HMS Seahorse (98 S)
Submarine of the S class
|Navy||The Royal Navy|
|Built by||Chatham Dockyard (Chatham, U.K.)|
|Ordered||16 Mar 1931|
|Laid down||14 Sep 1931|
|Launched||15 Nov 1932|
|Commissioned||2 Oct 1933|
|Lost||7 Jan 1940|
|Loss position||54.19N, 07.30E|
Seahorse (Lt. Dennis Staunton Massy-Dawson, RN) sailed from Rosyth to patrol off Helgoland on 26 Deceber 1939.
Sunk after being attacked and depth charged by ships from the German 1st Minesweeping Flotilla on 7 January 1940 about 15 nautical miles north-west of Helgoland in position 54º19'N, 07º30'E.
It is however also possible that she was rammed and sunk by the German Sperrbrecher IV/Oakland south east of Helgoland on 29 December 1939.
HMS Seahorse was never heard from after sailing from Blyth on 26 December 1939 for patrol off western Jutland. Her operational area was to be initially off Helgoland then move to the mouth of the Elbe on 30 December and return to Blyth on 9 January 1940.
Commands listed for HMS Seahorse (98 S)
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|1||Lt. Dennis Staunton Massy-Dawson, RN||15 Apr 1939||7 Jan 1940|
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Noteable events involving Seahorse include:
17 Sep 1939
HMS Seahorse (Lt. D.S. Massy-Dawson, RN) fires four torpedoes against German U-boat U-36 in the North Sea in position 56°42'N, 00°52'E. All torpedoes fired missed their target.