  {|   {{infobox ship characteristics |hide header= |header caption=jane's fighting ships, 2004â2005. jane's information group limited. p. 794. isbn 0-7106-2623-1. |ship class=nuclear-powered ballistic missile submarine |ship type= |ship tonnage= |ship displacement=15,900 tonnes, submergedroyal navy vanguard class submarine, royalnavy.mod.uk |ship tons burthen= |ship length= |ship beam= |ship height= |ship draught= |ship draft= |ship depth= |ship hold depth= |ship decks= |ship deck clearance= |ship ramps= |ship ice class= |ship power= |ship propulsion= * 1 Ã rolls-royce pwr2 nuclear reactor * 2 Ã gec turbines;  * 1 Ã shaft, pump jet propulsor * 2 Ã auxiliary retractable propulsion motors * 2 Ã wh allen turbo generators&nbsp;(6 mw) * 2 Ã paxman diesel alternators;&nbsp; |ship sail plan= |ship speed=in excess of , submerged |ship range=only limited by food and maintenance requirements. |ship endurance= |ship test depth= |ship boats= |ship capacity= |ship troops= |ship complement=135 |ship crew= |ship time to activate= |ship sensors= * bae systems smcs * kelvin hughes type 1007 i-band navigation radar * thales underwater systems type 2054 composite sonar suite comprising:&nbsp; ** marconi/ferranti type 2046 towed array sonar&nbsp; ** type 2043 hull-mounted active and passive search sonar&nbsp; ** type 2082 passive intercept and ranging sonar * pilkington optronics ck51 search periscope * pilkington optronics ch91 attack periscope |ship ew= * two sse mk10 launchers for 
1990s_ships Ballistic_missile_submarines Nuclear-powered_ships Submarine_classes Vanguard-class_submarines