Data Quality87%
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
Otra-class minesweeper
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MINE COUNTERMEASURES VESSELS (MCM) · WORLD WAR II
9
PERFORMANCE/PRICE
63
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
◎Identification3MOD.3
- Hull ClassificationMine Countermeasures Vessel
- Ship TypeMine Countermeasures Vessel
- Rolelocating and removing naval mines
03 / History
SERVICE LIFESPANStill in Service
- 1939Production started
87
years in service
2
countries operating
ⓘ The producing country still actively operates it. 2 countries retired it.
05 / MASS Score
MINE COUNTERMEASURES VESSELS (MCM) RANKING Mine Countermeasures Vessels (MCM) · World War II
MASS RANKINGSMASS ↗
112MINE COUNTERMEASURES VESSELS (MCM)9WORLD WAR II · MINE COUNTERMEASURES VESSELS (MCM)54NORWAY · ALL WEAPONS129PERFORMANCE/PRICE · MINE COUNTERMEASURES VESSELS (MCM)
ⓘ Rankings are within theMine Countermeasures Vessels (MCM)category.
📚 Sources