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SSBN Vanguard Class

Crew

135

Builder

Vickers Shipbuilding and Engineering Limited (now BAE Systems Marine)

Operator

Royal Navy

Propulsion

1 x Rolls-Royce PWR2 nuclear reactor, 2 x GEC turbines

Length

149.9m

Beam

12.8m

Height

12m

Displacement

16,000t

Submerged Speed

25 knots

Torpedo Tubes

16 missile tubes capable of firing Trident D5 missiles; four torpedo tubes capable of firing Spearfish torpedoes

Torpedo

Spearfish

Speed

102km/h (55kt)

Range

Up to 54km (30nm)

Warhead

Directed energy

Sonar

Bow, flank, active intercept and towed arrays attack and search periscopes collision avoidance radar, electronic warfare equipment

Trident II D5 Missiles

16

Range

7,360km

Speed

Supersonic

Length

13m

Diameter

2m

Weight

58.5t

Circle of Equal Probabilty (CEP)

120m

MIRVs per Missile

Up to 12

MIRV Warhead

100kt to 120kt
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