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Alfa-class submarine
Photo: Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994 · Wikimedia Commons · Public domain
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Alfa-classsubmarine

Attack Submarines (SSN) · Russia · 1964
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Alfa-classsubmarine

Alfa-class submarine
Alfa-class submarine Photo: Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994 · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Stealth
25
Sonar & Sensors
30
Firepower
20
Speed
95
Diving Depth
90
Endurance
40
Survivability
45
Land-Attack Capability
0
Technology
85
Cost-Effectiveness
10
Origin Russia
ManufacturerAdmiralty Shipyards
CategoryAttack Submarines (SSN)
EraCold War
In service1964–1981
Operators1 countries
Quantity7
Data Quality83%
MASS(Military Archive Scoring System)
39
Attack Submarines (SSN) MASS Rating
15/16
Cold War
28/31
All-Time
Attack Submarines (SSN) · 10 axes scored
Stealth
25
Sonar & Sensors
30
Firepower
20
Speed
95
Diving Depth
90
Endurance
40
Survivability
45
Land-Attack Capability
0
Technology
85
Cost-Effectiveness
10
ⓘ Regardless of era, the same scoring system applies to all units in the attack submarines (ssn) category.
01 / Overview
Alfa-class submarine
Country
Prime contractor
Production
1964–1981
Quantity
7
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
ATTACK SUBMARINES (SSN) · COLD WAR
15
PERFORMANCE/PRICE
10
UNIT COST (2025 USD)
—
39
attack submarines (ssn) category
ⓘ Performance/Price and MASS score are computed across all units in the attack submarines (ssn) category, regardless of era.
02 / Specs & Design
◎Identification7MOD.7
  • Hull ClassificationProject 705 Lira
  • Submarine TypeNuclear attack submarine
  • Builder / ShipyardAdmiralty yard, Sevmash
  • Laid Down1964
  • Commissioned1971
  • Boats in Class7
  • In ServiceNo
◈Displacement & Dimensions5MOD.5
  • Surfaced Displacement2,300 t
  • Submerged Displacement3,200 t
  • Length69.2 m
  • Beam9.5 m
  • Draft7.6 m
▣Propulsion7MOD.7
  • PropulsionNuclear
  • Reactor TypeLead-bismuth cooled, beryllium-moderated
  • Nuclear-PoweredYes
  • Shaft Power29,828 kW
  • Propulsor Typepropeller
  • Top Speed (surfaced)12 kn
  • Top Speed (submerged)41 kn
◇Diving & Endurance3MOD.3
  • Test Depth400 m
  • Maximum Operating Depth700 m
  • Complement (crew)31
◆Armament5MOD.5
▤Sensors4MOD.4
  • Bow SonarOcean
  • Surface-Search RadarTopol MRK.50
  • ESM / ELINT SuiteYes
  • Combat SystemAccord
⬢Stealth1MOD.1
▲Production2MOD.2
  • First of Class1971
  • Operators1
◎Fleet Status5MOD.5
  • Completed7
  • Active0
  • Planned8
  • Cancelled1
  • Retired7
◈Armour1MOD.1
  • Armourtitanium alloy hull
03 / History
SERVICE LIFESPANStill in Service
  1. 1964Production started
  2. 1973Entered service
  3. 1981Production ended
62
years in service
17
years in production
7
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE5terms
Anti-ship missiles are guided missiles designed to engage and destroy naval vessels. They are typically used by aircraft, ships, or submarines to attack enemy ships.
Cruise missiles are self-propelled, guided weapons launched from platforms like attack submarines (SSNs) to deliver warheads over long distances with precision.
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.
Laying explosive mines underwater from a submarine.
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
📖 ENCYCLOPEDIA Browse the Attack Submarines (SSN) entry →