Data Quality83%
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
Delta I-class submarine
Country
Production
1965–
Quantity
18
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
BALLISTIC MISSILE SUBMARINES (SSBN) · COLD WAR
9
PERFORMANCE/PRICE
70
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 / ShipyardKomsomolsk-on-Amur Shipyard, Severodvinsk
- Laid Down1965
- Commissioned1972
- Boats in Class18
- In ServiceNo
◈Displacement & Dimensions5MOD.5
- Surfaced Displacement7,800 t
- Submerged Displacement10,000 t
- Length139 m
- Beam12 m
- Draft9 m
▣Propulsion8MOD.8
- PropulsionNuclear
- Reactor Typepressurized water-cooled reactor
- Nuclear-PoweredYes
- Air-Independent Propulsion (AIP)No
- Shaft Power38,700 kW
- Propulsor Typesteam turbines
- Top Speed (surfaced)12 kn
- Top Speed (submerged)25 kn
◇Diving & Endurance1MOD.1
- Complement (crew)120
◆Armament8MOD.8
- Torpedo Tubes6
- Torpedo Tube Diameter533 mm
- VLS Cells0
- Cruise MissilesNo
- Ballistic Missiles (SLBM)Yes
- SLBM Count12
- Anti-Ship MissilesNo
- Mine-Laying CapableNo
▤Sensors1MOD.1
- Combat SystemD-9 launch system, Tobol-B navigation system, Cyclone-B satellite navigation system
⬢Stealth1MOD.1
▲Production2MOD.2
- First of Class1972
- Operators1
◎Fleet Status7MOD.7
- Completed18
- Active0
- Under Construction0
- Cancelled0
- Lost0
- Retired18
- Preserved0
03 / History
SERVICE LIFESPANStill in Service
- 1958Entered service
- 1965Production started
61
years in service
18
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
BALLISTIC MISSILE SUBMARINES (SSBN) RANKING Ballistic Missile Submarines (SSBN) · Cold War
MASS RANKINGSMASS ↗
17BALLISTIC MISSILE SUBMARINES (SSBN)9COLD WAR · BALLISTIC MISSILE SUBMARINES (SSBN)122RUSSIA · ALL WEAPONS12PERFORMANCE/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