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
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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

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.