HMS Spark

The third batch was slightly enlarged and improved over the preceding second batch of the S-class. The submarines had a length of {{convert|217|ft|m|1}} overall, a beam of {{convert|23|ft|9|in|m|1}} and a draft of {{convert|14|ft|8|in|m|1}}. They displaced {{convert|842|LT|t}} on the surface and {{convert|990|LT|t}} submerged.Chesneau, p. 51 The S-class submarines had a crew of 48 officers and ratings. They had a diving depth of {{convert|300|ft|1}}.McCartney, p. 7

For surface running, the boats were powered by two {{convert|950|bhp|lk=in|0|adj=on}} diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a {{convert|650|hp|0|adj=on}} electric motor. They could reach {{convert|15|kn|lk=in}} on the surface and {{convert|10|kn}} underwater.Bagnasco, p. 110 On the surface, the third batch boats had a range of {{convert|6000|nmi|lk=in}} at {{convert|10|kn}} and {{convert|120|nmi|abbr=on}} at {{convert|3|kn}} submerged.

The boats were armed with seven 21 inch (533 mm) torpedo tubes. A half-dozen of these were in the bow and there was one external tube in the stern. They carried six reload torpedoes for the bow tubes for a grand total of thirteen torpedoes. Twelve mines could be carried in lieu of the internally stowed torpedoes. They were also armed with a 3-inch (76 mm) deck gun.Chesneau, pp. 51–52

HMS Spark was built by Scotts, of Greenock and launched on 28 December 1943. Thus far she has been the only ship of the Royal Navy to bear the name Spark. She survived the Second World War, spending between December 1944 and July 1945 with the Eastern Fleet, arriving at Trincomalee on 21 October 1944. She went on to sink two Japanese sailing vessels, three Japanese coasters, a barge and a tug. Another coaster was forced ashore on Panjang Island. Spark was attacked by an enemy escort which dropped sixteen depth charges, but managed to escape damage. She returned to the UK in October 1945.[http://uboat.net/allies/warships/ship/3453.html HMS Spark], Uboat.net She was sold on 28 October 1949. Spark was broken up at Faslane in October 1950.

Spark acted as tow for the midget submarine XE-1, which was assigned to attack the Japanese heavy cruiser {{ship|Japanese cruiser|Myōkō||2}} in Singapore Harbour as part of Operation Struggle.

{{Reflist|30em}}

• {{cite book|last=Akermann|first=Paul|title=Encyclopaedia of British Submarines 1901–1955|edition=reprint of the 1989|year=2002|publisher=Periscope Publishing|location=Penzance, Cornwall|isbn=1-904381-05-7}}
• {{cite book|last=Bagnasco |first=Erminio |title=Submarines of World War Two |year=1977 |publisher=Naval Institute Press |location=Annapolis, Maryland |isbn=0-87021-962-6}}
• {{cite book|title=Conway's All the World's Fighting Ships 1922–1946|editor1-last=Chesneau|editor1-first=Roger|publisher=Conway Maritime Press|location=Greenwich, UK|year=1980|isbn=0-85177-146-7}}
• {{Cite Colledge2006}}
• {{cite book|last=McCartney|first=Innes|location=Oxford, UK|title=British Submarines 1939–1945|series=New Vanguard|volume=129|year=2006|publisher=Osprey|isbn=1-84603-007-2}}

{{British S class submarine}}

{{DEFAULTSORT:Spark}}

Category:British S-class submarines (1931)

Category:1943 ships

Category:World War II submarines of the United Kingdom

Category:Royal Navy ship names