HMS Supreme

	HMS Supreme (P252)
History
United Kingdom
Name	HMS Supreme
Builder	Cammell Laird & Co Limited, Birkenhead
Laid down	15 February 1943
Launched	24 February 1944
Commissioned	20 May 1944
Fate	broken up July 1950
Badge
General characteristics
Class and type	S-class submarine
Displacement	814 long tons (827 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 1 in (4.3 m)
Installed power	1,900 bhp (1,400 kW) (diesel); 1,300 hp (970 kW) (electric);
Propulsion	2 × diesel engines ; 2 × electric motors ;
Speed	14.75 knots (27.32 km/h; 16.97 mph) surfaced; 9 knots (17 km/h; 10 mph) submerged;
Range	7,500 nmi (13,900 km; 8,600 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	350 feet (106.7 m)
Complement	48
Armament	6 × bow 21 in (533 mm) torpedo tubes ; 1 × 4-inch (102 mm) deck gun ;

Last updated January 17, 2022

HMS Supreme was a S-class submarine of the third batch built for the Royal Navy during World War II. She survived the war and was sold for scrap in 1950.

Design and description

The last 17 boats of the third batch were significantly modified from the earlier boats. They had a stronger hull, carried more fuel and their armament was revised. 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 1 inch (4.3 m). They displaced 814 long tons (827 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 350 feet (106.7 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.^[3] They could reach 14.75 knots (27.32 km/h; 16.97 mph) on the surface and 9 knots (17 km/h; 10 mph) underwater.^[1] On the surface, the third batch boats had a range of 7,500 nautical miles (13,900 km; 8,600 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]

Supreme was armed with six 21 inch (533 mm) torpedo tubes in the bow. She carried six reload torpedoes for a grand total of a dozen torpedoes. Twelve mines could be carried in lieu of the torpedoes. The boat was also equipped with a 4-inch (102 mm) deck gun.^[1]

Construction and career

HMS Supreme was built by Cammell Laird and launched on 24 February 1944. So far she has been the only ship of the Royal Navy to bear the name Supreme. She survived the Second World War, spending most of it in the Pacific Far East, where she sank thirteen Japanese sailing vessels, six Japanese coasters, a Japanese tug and a barge, and a small unidentified Japanese vessel. Supreme also attacked what is thought to be a Japanese auxiliary patrol vessel.^[4]Supreme was eventually paid off and broken up at Troon in July 1950.

Notes

1 2 3 Chesneau, p. 52
1 2 McCartney, p. 7
↑ Bagnasco, p. 110
↑ HMS Supreme, 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. 129. Oxford, UK: Osprey. ISBN 1-84603-007-2.

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[gg9-1] 1 2 3 Chesneau, p. 52

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

[3] Bagnasco, p. 110

[4] HMS Supreme, Uboat.net

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