Swiftsure class submarine

The Royal Navy's Swiftsure class of nuclear fleet submarines (SSNs) includes five boats: Sceptre (S104), Spartan (S105)[?], Splendid (S106)[?], Sovereign (S108)[?], and Superb (S109)[?].

General Characteristics

• Displacement: 4400 tons standard; 4900 tons submerged
• Length: 83 meters
• Beam: 9.8 meters
• Draught: 8.5 meters
• Complement: 13 officers, 103 ratings
• Armament: 5 tubes capable of firing:
  • Spearfish torpedoes
  • Tigerfish torpedoes
  • RN Sub Harpoon missiles
  • Tomahawk missiles (Splendid[?] only)
• Sensors:
  • sonar (bow, flank, active intercept, and towed arrays)
  • periscopes (attack and search)
  • collision avoidance radar