HMS Seahorse (98S)
|Launched:||15 November 1932|
|Identification:||Pennant number: 98S|
|Fate:||Sunk 7 January 1940|
|Displacement:||640 tons surfaced
935 tons submerged
|Length:||202 ft 6 in (61.7 m)|
|Beam:||24 ft (7.3 m)|
|Draught:||10 ft 6 in (3.2 m)|
|Speed:||13.75 knots surfaced
10 knots submerged
|Complement:||36 officers and men|
On 26 December 1939 she sailed from Blyth for patrol off the east coast of Denmark. Four days later she shifted position to the entrance of the Elbe. She did not return on her due date of 9 January 1940. It was first thought that she had been mined but German records, examined after the war, suggest she was the victim of the German First Minesweeper Flotilla which reported a sustained depth charge attack on an unidentified submarine on 7 January 1940. 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.
- Colledge, J. J.; Warlow, Ben (2006) . Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475.
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