newest nuclear-powered Fleet submarines of british navy

Astute class submarine
will not need to be refuelled during the boat's 25 year service. Since the submarine can purify water and air, she will be able to circumnavigate the planet without resurfacing. The main limit is that the submarine will only be able to carry three months supply of food for 98 officers and enlisted men
Name: HMS Astute
Ordered: March 1997
Builder: BAE Systems Submarine Solutions
Laid down: January 2001
Launched: 8 June 2007
Commissioned: 2009 (planned)
Status: On trials
General characteristics
Displacement: 7800 tonnes submerged
Length: 97 m (323 ft)
Beam: 11.3 m (37 ft)
Draught: 10 m (33 ft)
Propulsion: Rolls-Royce PWR2 reactor (with full submarine life core), MAN (Paxman) 1900 kilowatt diesel generator
Speed: 29 knots (54 km/h) submerged
Range: circumnavigation 40 times without refuelling
Complement: 98 officers and enlisted, capacity of 109 (All Male)
Sensors and
processing systems: Thales Underwater Systems Sonar 2076, Atlas Hydrographic DESO 25 depth-finding echosounder, Two Thales Optronics CM010 periscopes, Raytheon Systems Limited Successor IFF system
Armament: six 21 inch (533 mm) torpedo tubes, 38 Spearfish torpedoes, UGM-84 Harpoon and Tomahawk Block IV cruise missiles, naval mines