Allied Warships

HMS P 553 (P 553)

Submarine of the S-1 class

NavyThe Royal Navy
PennantP 553 
Built byBethlehem Steel Corp. (Quincy, Massachusetts, U.S.A.) 
Laid down19 Dec 1918 
Launched18 Aug 1920 
Commissioned14 Sep 1942 
End service11 Jul 1944 

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 nameS-21

Commands listed for HMS P 553 (P 553)

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1Lt. Leslie Frederick Lewis Hill, RNR28 Jul 194218 Aug 1943
2T/Lt. Roy Edmund Youngman, RNR18 Aug 194311 Jul 1944

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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).

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