HMS Seahorse (98S)

HMS Seahorse
Career (UK)
Name:	HMS Seahorse
Builder:	Chatham Dockyard
Launched:	15 November 1932
Identification:	Pennant number: 98S
Fate:	Sunk 7 January 1940
Badge:
General characteristics
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)
Propulsion:	Twin diesel/electric
Speed:	13.75 knots surfaced 10 knots submerged
Complement:	36 officers and men
Armament:	6 × forward 21-inch torpedo tubes 12 × torpedoes 1 × 3-inch gun 1 × 20mm cannon 1 × .303-calibre machine gun

HMS Seahorse was a group one British S-class submarine that was lost at sea with all hands in Heligoland Bight, North Sea, probably on the 7 January 1940, during the Second World War.

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.^[1] 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.^[2]

See also

• List of shipwrecks in 1940

References

1. ↑ Submarine losses 1904 to present day, RN Submarine Museum, Gosport
2. ↑ HMS Seahorse, Uboot.net

• Colledge, J. J.; Warlow, Ben (2006) [1969]. 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. 

S-class submarines  Royal Navy First Group Seahorse Starfish Sturgeon Swordfish Second Group Salmon Sealion Seawolf Shark Snapper Spearfish Sterlet Sunfish Third Group P222 Safari Saga Sahib Sanguine Saracen Satyr Sceptre Scorcher Scotsman Scythian Sea Devil Seadog Sea Nymph Sea Rover Sea Scout Selene Seneschal Sentinel Seraph Shakespeare Shalimar Sibyl Sickle Sidon Simoom Sirdar Sleuth Solent Spark Spearhead Spirit Spiteful Splendid Sportsman Springer Spur Statesman Stoic Stonehenge Storm Stratagem Strongbow Stubborn Sturdy Stygian Subtle Supreme Surf Syrtis   Other operators  French Navy Saphir class Saphir Sibylle Sirène Sultane  Israeli Navy Rahav Tanin  Royal Netherlands Navy Zeehond  Portuguese Navy Narval Náutilo Neptuno  Soviet Navy V-1 Preceded by: Rainbow class Followed by: River class List of submarines of the Royal Navy List of submarine classes of the Royal Navy

Coordinates: 56°42′N 0°52′E / 56.700°N 0.867°E / 56.700; 0.867