| Navy | The US Navy |
| Type | Submarine |
| Class | Gato |
| Pennant | 274 |
| Built by | Manitowoc Shipbuilding Co. (Manitowoc, Wisconsin, U.S.A.) |
| Ordered | |
| Laid down | 23 Dec 1942 |
| Launched | 20 Jun 1943 |
| Commissioned | 26 Oct 1943 |
| End service | 13 Sep 1969 |
| Loss position | |
| History | Decommissioned 1 May 1946. |
Commands listed for USS Rock (274)
Please note that we're still working on this section.
| Commander | From | To | ||
| 1 | Cdr. John Jay Flachsenhar, USN | 26 Oct 1943 | Feb 1945 | |
| 2 | Cdr. Robert Allan Keating, Jr., USN | Mar 1945 | May 1945 | |
| 3 | Lt.Cdr. Theodore Montayne Ustick, USN | < Aug 45 | Aug 45 ? | |
You can help improve our commands section
Click here to Submit events/comments/updates for this vessel.
Please use this if you spot mistakes or want to improve this ships page.
Noteable events involving Rock include:
2 Jan 1944
With her initial training completed USS Rock (Cdr. John J. Flachsenhar) departs the Panama Canal Zone bound for Pearl Harbour.
8 Feb 1944
USS Rock (Cdr. J.J. Flachsenhar) departs Pearl Harbour for her 1st war patrol. She is ordered to patrol off the Ryukyu Islands.
29 Feb 1944
USS Rock (Cdr. J.J. Flachsenhar) is damaged by surface gunfire and depth charges off the Ryukyu Islands in position 25º33'N, 130º42'E and is forced to terminate her patrol. (see map)
13 Mar 1944
USS Rock (Cdr. J.J. Flachsenhar) ends her 1st war patrol at Pearl Harbour.
4 Apr 1944
USS Rock (Cdr. J.J. Flachsenhar) departs Pearl Harbour for her 2nd war patrol. She is ordered to patrol off Honshu in Japanese home waters.
28 May 1944
USS Rock (Cdr. J.J. Flachsenhar) ends her 2nd war patrol at Majuro.
22 Jun 1944
USS Rock (Cdr. J.J. Flachsenhar) departs Majuro for her 3rd war patrol. She is ordered to patrol in the Luzon Strait.
12 Aug 1944
USS Rock (Cdr. J.J. Flachsenhar) ends her 3rd war patrol at Pearl Harbour.
9 Sep 1944
USS Rock (Cdr. J.J. Flachsenhar) departs Pearl Harbour for her 4th war patrol. She is ordered to patrol in the South China Sea.
26 Oct 1944
USS Rock (Cdr. J.J. Flachsenhar) torpedoes and sinks the Japanese merchant tanker Takasago Maru No.7 (834 GRT) near Balabac Strait in position 10º18'N, 117º47'E. (see map)
8 Nov 1944
USS Rock (Cdr. J.J. Flachsenhar) ends her 4th war patrol at Fremantle, Australia.
14 Dec 1944
USS Rock (Cdr. J.J. Flachsenhar) departs Fremantle for her 5th war patrol. She is ordered to patrol in the South China Sea.
14 Feb 1945
USS Rock (Cdr. J.J. Flachsenhar) ends her 5th war patrol at Fremantle.
7 Mar 1945
USS Rock (Cdr. Robert A. Keating, Jr.) departs Fremantle for her 6th war patrol. She is ordered to patrol in the Luzon Strait.
9 Mar 1945
USS Rock (Cdr. R.A. Keating, Jr.) picks up 15 survivors from the American merchant Peter Silvester that was torpedoed and sunk on 6 February by the German submarine U-862 south-west of Australia in position 34º19'S, 99º37'E.
29 Apr 1945
USS Rock (Cdr. R.A. Keating, Jr.) ends her 6th war patrol at Saipan. She is now sent to the Hunters Point Navy Yard for a major overhaul.
14 May 1945
USS Rock (Cdr. R.A. Keating, Jr.) arrives at the Hunters Point Navy Yard.
7 Aug 1945
With her overhaul completed USS Rock (Lt.Cdr. T.M. Ustick) departs the US west coast boundfor Pearl Harbour.