HMS Subtle in April 1944
History
United Kingdom
NameHMS Subtle
BuilderCammell Laird & Co Limited, Birkenhead
Laid down1 February 1943
Launched27 January 1944
Commissioned16 April 1944
Fatebroken up in July 1959
BadgeBadge
General characteristics
Class and typeS-class submarine
Displacement
  • 814 long tons (827 t) surfaced
  • 990 long tons (1,010 t) submerged
Length217 ft (66.1 m)
Beam23 ft 9 in (7.2 m)
Draught14 ft 1 in (4.3 m)
Installed power
  • 1,900 bhp (1,400 kW) (diesel)
  • 1,300 hp (970 kW) (electric)
Propulsion
Speed
  • 14.75 knots (27.32 km/h; 16.97 mph) surfaced
  • 9 knots (17 km/h; 10 mph) submerged
Range7,500 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 depth350 feet (106.7 m)
Complement48
Armament

HMS Subtle 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 1959.

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 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 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]

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 Subtle was constructed by Cammell Laird and launched on 27 January 1944. She survived the Second World War, spending the period between December 1944 and May 1945 with the Eastern Fleet. Here, she sank a Japanese coaster and six sailing vessels. Together with her sister, HMS Statesman, she helped in the tracking and sinking of the Japanese heavy cruiser Haguro.[5] Subtle was finally sold off to be broken up in July 1959 in Charlestown.

Notes

  1. 1 2 Chesneau, p. 51
  2. 1 2 McCartney, p. 7
  3. ↑ Bagnasco, p. 110
  4. ↑ Chesneau, pp. 51–52
  5. ↑ HMS Subtle, Uboat.net

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.

7°28′N 94°56′E / 7.467°N 94.933°E / 7.467; 94.933

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