hits with her 3 in (76 mm) gun. Rock was called in and fired 10 torpedoes at Darter with similar lack of success. Finally, Nautilus arrived on 31 October and scored 55 hits with her 6 in (150 mm) guns. Her report states, "It is doubtful that any equipment in DARTER at 1130 this date would be of any value to Japan - except as scrap. Estimated draft of DARTER - 4 feet." Apparently, the Japanese got no use out of her, for her hulk was still remarkably intact in 1962.
Dace reached Fremantle safely with Darter's men on 6 November. In order to retain their high esprit d'corps, the entire Darter crew was ordered to take over Menhaden, then building at Manitowoc, Wisconsin.
In addition to the Navy Unit Commendation, Darter received four battle stars earned during her four war patrols, the last three of which were designated as "successful". She is credited with having sunk a total of 19,429 long tons (19,741 t) of Japanese shipping.