| Navy | The Royal Navy |
| Type | Submarine |
| Class | S-1 |
| Pennant | P 553 |
| Built by | Bethlehem Steel Corp. (Quincy, Massachusetts, U.S.A.) |
| Ordered | |
| Laid down | 19 Dec 1918 |
| Launched | 18 Aug 1920 |
| Commissioned | 14 Sep 1942 |
| End service | 11 Jul 1944 |
| History | USS S-21 was transferred to the Royal Navy at New London on 14 September 1942. She remained in American waters, based at Halifax, Canada, as an anti-submarine warfare training boat. She was returned to the United States Navy at Philadelphia on 11 July 1944. She was sunk as a target off New England on 23 March 1945. |
| Former name | S-21 |
Commands listed for HMS P 553 (P 553)
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 | Lt. Leslie Frederick Lewis Hill, RNR | 28 Jul 1942 | 18 Aug 1943 |
| 2 | T/Lt. Roy Edmund Youngman, RNR | 18 Aug 1943 | 11 Jul 1944 |
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.
Notable events involving P 553 include:
30 Sep 1942
HMS P 553 (Lt. L.F.L. Hill, RNR) departed New London, Connecticut, USA for Halifax, Canada. She was escorted by HMCS Fennel (T/Lt. R.B. Warwick, RCNVR).