Data Quality82%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the ballistic missile submarines (ssbn) category.
01 / Overview
Vanguard-class submarine
Country
Prime contractor
Production
1993–1999
Quantity
4
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
BALLISTIC MISSILE SUBMARINES (SSBN) · POST-COLD WAR
1
PERFORMANCE/PRICE
75
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the ballistic missile submarines (ssbn) category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
- Submarine TypeSSBN
- Builder / ShipyardVickers Shipbuilding and Engineering
- Commissioned1993
- Boats in Class4
- In ServiceYes
◈Displacement & Dimensions4MOD.4
- Submerged Displacement15,900 t
- Length149.9 m
- Beam12.8 m
- Draft12 m
▣Propulsion7MOD.7
- PropulsionNuclear
- Reactor TypeRolls‑Royce PWR2
- Nuclear-PoweredYes
- Air-Independent Propulsion (AIP)No
- Propulsor Typepump‑jet
- Top Speed (surfaced)12 kn
- Top Speed (submerged)25 kn
◇Diving & Endurance1MOD.1
- Complement (crew)132
◆Armament5MOD.5
- Torpedo Tubes4
- Torpedo Tube Diameter533 mm
- Cruise MissilesNo
- Ballistic Missiles (SLBM)Yes
- SLBM Count16
▤Sensors5MOD.5
- Bow SonarThales Type 2043 hull‑mounted active/passive search sonar
- Towed Array SonarYes
- Surface-Search RadarKelvin Hughes Type 1007 I‑band navigation radar
- ESM / ELINT SuiteYes
- Combat SystemSMCS (Submarine Command System)
⬢Stealth1MOD.1
▲Production2MOD.2
- First of Class1994
- Operators1
◎Fleet Status8MOD.8
- Completed4
- Active4
- Under Construction0
- Planned0
- Cancelled0
- Lost0
- Retired0
- Preserved0
03 / History
SERVICE LIFESPANStill in Service
- 1993Production started
- 1999Production ended
33
years in service
6
years in production
4
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
BALLISTIC MISSILE SUBMARINES (SSBN) RANKING Ballistic Missile Submarines (SSBN) · Post-Cold War
MASS RANKINGSMASS ↗
3BALLISTIC MISSILE SUBMARINES (SSBN)1POST-COLD WAR · BALLISTIC MISSILE SUBMARINES (SSBN)2UNITED KINGDOM · ALL WEAPONS6PERFORMANCE/PRICE · BALLISTIC MISSILE SUBMARINES (SSBN)
ⓘ Rankings are within theBallistic Missile Submarines (SSBN)category.
📖 TERMS ON THIS PAGE5terms
Ballistic missiles are rocket‑propelled weapons that follow a ballistic trajectory after launch, delivering warheads over long distances; submarine‑launched variants (SLBMs) are fired from submerged submarines.
Electronic Support Measures/ELectronic INTelligence suite: a sensor system on submarines that detects, identifies, and locates radar and communication emissions for passive threat assessment and tactical advantage.
Relating to or using nuclear energy, typically fission, for propulsion or power generation in military vessels.
A pump-jet propulsor is a type of propulsion system used in submarines, utilizing a pump-jet to generate thrust.
A system of hydrophones towed behind a vessel to detect submarines and torpedoes, minimizing interference from the ship's self-noise.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources