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Echo I-class submarine
Photo: employed US Navy · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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EchoI-classsubmarine

Guided Missile Submarines (SSGN) · Russia
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EchoI-classsubmarine

Echo I-class submarine
Echo I-class submarine Photo: employed US Navy · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
MASS (Military Archive Scoring System) 13
* Absolute score — assessed within category · no era adjustment
Land-Attack Firepower
5
Missile Payload
15
Stealth
5
Sensors
10
Special-Ops Capability
0
Endurance
35
Survivability
10
Versatility
10
Technology
15
Strategic Impact
35
Methodology ↗ → Guided Missile Submarines (SSGN) ranking
Origin Russia
ManufacturerAmur Shipbuilding Plant
CategoryGuided Missile Submarines (SSGN)
Operators1 countries
⬇ Overview
⚙ Specs
⊕ History
⊕ Operators
⚖ MASS Score
📚 Sources
Data Quality81%
MASS(Military Archive Scoring System)
⊟ Guided Missile Submarines (SSGN)ranking ↗methodology ↗
13
Guided Missile Submarines (SSGN) MASS Rating
9/10
All-Time
Guided Missile Submarines (SSGN) · 10 axes scored
Land-Attack Firepower
5
Missile Payload
15
Stealth
5
Sensors
10
Special-Ops Capability
0
Endurance
35
Survivability
10
Versatility
10
Technology
15
Strategic Impact
35
ⓘ Regardless of era, the same scoring system applies to all units in the guided missile submarines (ssgn) category.
01 / Overview
Echo I-class submarine
Category
Guided Missile Submarines (SSGN)
Country
Russia
Prime contractor
Amur Shipbuilding Plant
Operators
1 countries
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
GUIDED MISSILE SUBMARINES (SSGN)
—
PERFORMANCE/PRICE
20
UNIT COST (2025 USD)
—
MASS SCORE ↗
13
guided missile submarines (ssgn) category
ⓘ Performance/Price and MASS score are computed across all units in the guided missile submarines (ssgn) category, regardless of era.
02 / Specs & Design
03 / History
04 / Operators
Operator Countries1country
RussiaACTIVE
05 / MASS Score
GUIDED MISSILE SUBMARINES (SSGN) RANKING Guided Missile Submarines (SSGN)
#7 RU Charlie-class submarine 23 #8 RU Charlie II-class submarine 20 #9 RU Echo I-class submarine (this weapon) 13
MASS RANKINGSMASS ↗
9GUIDED MISSILE SUBMARINES (SSGN)1787RUSSIA · ALL WEAPONS9PERFORMANCE/PRICE · GUIDED MISSILE SUBMARINES (SSGN)
ⓘ Rankings are within theGuided Missile Submarines (SSGN)category.
Guided Missile Submarines (SSGN) Russia Amur Shipbuilding Plant
📚 Sources
📖 ENCYCLOPEDIA Browse the Guided Missile Submarines (SSGN) entry →