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Project 266M Akvamarin
Photo: Vyacheslav Argenberg from Rostov-on-Don, Russian Federation · Wikimedia Commons · CC BY 2.0
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Project266MAkvamarin

Mine Countermeasures Vessels (MCM) · Russia · 1970
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Project266MAkvamarin

Project 266M Akvamarin
Project 266M Akvamarin Photo: Vyacheslav Argenberg from Rostov-on-Don, Russian Federation · Wikimedia Commons · CC BY 2.0
* Absolute score — assessed within category · no era adjustment
Mine-Hunting Effectiveness
75
Sonar & Sensors
65
Low Signature
60
Clearance Rate
70
UUV Integration
20
Endurance
65
Reliability
80
Survivability
55
Technology
50
Cost-Effectiveness
85
Origin Russia
ManufacturerSredne-Nevskiy Shipyard
CategoryMine Countermeasures Vessels (MCM)
EraCold War
In service1970–1982
Operators6 countries
Quantity45
Data Quality87%
63
Mine Countermeasures Vessels (MCM) MASS Rating
16/38
Cold War
40/173
All-Time
Mine Countermeasures Vessels (MCM) · 10 axes scored
Mine-Hunting Effectiveness
75
Sonar & Sensors
65
Low Signature
60
Clearance Rate
70
UUV Integration
20
Endurance
65
Reliability
80
Survivability
55
Technology
50
Cost-Effectiveness
85
ⓘ Regardless of era, the same scoring system applies to all units in the mine countermeasures vessels (mcm) category.
01 / Overview
Project 266M Akvamarin
Country
Prime contractor
Production
1970–1982
Quantity
45
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MINE COUNTERMEASURES VESSELS (MCM) · COLD WAR
16
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
63
mine countermeasures vessels (mcm) category
ⓘ Performance/Price and MASS score are computed across all units in the mine countermeasures vessels (mcm) category, regardless of era.
02 / Specs & Design
◎Identification6MOD.6
  • Hull Classificationocean minesweeper
  • Ship Typeminesweeper
  • BuilderKB Baltic Zavod
  • Commissioned1970
  • Ships in Class45
  • Roleocean minesweeping
◈Displacement & Dimensions5MOD.5
  • Light Displacement852 t
  • Full Load Displacement873 t
  • Length61 m
  • Beam10.2 m
  • Draft3.6 m
▣Propulsion6MOD.6
  • Propulsion Typediesel
  • Shaft Power3,677 kW
  • Top Speed17 kn
  • Range1,500
  • Endurance7 day
  • Complement (crew)68
◇Aviation1MOD.1
  • Embarked Helicopters0
◆Self-Defense5MOD.5
▤Fleet Status2MOD.2
  • Active5
  • Lost1
⬢Armour1MOD.1
  • Armournone
03 / History
SERVICE LIFESPANStill in Service
  1. 1970Production started
  2. 1982Production ended
56
years in service
12
years in production
45
units produced
2
countries operating
ⓘ The producing country no longer actively operates it. 4 countries retired it.
04 / Operators
Operator Inventory2country · 10units
10active
Project 266M AkvamarinSALES4records
YearBuyerQuantityAmountPresent Value (2025)
—India12——
—Libya8——
—Syria1——
—Yemen1——
ⓘ "Present Value" is an estimated amount adjusted for inflation.
📖 TERMS ON THIS PAGE1terms
Military action involving the use of electromagnetic spectrum to disrupt, deceive, or destroy enemy electronic systems.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Mine Countermeasures Vessels (MCM) entry →