USS Rock file photo

USS Rock

CountryUnited States
Ship ClassGato-class Submarine
Hull NumberSS-274
BuilderManitowoc Shipbuilding Company, Manitowoc, Wisconsin, United States
Laid Down23 Dec 1942
Launched20 Jun 1943
Commissioned26 Oct 1943
Decommissioned13 Sep 1969
Displacement1549 tons standard; 2463 tons submerged
Length312 feet
Beam27 feet
Draft17 feet
MachineryFour General Motors Model 16-248 V16 diesel engines (5,400shp), four General Electric electric motors with reduction gears (2,740shp), two 126-cell Sargo batteries, two propellers
Speed21 knots
Range11,000nm at 10 knots surfaced, 48 hours at 2 knots submerged
Crew60
Armament6x533mm bow torpedo tubes, 4x533mm stern torpedo tubes, 24 torpedoes, 1x76mm 50cal gun
Submerged Speed9 knots
First Decommission1 May 1946
Recommissioned12 Oct 1953

Contributor: C. Peter Chen

USS Rock entered service in late 1943. After a month of shakedown training in Lake Michigan, she passed through the Chicago Drainage Canal (now Chicago Sanitary and Ship Canal) to Lockport, Illinois, United States, where she was entered into a floating drydock for transportation down the Mississippi River, arriving at New Orleans, Louisiana, United States on 29 Nov 1943. Arriving at Pearl Harbor, Hawaii, United States via the Panama Canal, she prepared for her first war patrol, which began on 8 Feb 1944. She made her first contact on 29 Feb, detecting a large Japanese convoy en route to Truk, Caroline Islands. While approaching on the surface under the cover of the dark night sky, however, she was detected by the escorting Japanese destroyer Asashimo. As the destroyer closed in to attack, searchlights illuminating her and 130-millimeter shells splashing around her, she fired a salvo of four stern torpedoes; none of the torpedoes hit the attacker. She dove, and consequently suffered a depth charge attack that lasted four hours. She survived the attack, but suffered extensive damage, thus she returned to Pearl Harbor for repairs. Her second war patrol, which lasted from Apr to May 1944, was uneventful. She departed Majuro on 22 Jun on her third war patrol as a member of a wolfpack, the other members being USS Tilefish and USS Sawfish. On 19 Jul, in the Luzon Strait between Taiwan, China and Luzon, Philippine Islands, she detected a convoy of seven Japanese transports escorted by three combat ships; she fired ten torpedoes and immediately dove to avoid attacks from escorts; she recorded six detonations, but could not determine whether she achieved any sinkings. Two days later, she detected another convoy consisted of six transports and four escorts; two of the four torpedoes fired detonated, but again evasion action caused her to be unable to confirm any sinkings. On 26 Oct, during her fourth war patrol in the South China Sea area, she finally was able to confirm a sinking after observing three of the six torpedoes fired hit Japanese tanker Takasago Maru No. 7; this would prove to be her only confirmed sinking. On 27 Oct, she scuttled the damaged submarine USS Darter at Bombay Shoal in the Spratly Islands about 75 kilometers north of the southwestern tip of Palawan, Philippine Islands to prevent Japanese capture. After a period of refitting, she departed Fremantle, Australia for her fifth war patrol on 14 Dec; during this patrol she rescued one downed airman from USS Lexington. During her sixth war patrol, she bombarded a Japanese radio station at Batan, Batanes Islands, Philippine Islands and claimed the sinking of a Japanese destroyer escort (which would not be confirmed). She arrived at San Francisco, California, United States for overhaul on 14 May 1945, not returning to Pearl Harbor until 7 Aug, by which date the Pacific War was entering its final days. After a visit at New Orleans, where she participated in the 1945 Navy Day celebrations, she sailed to New London, Connecticut, United States for inactivation. She was decommissioned in 1946 and was placed into the Atlantic Reserve Fleet.

In early 1951, USS Rock was towed from New London to the Philadelphia Naval Shipyard, Pennsylvania, United States to be converted into a radar picket submarine; her bow was extended by 9 meters to house a new combat information center and additional electronic equipment. Recommissioned back into service in late 1953, she performed training with Submarine Squadron 6 off the Virginia Capes on the east coast of the United States and then joined Submarine Squadron 5 in San Diego, California; with the latter squadron, she made several patrols in the western Pacific Ocean. By 1959, there was no more need for US Navy to maintain radar picket submarines, thus all such vessels, including USS Rock, were reclassified auxiliary general submarines. She was deployed to the western Pacific several more times in the 1960s. Between 11 Jul and 16 Aug 1969, she supported fleet training operations off Hawaii. She was decommissioned for the second and final time at Mare Island Naval Shipyard in California, United States.

