Data Quality84%
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
Lafayette-class submarine
Country
Prime contractor
Production
1962–1964
Quantity
9
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
BALLISTIC MISSILE SUBMARINES (SSBN) · EARLY COLD WAR
2
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
◎Identification7MOD.7
- Hull ClassificationSSBN
- Submarine Typeballistic missile submarine
- Builder / ShipyardGeneral Dynamics Electric Boat, Mare Island Naval Shipyard, Portsmouth Naval Shipyard, Newport News Shipbuilding and Drydock Company
- Laid Down1961
- Commissioned1963
- Boats in Class9
- In ServiceNo
◈Displacement & Dimensions5MOD.5
- Surfaced Displacement7,325 t
- Submerged Displacement8,251 t
- Length129.54 m
- Beam10.06 m
- Draft8.53 m
▣Propulsion8MOD.8
- PropulsionNuclear
- Reactor TypeS5W PWR
- Nuclear-PoweredYes
- Air-Independent Propulsion (AIP)No
- Shaft Power11,185 kW
- Propulsor Typepropeller
- Top Speed (surfaced)20 kn
- Top Speed (submerged)21 kn
◇Diving & Endurance2MOD.2
- Test Depth396.24 m
- Complement (crew)140
◆Armament7MOD.7
- Torpedo Tubes4
- Torpedo Tube Diameter533 mm
- Cruise MissilesNo
- Ballistic Missiles (SLBM)Yes
- SLBM Count16
- Anti-Ship MissilesNo
- Mine-Laying CapableNo
▤Stealth1MOD.1
⬢Production2MOD.2
- First of Class1963
- Operators1
▲Fleet Status8MOD.8
- Completed9
- Active0
- Under Construction0
- Planned9
- Cancelled0
- Lost0
- Retired9
- Preserved0
03 / History
SERVICE LIFESPANStill in Service
- 1961Entered service
- 1962Production started
- 1964Production ended
64
years in service
2
years in production
9
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
BALLISTIC MISSILE SUBMARINES (SSBN) RANKING Ballistic Missile Submarines (SSBN) · Early Cold War
MASS RANKINGSMASS ↗
21BALLISTIC MISSILE SUBMARINES (SSBN)2EARLY COLD WAR · BALLISTIC MISSILE SUBMARINES (SSBN)630UNITED STATES · ALL WEAPONS6PERFORMANCE/PRICE · BALLISTIC MISSILE SUBMARINES (SSBN)
ⓘ Rankings are within theBallistic Missile Submarines (SSBN)category.
📖 TERMS ON THIS PAGE2terms
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.
Relating to or using nuclear energy, typically fission, for propulsion or power generation in military vessels.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources