Data Quality83%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the offshore patrol vessels (opv) category.
01 / Overview
Tsugaru-class patrol vessel
Category
Country
Production
1978–2001
Quantity
9
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
OFFSHORE PATROL VESSELS (OPV) · COLD WAR
4
PERFORMANCE/PRICE
87
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the offshore patrol vessels (opv) category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
- Hull ClassificationPLH
- Ship TypeOffshore Patrol Vessel (OPV)
- Builder / ShipyardIHI Corporation
- Ships in Class9
- In ServiceYes
◈Displacement1MOD.1
- Full Load Displacement4,037 t
▣Dimensions3MOD.3
- Length (overall)105.4 m
- Beam14.6 m
- Draft8 m
◇Complement1MOD.1
- Total Complement69
◆Propulsion7MOD.7
- Propulsion Typediesel
- Arrangement (CODAG/COGAG…)2 shafts, 2 diesel engines
- Number of Engines2
- Shafts / Screws2
- Top Speed23 kn
- Range6,000
- Nuclear-PoweredNo
▤Gun Armament4MOD.4
- Main GunOerlikon 35 mm twin cannon L/90
- Main Gun Calibre35 mm
- Main Gun Count1
- Secondary GunsJM61-RFS 20 mm
⬢Missile Armament3MOD.3
▲Underwater Warfare3MOD.3
◎Aviation5MOD.5
- Embarked Helicopters1
- HangarNo
- Flight DeckYes
- Fixed-Wing Aircraft0
- UAV CapabilityNo
◈Sensors & Combat Systems4MOD.4
- Phased-Array RadarNo
- Combat SystemHeli-TV, SATCOM, OIC section
- Aegis / EquivalentNo
- Electronic WarfareNo
▣Survivability5MOD.5
- CBRN CitadelNo
- DegaussingNo
- Hull Materialsteel
- Stealth ShapingNo
- Automated Damage ControlNo
◇Fleet Status7MOD.7
- Completed9
- Active9
- Under Construction0
- Cancelled0
- Lost0
- Retired0
- Preserved0
03 / History
SERVICE LIFESPANStill in Service
- 1978Production started
- 2001Production ended
- 2003Entered service
48
years in service
23
years in production
9
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
OFFSHORE PATROL VESSELS (OPV) RANKING Offshore Patrol Vessels (OPV) · Cold War
MASS RANKINGSMASS ↗
39OFFSHORE PATROL VESSELS (OPV)4COLD WAR · OFFSHORE PATROL VESSELS (OPV)112JAPAN · ALL WEAPONS1PERFORMANCE/PRICE · OFFSHORE PATROL VESSELS (OPV)
ⓘ Rankings are within theOffshore Patrol Vessels (OPV)category.
📖 TERMS ON THIS PAGE1terms
The upper deck of an aircraft carrier, equipped for aircraft takeoff, landing, and maintenance operations.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources