HMS Churchill (S46)

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Career RN Ensign
Name: HMS Churchill
Namesake: Winston Churchill
Laid down: 30 June 1967
Launched: 20 December 1968
Commissioned: 15 July 1970
Decommissioned: 28 February 1991
Fate: Awaiting disposal
Badge: HMS Churchill crest.jpg
General characteristics
Class & type: Churchill-class submarine
Displacement: 4,900 tonnes (4,823 long tons) submerged
Length: 86.9 m (285 ft 1 in)
Beam: 10.1 m (33 ft 2 in)
Draught: 8.2 m (26 ft 11 in)
Propulsion: 1 Rolls-Royce PWR nuclear reactor, 1 shaft
Speed: 28 knots (32 mph; 52 km/h) submerged
Complement: 103
Armament: 6 × 533 mm (21 in) torpedo tubes
Mark 8 torpedoes
Tigerfish torpedoes
RN Sub Harpoon missiles
For other ships of the same name, see HMS Churchill.

HMS Churchill was the first of three Churchill-class submarine nuclear fleet submarines that served with the Royal Navy.


Churchill was chosen to trial the first full-size submarine pump jet propulsion. Trials of a high-speed unit were followed by further trials with a low-speed unit, and these were successful enough for the same propulsion to be fitted in the rest of the class.[1] Later British submarine classes also featured the pump jet, although first-of-class vessels Swiftsure and Trafalgar were fitted with propellers at build.


  1. ^ Bud, Robert; Gummett, Philip (2002). Cold war, hot science: applied research in Britain's defence laboratories, 1945-1990. NMSI Trading Ltd. p. 166. ISBN 978-1-900747-47-9. 

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