Data Quality88%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the mine countermeasures vessels (mcm) category.
01 / Overview
MMS-class minesweeper
Country
Production
1940–1945
Quantity
396
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MINE COUNTERMEASURES VESSELS (MCM) · WORLD WAR II
14
PERFORMANCE/PRICE
94
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the mine countermeasures vessels (mcm) category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
- Hull Classification105 ft motor minesweeper
- Ship TypeMinesweeper
- Ships in Class396
- RoleMine countermeasures (magnetic and acoustic minesweeping)
- In ServiceYes
◈Displacement & Dimensions5MOD.5
- Light Displacement245 t
- Full Load Displacement240 t
- Length33.2 m
- Beam7 m
- Draft2.6 m
▣Capacity3MOD.3
- Well DeckNo
- Landing Craft Carried0
- Ro-Ro CapabilityNo
◇Propulsion4MOD.4
- Propulsion TypeDiesel engine
- Shaft Power375 kW
- Top Speed12 kn
- Complement (crew)20
◆Aviation4MOD.4
- Embarked Helicopters0
- HangarNo
- Flight DeckNo
- Fixed-Wing / VSTOL0
▤Self-Defense3MOD.3
- Main Gun2 × Oerlikon 20 mm cannon
- Electronic WarfareNo
- Decoy LaunchersNo
⬢Fleet Status3MOD.3
- Completed396
- Under Construction0
- Cancelled0
▲Armour3MOD.3
- ArmourNone
- Belt Armour0 mm
- Deck Armour0 mm
03 / History
SERVICE LIFESPANStill in Service
- 1939First deployment: World War II
- 1940Production started
- 1941Entered service
- 1945Production ended
86
years in service
5
years in production
396
units produced
2
countries operating
ⓘ The producing country still actively operates it. 7 countries retired it.
04 / Operators
Operator Countries9country
MMS-class minesweeperSALES2records
Canada
Franceⓘ "Present Value" is an estimated amount adjusted for inflation.
05 / MASS Score
MINE COUNTERMEASURES VESSELS (MCM) RANKING Mine Countermeasures Vessels (MCM) · World War II
MASS RANKINGSMASS ↗
139MINE COUNTERMEASURES VESSELS (MCM)14WORLD WAR II · MINE COUNTERMEASURES VESSELS (MCM)870UNITED KINGDOM · ALL WEAPONS1PERFORMANCE/PRICE · MINE COUNTERMEASURES VESSELS (MCM)
ⓘ Rankings are within theMine Countermeasures Vessels (MCM)category.
📚 Sources