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Type 091 submarine
Photo: Service Depicted: Other Service (Assets/Still/1994/Navy/DN-SN-94-00790) · Wikimedia Commons · Public domain
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Type091submarine

Attack Submarines (SSN) · People's Republic of China · 1968
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Type091submarine

Type 091 submarine
Type 091 submarine Photo: Service Depicted: Other Service (Assets/Still/1994/Navy/DN-SN-94-00790) · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Stealth
30
Sonar & Sensors
35
Firepower
40
Speed
45
Diving Depth
30
Endurance
40
Survivability
30
Land-Attack Capability
20
Technology
30
Cost-Effectiveness
40
Origin People's Republic of China
CategoryAttack Submarines (SSN)
EraCold War
In service1968–1990
Operators1 countries
Quantity5
Data Quality83%
MASS(Military Archive Scoring System)
33
Attack Submarines (SSN) MASS Rating
16/16
Cold War
29/31
All-Time
Attack Submarines (SSN) · 10 axes scored
Stealth
30
Sonar & Sensors
35
Firepower
40
Speed
45
Diving Depth
30
Endurance
40
Survivability
30
Land-Attack Capability
20
Technology
30
Cost-Effectiveness
40
ⓘ Regardless of era, the same scoring system applies to all units in the attack submarines (ssn) category.
01 / Overview
Type 091 submarine
Production
1968–1990
Quantity
5
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
ATTACK SUBMARINES (SSN) · COLD WAR
16
PERFORMANCE/PRICE
35
UNIT COST (2025 USD)
—
33
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 ClassificationSSN
  • Submarine Typeattack submarine
  • Builder / ShipyardBohai Shipyard, Huludao
  • Laid Down1968
  • Commissioned1974
  • Boats in Class5
  • In ServiceYes
◈Displacement & Dimensions3MOD.3
  • Submerged Displacement6,500 t
  • Length106 m
  • Beam9.6 m
▣Propulsion7MOD.7
◇Diving & Endurance1MOD.1
  • Maximum Operating Depth300 m
◆Armament6MOD.6
▤Sensors1MOD.1
  • Bow SonarSQZ-3 / Type 603 active sonar
⬢Production2MOD.2
  • First of Class1974
  • Operators1
▲Fleet Status3MOD.3
  • Completed5
  • Active3
  • Retired2
03 / History
SERVICE LIFESPANStill in Service
  1. 1968Production started
  2. 1974Entered service
  3. 1990Production ended
58
years in service
22
years in production
5
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE3terms
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.
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 →