Allied Warships

HMS Sennen (Y 21)

Sloop of the Banff class

NavyThe Royal Navy
PennantY 21 
Built byBethlehem Shipbuilding Corp. (Quincy, Massachusetts, U.S.A.) 
Laid down23 May 1928 
Launched11 Oct 1928 
Commissioned12 May 1941 
End service27 Mar 1946 

Returned to the United States on 27 March 1946. Her recommissioning was cancelled and she was sold on 25 March 1948.

Former nameUSCGC Champlain

Commands listed for HMS Sennen (Y 21)

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1Lt.Cdr. David Charles Kinloch, RNJun 194111 Nov 1941
2Lt.Cdr. Rider Stewart Abram, RN11 Nov 194112 Feb 1943
3Lt.Cdr. Frederick Harold Thornton, RNR12 Feb 19438 May 1945
4A/Lt.Cdr. Bernard Morland Skinner, RN8 May 194516 Feb 1946

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Notable events involving Sennen include:

19 May 1943
German U-boat U-954 was sunk in the North Atlantic south-east of Cape Farewell, Greenland in position 54°54'N, 34°19'W, by depth charges from the British frigate HMS Jed (Lt.Cdr. R.C. Freaker, DSO, RNR) and the British sloop HMS Sennen (Lt.Cdr. F.H. Thornton, DSC, RNR).

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