Source: Wikipedia

Submarine USS Rock (SS-274) Interactive Map

USS Rock Operational Timeline

23 Dec 1942 Submarine Rock was laid down by the Manitowoc Shipbuilding Company in Wisconsin, United States.
20 Jun 1943 Submarine Rock was launched, sponsored by Mrs. B. O. Wells.
26 Oct 1943 USS Rock was commissioned into service with Commander John Jay Flachsenhar in command.
29 Nov 1943 USS Rock completed a journey down the Mississippi River and arrived at New Orleans, Louisiana, United States.
5 Dec 1943 USS Rock departed New Orleans, Louisiana, United States for the Panama Canal Zone.
2 Jan 1944 USS Rock departed Panama Canal Zone for Pearl Harbor, US Territory of Hawaii.
8 Feb 1944 USS Rock departed Pearl Harbor, US Territory of Hawaii for her first war patrol.
29 Feb 1944 USS Rock attacked a Japanese convoy en route to Truk, Caroline Islands, but was detected by destroyer Asashimo. She fired a salvo of four torpedoes at the destroyer (none hit) and dove. She was subjected to a four-hour depth charge attack that cause much damage, forcing her to return for repairs.
4 Apr 1944 USS Rock departed Pearl Harbor, US Territory of Hawaii for her second war patrol.
8 May 1944 USS Rock arrived at Majuro, Marshall Islands, ending her second war patrol.
22 Jun 1944 USS Rock departed Majuro, Marshall Islands for her third war patrol.
19 Jul 1944 USS Rock detected a Japanese convoy in the Luzon Strait and attacked with ten torpedoes. She recorded six detonations, but was not able to observe whether any of the ships sank.
21 Jul 1944 USS Rock detected a Japanese convoy in the Luzon Strait and attacked with four torpedoes. She recorded two detonations, but was not able to observe whether any of the ships sank.
27 Jul 1944 USS Rock changed course for Pearl Harbor, US Territory of Hawaii.
9 Sep 1944 USS Rock departed Pearl Harbor, US Territory of Hawaii for her fourth war patrol.
26 Oct 1944 USS Rock sank Japanese tanker Takasago Maru No. 7 with three torpedoes in the South China Sea.
27 Oct 1944 USS Rock fired nine torpedoes to scuttle the damaged submarine USS Darter on Bombay Shoal in the Spratly Islands; three hits were recorded.
14 Dec 1944 USS Rock departed Fremantle, Australia for her fifth war patrol.
7 Mar 1945 USS Rock departed Fremantle, Australia for her sixth war patrol.
27 Mar 1945 Before dawn, USS Rock fired six torpedoes at a Japanese destroyer escort; she claimed the target was sunk with one hit, but the sinking was not confirmed. In the late evening, USS Rock fired a torpedo at another Japanese destroyer; the torpedo missed.
6 Apr 1945 USS Rock made a night time surface torpedo attack on a schooner with three torepdoes; all torpedoes missed.
18 Apr 1945 USS Rock bombarded a Japanese radio station at Batan, Batanes Islands, Philippine Islands.
14 May 1945 USS Rock arrived at San Francisco, California, United States.
7 Aug 1945 USS Rock arrived at Pearl Harbor, US Territory of Hawaii.
27 Oct 1945 USS Rock participated in Navy Day celebrations in New Orleans, Louisiana, United States.
1 May 1946 USS Rock was decommissioned from service and was placed into the Atlantic Reserve Fleet.
18 Jul 1952 USS Rock was reclassified SSR-274.
12 Oct 1953 USS Rock was recommissioned into service at Philadelphia, Pennsylvania, United States.
23 Jul 1954 USS Rock departed San Diego, California, United States.
6 Jan 1956 USS Rock entered Mare Island Naval Shipyard in California, United States for overhaul.
23 May 1956 USS Rock completed her overhaul at Mare Island Naval Shipyard, California, United States.
31 Dec 1959 USS Rock was reclassified AGSS-274.
11 Jul 1969 USS Rock departed San Diego, California, United States for Hawaii, United States in support of fleet training operations.
13 Sep 1969 USS Rock was decommissioned for the second and final time at Mare Island Naval Shipyard in California, United States, and was struck from the US Naval Register.
17 Aug 1972 Submarine Rock was sold for scrap.

Photographs

Decommissioning ceremony of USS Bluegill, 7 Jul 1952; note USS Rock berthed next to herUSS Rock departing San Diego, California, United States for the western Pacific Ocean, 23 Jul 1954Submarine tender Nereus and Submarine Rescue Vessel Florikan with submarines Tunny, Cusk, Carbonero, Tilefish, Spinax, Rock, Remora, Catfish, and Volador, San Diego, California, US, date unknownUSS Rock at Mare Island Naval Shipyard, California, United States, 9 May 1956, photo 1 of 2
See all 10 photographs of Submarine USS Rock (SS-274)



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Visitor Submitted Comments

  1. Anonymous says:
    22 Dec 2012 12:30:08 PM

    Nephew, of Fredrick P. Graziani 1st Class Gunnersmate lost.Would like to know about any services plnnaed.We have over 20 family members here in New Hampshire who would like to travel to Key West , one nephew Fredrick P. Mome Lt. (Ret) is a retired Sub Sailor.Thanks,Michael Mone BMC, USCG (Ret)

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Submarine USS Rock (SS-274) Photo Gallery
Decommissioning ceremony of USS Bluegill, 7 Jul 1952; note USS Rock berthed next to her
See all 10 photographs of Submarine USS Rock (SS-274)



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