| Navy | The US Navy |
| Type | Patrol craft |
| Class | PC-461 |
| Pennant | PC-561 |
| Built by | Jeffersonville Boat and Machine Co. (Jeffersonville, Indiana, U.S.A.) |
| Ordered | 1 Apr 1941 |
| Laid down | 30 Jan 1942 |
| Launched | 1 May 1942 |
| Commissioned | 11 Jul 1942 |
| End service | 30 Nov 1943 |
| History | Transferred to Brazil on 30 November 1943 being renamed Graúna. |
| Career notes | To Brasil as Graúna |
Commands listed for USS PC-561 (PC-561)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | |
| 1 | William A Dobbs, USNR | 11 Jul 1942 | 9 Jan 1943 |
| 2 | Ens. Arthur Freeburn Chace, Jr., USNR | 9 Jan 1943 | Mid 1943 |
| 3 | Lt. Paul Campbell, Jr., USNR | Mid 1943 | 17 Oct 1943 |
| 4 | Shull Bonsall, USNR | 17 Oct 1943 | 5 Nov 1943 |
| 5 | P H Tomlinson, USNR | 5 Nov 1943 | 30 Nov 1943 |
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