HMS Spark

History
United Kingdom
Name	HMS Spark
Builder	Scotts, Greenock
Laid down	10 October 1942
Launched	28 December 1943
Commissioned	28 April 1944
Fate	broken up October 1950
Badge
General characteristics
Class and type	S-class submarine
Displacement	842 long tons (856 t) surfaced; 990 long tons (1,010 t) submerged;
Length	217 ft (66.1 m)
Beam	23 ft 9 in (7.2 m)
Draught	14 ft 8 in (4.5 m)
Installed power	1,900 bhp (1,400 kW) (diesel); 1,300 hp (970 kW) (electric);
Propulsion	2 × diesel engines ; 2 × electric motors ;
Speed	15 knots (28 km/h; 17 mph) surfaced; 10 knots (19 km/h; 12 mph) submerged;
Range	6,000 nmi (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph) surface; 120 nmi (220 km; 140 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth	300 feet (91.4 m)
Complement	48
Armament	7 × 21 in (533 mm) torpedo tubes (6 bow, 1 stern); 1 × 3-inch (76 mm) deck gun ;

Last updated April 10, 2023

HMS Spark (pennant number P236) was a S-class submarine of the third batch built for the Royal Navy during World War II. She survived the war and was scrapped in 1950.

Design and description

The third batch was slightly enlarged and improved over the preceding second batch of the S-class. The submarines had a length of 217 feet (66.1 m) overall, a beam of 23 feet 9 inches (7.2 m) and a draft of 14 feet 8 inches (4.5 m). They displaced 842 long tons (856 t) on the surface and 990 long tons (1,010 t) submerged.^[1] The S-class submarines had a crew of 48 officers and ratings. They had a diving depth of 300 feet (91.4 m).^[2]

For surface running, the boats were powered by two 950- brake-horsepower (708 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 650-horsepower (485 kW) electric motor. They could reach 15 knots (28 km/h; 17 mph) on the surface and 10 knots (19 km/h; 12 mph) underwater.^[3] On the surface, the third batch boats had a range of 6,000 nautical miles (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph) and 120 nmi (220 km; 140 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged.^[2]

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.^[4]

Construction and career

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.^[5] 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 Myōkō in Singapore Harbour as part of Operation Struggle.^[5]

Notes

↑ Chesneau, p. 51
1 2 McCartney, p. 7
↑ Bagnasco, p. 110
↑ Chesneau, pp. 51–52
1 2 HMS Spark, Uboat.net

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References

Akermann, Paul (2002). Encyclopaedia of British Submarines 1901–1955 (reprint of the 1989 ed.). Penzance, Cornwall: Periscope Publishing. ISBN 1-904381-05-7.
Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-962-6.
Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.
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.
McCartney, Innes (2006). British Submarines 1939–1945. New Vanguard. Vol. 129. Oxford, UK: Osprey. ISBN 1-84603-007-2.

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[gg9-1] Chesneau, p. 51

[i7-2] 1 2 McCartney, p. 7

[3] Bagnasco, p. 110

[4] Chesneau, pp. 51–52

[HMS_Spark-5] 1 2 HMS Spark, Uboat.net

[1]

[2]

[3]

[4]

[5]

History

United Kingdom
Name	HMS Spark
Builder	Scotts, Greenock
Laid down	10 October 1942
Launched	28 December 1943
Commissioned	28 April 1944
Fate	broken up October 1950
Badge
General characteristics
Class and type	S-class submarine
Displacement	842 long tons (856 t) surfaced 990 long tons (1,010 t) submerged
Length	217 ft (66.1 m)
Beam	23 ft 9 in (7.2 m)
Draught	14 ft 8 in (4.5 m)
Installed power	1,900 bhp (1,400 kW) (diesel) 1,300 hp (970 kW) (electric)
Propulsion	2 × diesel engines 2 × electric motors
Speed	15 knots (28 km/h; 17 mph) surfaced 10 knots (19 km/h; 12 mph) submerged
Range	6,000 nmi (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph) surface; 120 nmi (220 km; 140 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth	300 feet (91.4 m)
Complement	48
Armament	7 × 21 in (533 mm) torpedo tubes (6 bow, 1 stern) 1 × 3-inch (76 mm) deck gun