HMS Vanguard (S28)

<tr valign=top><td>Commissioned:</td><td>14 August 1993</td></tr>

<tr valign=top><td>Homeport:</td><td>HMNB Clyde</td></tr>

<tr valign=top><td>Draught:</td><td>12 m</td></tr><tr valign=top><td>Propulsion:</td><td>1 × Rolls-Royce PWR2 nuclear reactor
2 × GEC turbines
1 × shaft pump jet
 27,500 hp (20.5 MW)
2 × auxiliary retractable propulsion motors
2 × W H Allen turbo generators
 6 MW
2 × Paxman diesel alternators
 2 × 2,700 hp (20.5 MW)</td></tr>

<tr valign=top><td>Range:</td><td>Essentially unlimited</td></tr>

<tr valign=top><td>Sensors and processing systems:</td><td>BAE Systems SCMS
Thales Underwater Systems Type 2054 composite sonar suite comprising:
 Type 2046 towed array sonar
 Type 2043 hull-mounted active and passive search sonar
 Type 2082 passive intercept and ranging sonar
1 × Kelvin Hughes Type 1007 I band navigation radar
1 × Pilkington Optronics CK51 search periscope
1 × Pilkington Optronics CH91 attack periscope</td></tr><tr valign=top><td>Electronic warfare and decoys:</td><td>Thales UPM intercept ESM
2 × Mk10 launchers for launching Type 2066 and Type 2071 decoys</td></tr><tr valign=top><td>Armament:</td><td>4 × 21 in (533 mm) torpedo tubes
16 × ballistic missile tubes
Spearfish torpedoes
16 × Lockheed Trident D5 SLBMs carrying up to 192 warheads</td></tr>